JP5387488B2 - Ground driving member with drainage function and its construction method, underground wall and plug protection member - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a ground driving member with a drainage function provided with a plug protection member that is used when a structure or the like is constructed on a ground that may be liquefied, a construction method thereof, an underground wall, and a plug protection member.

Conventionally, in the case of a sheet pile that has penetrated into the ground that requires countermeasures against liquefaction, the ground loses the support function of the sheet piles due to the ground liquefaction at the time of an earthquake. For example, FIG. It is also known that a steel sheet pile with a drainage function as shown in a) and (b) is inserted into the ground or a steel sheet pile with a drainage function is used for compacting the soft ground (for example, Patent Document 1). reference).
The steel sheet pile 50 with a drainage function fits and fixes the plug 12 provided with a filter for preventing sediment intrusion to the drainage member 5 provided with a through hole at an interval, and the drainage member 5 is a steel sheet pile 51. The structure is fixed to one side or both sides.
Further, as shown in FIG. 51 (b), in order to prevent damage to the filter 16, a steel sheet pile with a drainage function provided with a drainage member 5 provided with a stopper 12 having a structure in which a water-permeable filter protection member 17 is provided. 50 is also known.

Japanese Patent Laid-Open No. 02-225712 Japanese Patent Laid-Open No. 04-289315

  In the case of the prior art, there are problems as described in (1) and (2) below.

(1) In the case of the conventional case, since the mounting portion of the plug 12 protrudes from the through hole of the draining member 5 as the protruding portion 13, the steel sheet pile 50 with a draining function is being placed on the ground. The protruding portion 13 of the mounting portion may be worn away by friction with the soil (sand) and may be detached.
The ground that needs countermeasures against liquefaction is not only the ground consisting only of the sand layer, but also the ground where the sand layer and the clay layer exist alternately. In such ground, fine soil particles such as clay may clog the filter 16 and the filter protection member 17, or depending on the shape (size, degree of squareness) of the soil particles, the filter 16 and the filter protection member 17 may become clogged. There was damage.
Thus, when the filter 16 or the filter protection member 17 is clogged or the filter 16 or the filter protection member 17 is in a damaged state, water collection is performed with respect to the water collecting action in the soil water indicated by the arrow X in FIG. There is a problem that it becomes impossible or fine soil particles enter and accumulate in the drainage channel 52 formed between the drainage member 5 and the steel sheet pile 51 and cannot function as a drainage channel.
This fine soil particle intrusion / deposition phenomenon occurs even when a ground driving member with a drainage function is constructed by the water jet combined method, and there is a problem that the function of the drainage channel cannot be exhibited.

(2) When the soil layer structure of the ground is not only sandy soil but also viscous soil, when the plug 12 having the filter 16 passes through the viscous soil, the soil is filtered by the viscous soil having adhesive force. May be blocked.
In such a state, even if the water pressure of soil water (pore water) rises at the time of the earthquake, the rising water pressure cannot escape to the drainage channel through the water passing part of the filter 16, so the liquefaction phenomenon at the time of the earthquake There was a problem that it was not possible to reduce the excess pore water pressure of the soil water that caused the water.
It is an object of the present invention to provide a ground driving member with a drainage function, its construction method, an underground wall and a plug protection member that can advantageously solve the above-mentioned problems.

In the protection structure of the drainage member in the ground driving member with the drainage function of the first invention, the ground driving member body includes a draining member that forms a drainage channel along the longitudinal direction of the ground driving member body, and the drainage member In the ground driving member with a drainage function in which a plug having a plurality of holes and having a through hole in the axial direction and having a filter in the through hole is attached to each of the holes, a large number of filters in the drainage member are provided. A stopper protecting member for securing a filter function is disposed so as to cover the front side of the stopper of the first stopper, and the stopper protecting member is locked to the ground driving member and provided on the drainage member side. In addition, a plurality of holes penetrating at the same arrangement intervals as the arrangement intervals of the stoppers are provided .
In the second invention, in the protective structure for the drainage member in the ground driving member with the drainage function according to the first invention, the stopper protection member is provided with a lower part stopper and a drainage member provided so as to protrude from the lower part of the drainage member. The movement in the vertical direction is restricted by an upper stopper provided so as to protrude from the upper portion of the upper portion.
According to a third aspect of the present invention, in the protective structure for a drainage member in the ground driving member with a drainage function according to the second aspect of the present invention, the upper stopper is detachably provided on the ground driving member.
According to a fourth invention, in the protection structure for a drainage member in the ground driving member with a drainage function according to any one of the first to third inventions, the stopper protective member is disposed around the stopper and fixed to the ground driving member. The prevention member prevents blurring in the front-rear direction and / or the left-right direction.
In 5th invention, in the protection structure of the member for drainage in the ground driving member with a drainage function in any one of 1st invention-4th invention, the stopper protection member is steel members, such as a steel plate or a shape steel, It is characterized by the above-mentioned. And
In the sixth invention, in the protection structure for the drainage member in the ground driving member with the drainage function according to the fifth invention, the holes in the stopper protection member provided with a number of through holes and the plugs provided on the drainage member side The position is characterized in that the positions are shifted in the vertical direction.
In 7th invention, in the protection structure of the drainage member in the ground drive-in member with drainage function in any one of 1st invention- 6th invention, it is at least one of the drainage member or the plug protection member arrange | positioned facing this In order to prevent the stopper protecting member from interfering with the stopper on the drainage member side, a spacer is provided continuously or intermittently, and the protruding height of the spacer in the plate thickness direction of the stopper protecting member is at least the stopper It is characterized by the height dimension of the locking portion.
In the ground driving member with drainage function having the drainage member protection structure of the eighth invention, the drainage member protection structure in the ground driving member with drainage function according to any one of the first to seventh inventions is formed by grooved steel. It is provided in the ground driving member of either steel sheet piles, such as a sheet pile, a hat-shaped steel sheet pile, a steel pipe sheet pile, and a linear steel sheet pile, or steel piles, such as a steel pipe pile.
The plug protection member of the ninth invention is a plug protection member used for a ground driving member with a drainage function provided with the drainage member protection structure of the eighth invention, wherein the plug protection member is a steel plate or a section steel, etc. It is a steel member.
According to a tenth invention, in the plug protection member of the ninth invention, the plug protection member is provided with a number of holes so as to correspond to a number of plugs provided in the drainage member.
The construction method of the ground driving member with drainage function according to the eleventh aspect of the invention is the construction method of the ground driving member with drainage function provided with the protection structure of the draining member according to the eighth aspect of the invention, comprising the protective structure of the drainage member. Further, the stopper protecting member is pulled out after the ground driving member with a draining function is inserted into the ground where countermeasures for liquefaction and compaction drainage are required.
In the construction method of the ground driving member with the drainage function of the twelfth invention, the construction method of the ground driving member with the drainage function having the drainage member protection structure of the sixth invention or the seventh invention, After penetrating the ground driving member with a drainage function with a protective structure into the ground where countermeasures against liquefaction and compaction drainage are required, the plug protection member is lifted slightly, and a plurality of holes penetrating the plug protection member side A large number of stoppers on the drainage member side are opposed to each other at the same level.
In a thirteenth aspect of the invention, in the construction method of the ground driving member with a drainage function according to the twelfth aspect of the invention, the plug protection member is slightly lifted and then connected to the ground driving member and the plug protection member by a connecting member. To do.
In the fourteenth invention, in the construction method of the ground driving member with drainage function of the eleventh to thirteenth inventions, among the parts constituting the ground driving member with draining function provided with the drainage member protection structure of the eighth invention, the ground A temporary stopper that is attached to the driving member main body, a drainage member, a tip protection member, a side shaking prevention member and a front shaking prevention member, or a side shaking and front shaking prevention member are attached to the ground driving member body in the field. And
In the construction method of the underground wall with a drainage function of the fifteenth aspect of the invention, a plurality of ground driving members with a drainage function are continuously provided in the lateral direction by the construction method of the ground driving member with a drainage function of any of the eleventh to fourteenth aspects. Then, it is characterized by constructing an underground wall with a drainage function by intruding intermittently.
The underground wall with a drainage function according to the sixteenth aspect of the invention is constructed by the construction method of the underground wall with a drainage function according to the fifteenth aspect of the invention.

According to the protection structure for a draining member of the first invention, the ground driving member body includes a draining member that forms a drainage channel along the longitudinal direction of the ground driving member body, and the draining member has a plurality of holes. A ground driving member with a drainage function in which a plug having a through hole in the axial direction and having a filter in the through hole is attached to the hole, respectively, the front side of many plugs having a filter in the drainage member A plug protection member for securing the filter function is disposed so as to cover the plug protection member, and the plug protection member is locked to the ground driving member. Therefore, it is necessary to take measures against liquefaction of the ground driving member with a drainage function. When penetrating into the ground, the plug protection member does not make direct contact between the plug and earth and sand, so the plug can be protected by the plug protection member. It is possible to prevent clogging, the effect of such may be draining function ground driving member capable of penetrating the ground driving member to the ground while ensuring a plug of filter function is obtained. In addition, since the stopper protection member is merely locked to the ground driving member, effects such as a simple protection structure can be obtained.
Moreover, even if a sandy layer or a clay layer or these exist in the ground when the ground driving member with a drainage function is inserted, the plug can be reliably protected by the plug protection member.
Further, since the plug protection member is provided with a through-hole at the same arrangement interval as the arrangement intervals of the many plugs provided on the drainage member side, the plug protection member is provided for the plug on the drainage member side. The part between the holes on the side can be arranged correspondingly so that the plug does not directly contact the fine soil particles, and after penetration into the ground, the plug protection member is raised to slightly lift the plug protection member side These holes can be made to correspond to the plugs on the drainage member side, and the front of the plug can be opened from the wall between the holes of the plug protection member.
According to the second aspect of the present invention, the stopper protecting member is moved in the vertical direction by the lower portion stopper provided so as to protrude from the lower portion of the drainage member and the upper portion stopper provided so as to protrude from the upper portion of the drainage member. Since the movement is restricted, the plug protection member is left behind due to the friction between the ground and the plug protection member when the ground driving member with drainage function provided with the plug protection member is inserted into the ground that requires countermeasures against liquefaction. The effect of eliminating the fear and being able to surely insert the stopper protecting member into the ground together with the ground driving member can be obtained. Moreover, effects such as a simple structure that restrains the movement of the stopper protecting member in the vertical direction can be obtained.
According to the third invention, since the upper stopper is detachably provided on the ground driving member, the upper stopper should not interfere with the stopper protecting member when the stopper protecting member is pulled out from the ground or slightly lifted. In the removed state, the stopper protecting member can be raised and pulled out from the ground.
According to the fourth aspect of the present invention, the plug protection member is provided with the plug protection member because the blur prevention member disposed around the stopper and fixed to the ground driving member prevents the blurring in the front-rear direction and / or the left-right direction. When a ground driving member with a drainage function is inserted into the ground where liquefaction measures are required, when the plug protection member penetrates into the ground, there is a risk that the plug protection member may be greatly displaced forward or left and right from the ground driving member. It is possible to eliminate this, and it is possible to obtain an effect that the ground driving member can be penetrated into the ground where liquefaction countermeasures are required while the plug provided on the drainage member is reliably protected.
According to the fifth aspect of the invention, since the stopper protecting member is a steel member such as a steel plate or a shaped steel, an effect can be obtained such that an inexpensive stopper protecting member can be obtained using an inexpensive commercially available steel material.
According to the sixth invention, the hole in the plug protection member provided with a number of through-holes and the position of the plug provided on the drainage member side are shifted in the vertical direction. Simply displace the hole on the plug protection member side and the hole on the drainage member side in the vertical direction, and place the part between the holes on the plug protection member side corresponding to the plug on the drainage member side. It is possible to prevent the plug from coming into direct contact with the fine soil particles. After entering the ground, the plug protection member is lifted so as to be slightly lifted so that the hole on the plug protection member side matches the plug on the drainage member side. The effect that it can be made to correspond to is acquired.
According to the seventh aspect of the present invention, at least one of the drainage member and the plug protection member disposed opposite to the drainage member or the plug protection member is arranged continuously or intermittently so that the plug protection member does not interfere with the plug on the drainage member side. Since the protruding height of the spacer in the plate thickness direction of the stopper protective member is at least the height of the stopper locking portion, the spacer is provided on the drainage member side, or Provided on the stopper protection member side, or provided with spacers on both the drainage member and the stopper protection member to prevent the stopper protection member from interfering with the stopper on the drainage member side and damaging the stopper. The effect that it can do is acquired.
According to the eighth invention, the protection structure for the drainage member according to any one of the first to seventh inventions is made of a steel sheet pile such as a grooved steel sheet pile, a hat-shaped steel sheet pile, a steel pipe sheet pile, a linear steel sheet pile, or a steel pipe pile. Since it is provided in any ground driving member of steel piles such as, it can be a ground driving member with a drainage function equipped with a protection structure for drainage members using commercially available inexpensive ground driving members Is obtained.
According to a ninth aspect of the present invention, there is provided a plug protection member used for a ground driving member with a drainage function provided with the drainage member protection structure of the eighth invention, wherein the plug protection member is a steel member such as a steel plate or a section steel. Therefore, effects such as the ability to produce a stopper protective member using a commercially available inexpensive steel material can be obtained.
According to the tenth invention, the plug protection member is provided with a large number of holes so as to correspond to a large number of plugs provided in the drainage member. It is possible to prevent the plug from coming into direct contact with the fine soil particles by arranging the portions between the holes of the plug so that the plug protection member is lifted up slightly to lift the plug protection member side. The effect of being able to open the front of the plug from the inter-hole wall of the plug protection member is obtained by making the holes correspond to the plugs on the drainage member side, respectively.
According to an eleventh aspect of the invention, there is provided a method for constructing a ground driving member with a drainage function provided with a protection structure for a drainage member according to the eighth invention, wherein the ground driving member with a drainage function provided with a protection structure for a drainage member is liquid. The plug protection member is pulled out after penetrating into the ground where liquefaction measures and consolidation drainage measures are required, so liquefaction measures need to be taken into the ground where it is necessary to protect many plugs in the drainage member by a simple method. The effect that a ground penetration member provided with a function can be penetrated is acquired.
According to the twelfth aspect of the present invention, after inserting a ground driving member with a drainage function having a drainage member protection structure into a ground where liquefaction countermeasures and consolidation drainage countermeasures are required, the stopper protection member is slightly lifted to The many holes that pass through on the protective member side and the many plugs on the drainage member side are made to face each other at the same level, so the plug protection member is lifted up slightly to drain the hole on the plug protection member side. The ground driving member provided with the plug protection member and the drainage member can be easily penetrated into the ground by a simple method corresponding to the level of the plug on the member side, so that the plug in the drainage member has a predetermined water permeability. The effect that the stopper protecting member can be arranged at a predetermined position so that the function can be exhibited is obtained.
According to the thirteenth aspect of the present invention, since the stopper protecting member is slightly lifted, the ground driving member and the stopper protecting member are connected by the connecting member, so that the stopper protecting member after being slightly lifted is placed at a predetermined position in the ground. In addition, even if a stopper protecting member is present, effects such as the ability of the stopper in the drainage member to exhibit a predetermined water permeability function can be obtained.
According to the fourteenth invention, of the parts other than the ground driving member main body constituting the ground driving member with drainage function provided with the drainage member protection structure of the eighth invention, the temporary stopper for attaching to the ground driving member main body, for drainage With a drainage function equipped with a protection structure for drainage members, members, tip protection members, side shake prevention members and forward shake prevention members, or side shake and forward shake prevention members are attached to the ground driving member body in the field. Compared to the case where the entire ground driving member is assembled and transported, when transporting the ground driving member from a factory or the like, it can also be transported in a non-bulky state, improving the transport efficiency and at the site. As a result, it is possible to obtain an effect such as that the assembly can be easily and accurately assembled.
According to the fifteenth invention, the ground driving member with a drainage function according to any one of the eleventh invention to the fourteenth invention is continuously or intermittently provided with a plurality of ground driving members with a drainage function in the ground. Since the underground wall with drainage function is constructed by penetrating, the drainage function is provided by the ground driving member with drainage function that can reliably demonstrate the water permeability performance with the plug in the drainage member protected reliably. The effect that an underground wall can be constructed easily is acquired.
According to the sixteenth invention, since it is constructed by the construction method of the underground wall with the drainage function of the fifteenth invention, the water permeability performance constructed in a state where the plug in the drainage member is securely protected is surely exhibited. It is possible to obtain an effect such as a ground wall with a drainage function by a ground driving member with a drainage function.

It is a partially cutaway front view showing a ground driving member (sheet pile) with a drainage function according to the first embodiment of the present invention. It is the sectional view on the aa line of FIG. (A) is the bb sectional view taken on the line of FIG. 1, (b) is a cross-sectional top view which expands and shows a part. It is a front view which shows the state which removed the temporary retaining member from the state of FIG. 1 after penetrating the ground driving member into the soft ground. It is a front view which shows the state which pulled out the stopper protection member from the state of FIG. 4, and opened the front side of the stopper with a filter. It is a vertical side view of FIG. FIG. 6 is a transverse plan view of FIG. 5. It is the front view of the ground driving | running member (sheet pile) with a drainage function which shows the whole of FIG. It is a partially notched front view showing a ground driving member with a drainage function (sheet pile) according to a second embodiment of the present invention. FIG. 10 is a sectional view taken along line cc in FIG. 9. FIG. 10 is a sectional view taken along line dd in FIG. 9. It is a partially notched front view showing a ground driving member (sheet pile) with a drainage function according to a third embodiment of the present invention. It is the ee sectional view taken on the line of FIG. It is the ff sectional view taken on the line of FIG. It is a vertical side view which shows the state which removed the temporary fix | stop stopper (upper part stopper). It is a cross-sectional top view which shows the form which gave a groove process to the leg part of the member for drainage, and showed the form which welded the member for drainage to the ground drive-in member. It is a cross-sectional top view which shows the form which provided the some spacer in either one of the member for drainage or the stopper protection member. 1 shows a band plate-like stopper protecting member, wherein (a) is a front view and (b) is a plan view. The band-plate-shaped stopper | protector member provided with the spacer is shown, Comprising: (a) is a front view, (b) is a top view. The other form of the strip | belt-shaped stopper protection member provided with the spacer is shown, Comprising: (a) is a front view, (b) is a top view. It is a partially notched front view showing a ground driving member (sheet pile) with a drainage function according to a fourth embodiment of the present invention. It is the gg sectional view taken on the line of FIG. It is the hh sectional view taken on the line of FIG. It is a cross-sectional top view which shows the state which pulled out the stopper protection member. The stopper protecting member is shown, wherein (a) is a front view and (b) is a plan view. (A) is a front view which shows the upper part of the ground drive member with a drainage function (sheet pile) of 5th Embodiment of this invention, (b) is a vertical side view. It is a partially notched front view showing a ground driving member (sheet pile) with a drainage function according to a sixth embodiment of the present invention. It is the ii sectional view taken on the line of FIG. FIG. 28 is a sectional view taken along line j-j in FIG. 27. It is a vertical side view which shows the state which removed the temporary fix | stop stopper. After pulling up the plug protection member so that the hole of the plug protection member matches the plug of the drainage member, a temporary stopper is attached to the ground driving member as a position holding member, and the position holding member is welded to the plug protection member FIG. 5 is a partially cutaway front view showing a state in which the stopper protecting member is fixed in a predetermined position and held in a predetermined position. (A) is the top view and front view which show the member for drainage of the ground driving member (sheet pile) with a drainage function, (b) is the top view and front view of a stopper protection member. (A) is the top view and front view which show the member for drainage of the other form of the ground driving member (sheet pile) with a drainage function, (b) is the top view and front view of the other form of the stopper protection member. The other form of a stopper protection member is shown, Comprising: (a) is a front view, (b) It is a top view. FIG. 36 is a front view showing the entire ground driving member (sheet pile) with a drainage function provided with the drainage member or the plug protection member shown in FIG. 34 or FIG. 35. It is a cross-sectional top view which shows the representative form of the ground driving | running member with a drainage function (steel pipe sheet pile) of 7th Embodiment of this invention. It is a partially notched front view which shows the representative form of the ground driving member with a drainage function (steel pipe sheet pile) of 7th Embodiment of this invention. It is the kk sectional view taken on the line of FIG. It is a cross-sectional top view which shows the state which removed the stopper protection member from the state of FIG. It is a partially cutaway front view showing a ground driving member with a drainage function (steel pipe sheet pile) according to a seventh embodiment of the present invention with the stopper protecting member removed. It is the ll sectional view taken on the line of FIG. It is a cross-sectional plan view which shows the ground driving member with a drainage function (steel pipe pile) of 8th Embodiment of this invention. It is a partially notched front view showing a ground driving member with a drainage function (steel pipe pile) according to an eighth embodiment of the present invention. FIG. 44 is a cross-sectional view taken along the line m-m in FIG. 43. It is a partially notched front view which shows the ground driving member with a drainage function (steel pipe pile) of 8th Embodiment of this invention of the state which removed the stopper protection member. It is the nn sectional view taken on the line of FIG. It is a cross-sectional plan view which expands and shows a part of FIG. 36 or FIG. It is a cross-sectional top view which shows the ground driving member with a drainage function (steel pipe sheet pile or steel pipe pile) which has arrange | positioned the plug protection member of another form. It is a cross-sectional top view which shows the state which built the underground continuous wall using the ground driving member with a drainage function (steel pipe sheet pile). It is a cross-sectional top view which shows the state which built the underground pile row | line | column using the ground driving member with a drainage function (steel pipe pile). (A) is a perspective view which shows a part of conventional ground driving member with a drainage function, (b) is an enlarged longitudinal side view showing the vicinity of a stopper having a filter. It is a cross-sectional top view which shows the state which built the underground continuous wall using the ground driving member with a drainage function (steel sheet pile). It is a partially cutaway front view showing a form in which a drainage layer made of sand and gravel is provided in the upper layer of the ground. It is a vertical side view of FIG.

    Next, the present invention will be described in detail based on the illustrated embodiment.

(First embodiment)
1 to 3 show a ground driving member 1 having a drainage function provided with a drainage member and a plug protection member according to a first embodiment of the present invention. The state shown in FIGS. 1 to 3 is a state immediately before or immediately after being driven into the ground 25 or the soft ground 25 (hereinafter also simply referred to as the ground 25) that needs to be liquefied. In FIG. 4, the temporary stopper 2 as an upper stopper in the sheet pile 1 with drainage function provided with the drainage member and the stopper protection member shown in FIGS. 1 to 3 is removed, and the stopper protection member 3 is removed. FIG. 5 to FIG. 7 show the state immediately before the plug protection member 3 is pulled out when the lifting rope 4 is locked, and FIGS. 5 to 7 show the outer peripheral side surface of the drainage member 5. The exposed state is shown.

  First, the structure of the ground driving member 1 having a drainage function provided with the drainage member and the plug protecting member according to the first embodiment of the present invention will be described. The ground driving member body 6 is integrally bent on both sides of the connection flange. A grooved steel sheet pile having a cross-section with a joint at the side end of the connected web, connected to a web that is integrally bent and connected to both sides of the connecting flange, and the arm portion provided in parallel to the connecting flange and the above-mentioned It consists of a hat-shaped steel sheet pile with a cross-sectional hat with a joint at the end of the arm part, or a Z-shaped steel sheet pile with a symmetrically extending flange on both sides of the connecting web, and a strip-shaped steel sheet. Steel piles such as straight steel sheet piles with joints integrally on both side edges of the sheet pile body or other cross-sectional steel sheet piles, or steel pipe sheet piles with joints using steel pipes, or steel piles such as steel pipe piles, etc. It can be used to target a steel member driven into the ground.

  In the structure shown in FIGS. 1 to 3, on the groove side formed by the connecting flange 7 and the web 8 on both sides of the ground driving member main body 6 made of a grooved steel sheet pile, the connecting flange 7 The flange 9 for connecting the steel sheet pile is welded to the front side of the groove side by welding the both side plates 9 of the steel drainage member 5 having a cross-sectional groove shape so as to be continuous with the longitudinal direction of the sheet pile at the intermediate portion in the flange width direction 7 is fixed.

On the front side of the drainage member 5, a spacer 10 made of a steel rod such as a round steel is fixed by welding at the center in the width direction so as to extend in the longitudinal direction of the drainage member 5. As shown in FIG. 3 (b), the diameter dimension D of the spacer 10 is at least the height dimension h of the mounting protrusion 13 as the locking part of the plug 12 protruding from the front plate 11 of the drainage member 5. Same or larger than this. In this way, the stopper protecting member 3 is prevented from directly coming into strong contact with the protruding portion 13 of the stopper 12.
The spacer 10 may be fixed to the drainage member 5 side as shown in the figure, or may be fixed to the stopper protection member 3 side (back side). A plurality of spacers may be provided at intervals in the width direction, or the spacer 10 may be omitted as in the embodiment described later. When the spacer 10 is provided on the drainage member 5 side as described above, a typical example of the plug protection member 3 disposed so as to face the spacer 10 is shown in FIGS. . In the form shown in FIG. 18, a flat belt-shaped steel plate is used, and a connecting portion 14 formed of a through hole for lifting at the upper end portion is provided. Instead of the connecting portion 14, a gripping steel plate is fixed to the upper end portion of the stopper protection member 3 by welding or the like, so that the gripping steel plate is gripped by a hydraulic clamp attached to a vibratory hammer. Moreover, it can also be set as the connection part for giving the vibration to the stopper protection member 3 and pulling it up.

  The front plate 11 of the drainage member 5 is provided with a large number of through holes 15 at intervals in the width direction and at intervals in the longitudinal direction. A plurality of stoppers 12 each having a filter 16 are attached, and a water-permeable filter protection member 17 is provided in a lateral hole passing through the stopper 12 so that the filter 16 is placed along the filter protection member 17. doing.

Moreover, as shown in FIG. 2, the leg portions 9 on both sides of the drainage member 5 have a triangular shape such as a right triangle so that the leg portions 9 extend in the longitudinal direction of the sheet pile. Front end side blocking plates 18 made of steel plates are respectively disposed and fixed to the connecting flanges 7 in the leg 9 and the ground driving member main body 6 by welding or the like. 7, a front end protection member 19 made of a front rectangular steel plate is disposed and fixed by welding. <Description of Prior Art> The upper end portion of the tip protection member 19 is located above the lower end portion of the drainage member 5 and forwardly so as to be inclined and rise from the front side of the drainage member 5. It is located and forms the locking part 20 which also serves as the lower part stopper 24. Since the locking portion 20 is provided so as to be inclined and lifted, the downward movement of the distal end portion of the distal end protection member 19 causes the rear portion of the locking portion 20 as the lower portion stopper 24 ( The displacement of the front end portion of the tip protection member 19 in the front-rear direction is restricted by the front surface side of the drainage member 5 and the rear surface of the locking portion 20 (surface on the drainage member 5 side). It is restrained by the side surface V-shaped groove 21.
A side wall V-shaped groove 21 is formed between the front surface side of the front end portion of the drainage member 5 and the engaging portion 20 at the upper end portion of the front end protection member 19, and the stopper protection member is made of a long strip steel plate. 3 is engaged with the inside of the engaging portion 20 of the front end protecting member 19 (that is, engaged with the lower portion stopper 24), so that the front end portion of the stopper protecting member 3 can be positioned and engaged. In addition, the front end portion of the plug protection member 3 is protected and the front side between the front end side blocking plates 18 and the front end side of the drainage member 5 are closed and protected when the ground is driven. ing.
The inner side surface of the locking portion 20 at the upper end of the tip protection member 19 is an inner inclined surface that is inclined so as to approach the drainage member 5 side downward. When setting on the ground, the lower end of the stopper protecting member 3 is guided to the drainage member 5 side so that the lower end of the stopper protecting member 3 can be arranged at a predetermined position.
The lateral width dimension of the stopper protecting member 3 is substantially the same as the lateral width dimension of the drainage member 5.

A plurality of side-rolling prevention members 22 made of steel are spaced apart in the vicinity of the leg portions 9 on both sides of the drainage member 5 and spaced in the vertical direction of the connection flange 7 in the ground driving member main body 6. It is fixed to the connecting flange 7 by welding, and is parallel to the front plate 11 of the drainage member 5 at a predetermined interval and across both webs 8 in the ground driving member main body 6. Are arranged, and both end portions of the forward shake preventing member 23 are fixed to the web 8 by welding.
The lateral shaking prevention member 22 and the forward shaking prevention member 23 are installed on the ground driving member main body 6 at least near the upper and lower ends of the drainage member 5, and a plurality of them are spaced apart in the longitudinal direction of the ground driving member main body 6. Is provided.
After fixing the tip protection member 19, the stopper protection member 3 is placed on the drainage member 5, and the lateral shake prevention member 22 and the forward shake prevention member 23 are attached. Further, when the ground is driven, the plug protection member 3 may be left by friction with the ground, so that it faces the ground driving member main body 6 on the upper end side of the plug protection member 3 close to the upper end surface of the plug protection member 3. Thus, the temporary stopper 2 is disposed, and the base end portion of the temporary stopper 2 is temporarily fixed to the ground driving member main body 6 by welding or the like, so that the stopper protecting member 3 is prevented from coming out upward. The stopper protective member 3 is restrained from moving in the vertical direction.
When the temporary stopper 2 is fixed, the welding length is short, and the connecting flange 7 side of the ground driving member main body 6 is moved to a position where it does not interfere with the plug protection member 3 by hitting with a hammer or the like. It can be easily removed by bending deformation, breaking the welded part, or fusing.
The temporary stopper 2 may be detachably attached to the ground driving member main body 6 as shown in an embodiment described later.
If the tip protection member 19 or a part (part) attached to the ground driving member main body 6 is attached at the site, the transport of the ground driving member main body 6 to the site is not bulky and can be transported efficiently. In addition, the transportation cost can be reduced, and the construction cost can be reduced. In the state where the ground driving member main body 6 is placed on the crosspiece in a horizontally long state, accessory parts including the drainage member 5 or the shake prevention member are attached. In addition, you may assemble to the completion state of the ground driving member 1 with a drainage function provided with the plug protection member containing the plug protection member 3 in a factory, and you may convey to the spot.

As described above, the stopper protecting member 3 is held at a predetermined position in the vertical direction, the lateral blur in the horizontal direction is prevented by the lateral blur prevention member 22 on the left and right sides, and forward blur is prevented. The prevention member 23 prevents backward displacement by the drainage member 5, and the plug protection member 3 prevents significant displacement in the front-rear direction or the left-right direction.
In the first embodiment, the front shake prevention member 23 is made of a U-shaped steel material, and is fixed to the connection flange 7 in the ground driving member main body 6 by welding or the like. You may make it serve as. As described above, in the embodiment in which the drainage member 5 and the lateral shaking prevention member 22 or the forward shaking prevention member 23 are fixed to the face plate such as the connection flange 7 in the ground driving member main body 6, the embodiment described later is the first embodiment. It is also possible to apply to.

As shown above, as shown in FIG. 1 by a two-dot chain line, the ground driving member 1 with a drainage function provided with a drainage member and a plug protection member constituted by attaching various parts to the ground driving member main body 6. The ground 25 is penetrated by a construction machine such as a vibration method.
In this case, when the ground driving member 1 with the drainage function provided with the drainage member and the plug protection member is allowed to penetrate into the ground 25 such as the ground 25 or the soft ground 25 requiring countermeasures against liquefaction, the tip protection member 19 Since all the plugs 12 are covered with the natural ground side (in this form, the front side), the plug protective member 3 prevents the earth and sand on the natural ground side from coming into contact with the plug of the drainage member from below. The earth and sand will move relatively upward along the front side of the stopper protecting member 3.
Further, since the plug protection member 3 is held at a predetermined position with respect to the ground driving member main body 6, the front side of all the plugs 12 of the drainage member 5 is protected and is not damaged by the earth and sand. .
Next, as shown in FIG. 4, the temporary stopper 2 is hit with a hammer or the like, removed from the ground driving member main body 6, and the lifting fitting 4 such as the lifting rope 4 is locked in the hole at the upper end of the plug protection member 3. Then, it is lifted by a crane or the like and removed as shown in FIG. Or although illustration is abbreviate | omitted, a steel plate etc. may be fixed to the upper end part of the stopper protection member 3 by welding, and it may pull out in the state hold | gripped by the hydraulic clamp in a vibro hammer.
Since the spacer 10 is provided on the front side of the drainage member 5 when the plug protection member 3 is pulled up, in this embodiment, the plug protection member 3 is stronger than the protrusion 13 of the plug 12 in the drainage member 5. It is possible to prevent the plug 12 from being damaged by rubbing, and since there is no risk of damage to the drainage equipment such as the plug of the ground driving member body 6 with a drainage function that has been installed on soft ground or the like. The function can be demonstrated reliably.
4 to 7 show a state in which the stopper protecting member 3 has been pulled out and removed, and FIG. 8 shows the entire length of the ground driving member main body 6 with a draining function provided with a draining member. .

In the case of the said embodiment, although the form which provided the one drainage member 5 in the single side | surface of the ground driving member main body 6 was shown, the drainage member 5 was provided in the front and back both surfaces of the ground driving member main body 6 one or more. It is good also as a form, and what is necessary is just to make it provide the plug protection member 3 grade | etc., According to the number of the drainage members 5 in such a case.
As shown in FIG. 5 by a two-dot chain line and as shown in FIG. 52, when the joint driving members 37 are engaged with each other and the ground driving member main body 6 penetrates the ground 25, an underground steel sheet pile wall 46 with a drainage function is constructed. .

(Second Embodiment)
FIGS. 9 to 11 show a ground driving member 1 with a drainage function provided with a drainage member and a plug protection member according to a second embodiment of the present invention. In the second embodiment, the front shake prevention member 23 is a member having a wide width, and a rod-like side shake prevention member 22 made of a stud is further provided between plate-like side shake prevention members 22 spaced vertically. Is different from the first embodiment, the different parts are mainly described, and the same reference numerals are given to the same parts as the first embodiment (the followings) The same applies to the embodiment.)
The rod-like lateral shake prevention member 22 is provided at a protruding height similar to that of the plate-like lateral shake prevention member 22, and a rod-like member such as a steel rod or a stud bolt is provided by stud welding or the like.
It should be noted that the plate-like lateral shake prevention member may be replaced with a rod-like lateral shake prevention member, or the rod-like lateral shake prevention member may be replaced with a plate-like lateral shake prevention member. As long as it is possible to prevent the lateral shake, it is appropriately set depending on the design.

(Third embodiment)
12 to 15 show a ground driving member 1 with a drainage function provided with a drainage member and a plug protection member according to a third embodiment of the present invention. In the third embodiment, the front shake preventing member 23 is formed in a plane U shape and is fixed to the connection flange 7 in the ground driving member main body 6 as the side shake and forward shake preventing member 26. Since it is different from the first embodiment in that the temporary stopper 2 is structured to be attachable to and detachable from the connection flange 7, the difference is mainly described.
In this form, the side-shake and front-shake preventing member 26 is provided with side plates 28 integrally formed on both sides of a front strip 27 of a strip-shaped steel plate by welding assembly or the like, and each side plate 28 is a leg made of a side plate of the drainage member 5. The tip of each side plate 28 is fixed to the connecting flange 7 by welding at a position close to the portion 9 with an interval. The height dimension of the side plate 28 includes the width dimension of the side plate 29 of the drainage member 5 and the height dimension D of the spacer 10 on the front plate side, in addition to the plate thickness dimension of the plug protection member 3, It is set so that a slight gap between the front band plate 27 is generated.
The temporary stopper 2 is configured by fixing the headed bolt 30 and the long nut 31 to the connection flange 7 in the ground driving member main body 6. In the illustrated embodiment, a through hole 32 is provided in the connecting flange 7 of the ground driving member main body 6, and it can be detached by inserting the shaft portion of the headed bolt 30 and screwing the long nut 31 into the headed bolt 30. Temporary stop stopper 2.
As shown in FIG. 16, the front end portion of the side plate 28 in the side shake / forward shake prevention member 26 may be grooved and fixed by penetration welding, or fillet welded as shown in FIG. You may make it fix by. Moreover, as shown in FIG. 17, you may make it provide the spacer 10 in the width direction both sides of the front plate 11 of the member 5 for drainage so that it may continue in an up-down direction, respectively.
As shown in FIG. 17, when the spacer 10 of the rod-shaped steel material which consists of round steel etc. is provided in the width direction both sides of the front surface of the front plate 11 in the drainage member 5, the left and right spacers 10 and the plug protection member Since the infiltration of earth and sand from the lateral direction can be suppressed by 3, the plug 12 can be further prevented from being clogged or damaged. The spacer 10 may be fixed to the drainage member 5 by continuous or intermittent welding, and may be fixed by welding by intermittently interrupting both sides of the rod-shaped steel material.

FIG. 19 shows a configuration in which a spacer 10 made of round steel is fixed continuously in the vertical direction at the center in the width direction on the back side of the stopper protecting member 3. Such a plug protection member 3 can be applied to the drainage member 5 in a form in which the spacer 10 is not provided on the front plate 11 of the drainage member 5 as shown in FIG. The present invention can also be applied to the case where the spacers 10 are provided on both sides of the face plate 11 in the width direction. When spacers 10 are provided on both sides in the width direction of the front plate 11 in the drainage member 5 and the central portion in the width direction of the stopper protection member 3, the stopper protection member 3 does not interfere with each other. The rigidity of can be increased. In addition, when the spacers 10 are provided on both sides in the width direction of the plug protection member 3 and the central portion in the width direction of the front plate 11 in the drainage member 5, the rigidity of the plug protection member 3 can be increased. In some cases, the thickness of the stopper protective member 3 can be reduced.
Since the position of the front plate 11 in the drainage member 5 is regulated by the lateral movement prevention member 22 in the width direction of the front plate 11, the plug protection member 3 is naturally provided with a spacer 10 on the back side of the plug protection member 3. The position of the spacer 10 is attached in advance to a position that does not interfere with the stopper 12. Therefore, for example, referring to FIG. 14, the plug protection member 3 corresponds to a dimension corresponding to ½ of the difference between the side plates 28 and the width dimension of the plug protection member 3 in the side shake / forward shake prevention member 26. Is movable in the left-right direction, so that the half of the dimension between the ends of the left and right plugs 12 attached to the front plate 11 of the drainage member 5 is a dimension corresponding to 1/2 of the difference. The spacer 10 on the stopper protection member 3 side interferes with the protrusion 13 of the stopper 12 on the drainage member 5 side, and the protrusion 13 becomes the spacer on the stopper protection member 3 side. 10 can suppress or prevent damage.
The position where the spacer 10 for the stopper protecting member 3 is provided may be at both ends in the width direction of the plate, and the center or both ends in the width direction of the band plate are projected by bending or the like by cold or hot working, and the spacer May be formed integrally.

FIG. 20 shows a form in which spacers 10 made of round steel are fixed to both sides in the width direction on the back surface of the plug protection member 3 by welding.
In the case of combining the configuration like the stopper protecting member 3 and the drainage member 5 as shown in the figure, the lateral movement of the spacer 10 is restrained so as to restrain the lateral movement corresponding to the half of the width direction. The member 22 and the forward shake prevention member 23 may be provided.
The corner portion of the drainage member 5 may be a corner portion having a circular arc shape or a square corner portion.

(Fourth embodiment)
21 to 25 show a ground driving member 1 with a drainage function provided with a drainage member and a plug protection member according to a fourth embodiment of the present invention. In the fourth embodiment, the stopper protection member 3 is formed in a U-shape so that the stopper protection member 3 is in contact with the connection flange 7 in the ground driving member main body 6 and the temporary stopper 2 is connected. Since it differs from the said 1st Embodiment by the point which is set as the structure which can be attached or detached to the use flange 7, a different part is mainly demonstrated. The temporary stopper 2 is the same as that described above, and therefore, the configuration of the plug protection member 3 will be mainly described here.
In this embodiment, as shown in FIGS. 25 (a) and 25 (b), the stopper protecting member 3 has a groove-shaped cross section, and the stopper protecting member 3 is provided in the front-rear direction on both sides of the front plate 33 and its width direction. The side plate 34 for maintaining the distance is provided.
In the plug protection member 3 having such a configuration, a shape steel such as a channel steel by cold working or a channel steel by rolling by hot working, or a welded assemblage shaped steel (in the case of illustration) can be used. . The inner side of each side plate is disposed in close proximity to the side plate 9 in the drainage member 5, and the dimension between the side plates 34 is the dimension between the outside of the side plate 29 in the drainage member 5 and its welded portion. It is made to become slightly larger than.
In this embodiment, the drainage member 5 is surely penetrated into the ground in a state where the plug protection member 3 is closed in the lateral direction, so that it is ensured that earth and sand enter the drainage member 5 side. Can be suppressed.
Moreover, since the bending rigidity of the plug protection member 3 is remarkably improved only by providing the side plates 34 on both sides, the self-supporting property of the plug protection member 3 is improved, and the handleability of the plug protection member 3 is improved as a band plate. It is possible to improve compared to the case of the stopper protecting member, and the conveyance removal work becomes easy.
However, the plug protection member 3 of this form can correspond to a form in which the plug 12 is provided by providing a through hole in the side plate 29 of the drainage member 5. In this way, when the plug is provided on the side plate 29 in the drainage member 5, the plug protection member 3 having a wide width of the front plate 33 in the plug protection member 3 may be used. You may make it protect the side surface front-end | tip part of the stopper protection member 3 by providing a side surface front-end | tip protection member and a side surface locking part so that it may connect to the latching | locking part 20. FIG.
FIG. 24 shows a state in which the stopper protecting member is lifted and removed from the steel sheet pile main body after the temporary stopper 2 is appropriately removed from the state of FIG.

(Fifth embodiment)
FIG. 26 shows a ground driving member 1 with a drainage function provided with a drainage member and a plug protection member according to a fifth embodiment of the present invention. The fifth embodiment is a representative form for indicating that the temporary stopper 2 may be a plate steel plate. A trapezoidal steel plate is used for the temporary stopper 2, the temporary stopper 2 is disposed perpendicular to the plate portion of the ground driving member main body 6, and one side of the base end portion of the temporary fixing stopper 2 is the ground driving member main body 6. The front end of the temporary stopper 2 faces the upper surface of the plug protection member 3 and slightly protrudes forward from the plug protection member 3. The temporary stopper 2 is used.
When such a plate-like temporary fixing stopper 2 is used, the temporary fixing stopper 2 is struck in the left-right direction with a hammer or the like, and the temporary fixing stopper 2 can be easily bent so as not to interfere with the stopper protection member 3. By destroying the welded portion, it can be removed, and the operation of pulling out the stopper protecting member 3 is facilitated. Further, the plate-like temporary stopper 2 is an inexpensive member.

(Sixth embodiment)
27 to 29 show a ground driving member 1 with a drainage function provided with a drainage member and a plug protection member according to a sixth embodiment of the present invention. In this sixth embodiment, the drainage protection member 3 is not pulled out and removed, but is slightly lifted up so that the water passage holes 41 made of the respective through holes on the side of the closure protection member 3 are provided on the drainage member 5 side. This is a representative form that can be arranged to face a large number of stoppers 12.
In addition, what is necessary is just to provide many water flow holes in the side plate of the stopper protection member 3 at the same space | interval, when providing many stoppers in the side surface of the member 5 for drainage.
In the sixth embodiment, as shown in FIG. 32 or FIG. 33, a plate-like shape or the like is provided at the same interval as the arrangement interval of a large number of plugs 12 (or lateral holes of the plugs) provided on the drainage member 5 side. The plug protection member 3 is provided with water passage holes 41 at intervals in the width direction and the vertical direction, and the plate portion between the water passage holes 41 adjacent in the vertical direction may function as the plug protection portion 35. It is a representative form for showing.
In this embodiment, each water passage hole 41 of the stopper protection member 3 is provided at a position lower than the corresponding stopper 12 on the drainage member 5 side by a shift pitch P. FIGS. At the initial time shown in FIG. 29, the stopper protecting portion 35 between the water passage holes 41 faces the stopper 12 on the drainage member 5 side. The dimension between the water passage holes 41 adjacent to each other in the vertical direction is larger than the diameter of the water passage hole 41 and larger than the front outer diameter dimension of the plug 12.
Although illustration is omitted, the amount of displacement between the plug protection member 3, the center of the water passage hole 41 and the center of the plug 12 of the drainage member 5 is the same as that of the plug protection member 3, the drainage member 5 or the ground driving member main body 6. The upper end portion is appropriately displayed as a shift display line, and the upper end portion (or the shift display line) of the plug protection member 3 is aligned with the shift display line on the drainage member 5 or the ground driving member main body 6 side. The center of the stopper protection member 3, the water passage hole 41, and the center of the stopper 12 of the drainage member 5 can be matched in the vertical direction.
When the ground driving member with drainage function 1 having such a drainage member and a plug protection member is inserted into the ground, the plug protection part 35 is inserted into the ground while protecting the plug 12 on the drainage member 5 side. The After the ground driving member 1 with drainage function provided with the drainage member and the plug protection member is inserted into the ground, the temporary stopper 2 is removed as shown in FIG. 30, and the plug protection member is removed as shown in FIG. 3 is slightly lifted by a construction machine by a displacement pitch P so that each water passage hole 41 is opposed to the lateral hole of the plug 12 on the drainage member 5 side, and the removed temporary fixing stopper or an appropriate connecting member is positioned. As the holding member 36, the position holding member 36 is fixedly connected to both the ground driving member main body 6 and the plug protection member 3 by welding or the like, and the level of the plug protection member 3 is determined by the ground driving member main body 6. The construction of the ground driving member 1 with the drainage function provided with the drainage member and the plug protection member is completed with the position held constant.
In such a form, the stopper protecting member 3 needs to be drilled, but the removal and transportation cost of the stopper protecting member 3 is eliminated, and the stopper pulling member 3 is not completely pulled out. Easy and easy.
The distance in the vertical direction of the plug 12 provided in the drainage member 5 and the distance between the water passage holes 41 provided in the plug protection member 3 do not have to be constant as shown in FIG. 32, as shown in FIG. A difference may be provided in the arrangement interval in the vertical direction, and the upper part may be a dense interval, and the lower side other than the upper part may be a coarse interval. As shown in FIGS. 53 and 54, the ground or soft ground requiring liquefaction countermeasures is provided with a drainage layer 54 composed of gravel 53 or the like in the upper layer portion, and collects and drains intensively. What is necessary is just to make it arrange | position closely the arrangement | positioning space | interval of the upper water flow hole 41 via the stopper protection part 35, and to set the arrangement | positioning space | interval of the upper stopper | plug 12 of the member 5 for drainage.

FIG. 34 shows a form in which a rod-like spacer 10 made of round steel or the like is fixed to the stopper protective member 3 having a plate-like steel plate by welding on both sides in the left-right direction. In such a plug protection member 3, the drainage in the form of having a spacer on the widthwise central portion side (center between widthwise plugs) even when no spacer is provided on the drainage member 5 side or even if a spacer is provided. It is set as the form applicable to the member 5 for use.
As a modified form, a bar-like spacer 10 made of round steel or the like may be fixed by welding to the central part in the left-right direction of the stopper protection member 3. In this case, no spacer is provided on the drainage member 5 side. Therefore, the structure on the drainage member 5 side is simplified, and there are advantages that the spacer 10 can be collected and reused together with the stopper protection member 3 by being provided on the stopper protection member 3 side.

(Seventh embodiment)
36 to 38 show a ground driving member 1 with a drainage function provided with a drainage member and a plug protection member according to a seventh embodiment of the present invention. This seventh embodiment uses the drainage member 5 or the plug protection member 3 of the above embodiment to indicate that the ground driving member main body 6 may be a steel pipe sheet pile 38 having joints 37 on both sides. This is a representative form. The joint 37 may be replaced with another known joint.
In the seventh embodiment, members having the same structure as that shown in FIGS. 21 to 23 are provided at the front and rear portions of the circumferential side plate 39 having a circular cross section in the ground driving member main body 6 made of a steel pipe. Yes. The structures of the drainage member 5, the plug protection member 3, the side shake / forward shake prevention member 26 and the like are the same as those shown in FIGS. 21 to 23. The tip protection member 19 is fixed to the outer peripheral surface of the steel pipe 40 by welding in correspondence with the arcuate circumferential side plate 39 of the steel pipe, and the tip protection member 19 is curved in an arc shape and provided with a recess in the arc shape. .
FIGS. 39 to 41 show a state in which the detachable temporary fixing stopper 2 is removed and the stopper protecting member 3 is pulled out from the states of FIGS. 36 to 38.

(Eighth embodiment)
42 to 44 and 47 show a ground driving member 1 with a drainage function provided with a drainage member and a plug protection member according to an eighth embodiment of the present invention. The eighth embodiment is a representative form for indicating that a steel pipe pile 42 may be used as the ground driving member main body 6 using the drainage member 5 or the plug protection member 3 of the above embodiment.
In the eighth embodiment, as in the seventh embodiment, the front and rear portions of the circumferential side plate 39 having an arc-shaped cross section in the ground driving member main body 6 made of a steel pipe are configured as shown in FIGS. A member having a similar structure is provided. The structures of the drainage member 5, the plug protection member 3, the side shake / forward shake prevention member 26 and the like are the same as those shown in FIGS. 21 to 23. The tip protection member 19 is fixed to the outer peripheral surface of the steel pipe 40 by welding in correspondence with the arcuate circumferential side plate 39 of the steel pipe, and the tip protection member 19 is curved in an arc shape and provided with a recess in the arc shape. .
FIGS. 45 to 46 show a state in which the temporary stopper 2 in a detachable form is removed and the stopper protecting member 3 is pulled out from the states of FIGS. 43 to 44.

48, the side plates 34 on both sides of the plug protection member 3 are formed so that a gap 43 can be formed between the back surface of the front plate 33 of the plug protection member 3 and the plug 12 of the drainage member 5. This is a form in which the width dimension is widened so as to correspond to the circumferential side wall of the ground driving member main body 6 having a circular cross section.
Similarly, the length of the side plate 28 serving as a side shake prevention portion in the side shake / forward shake prevention member 26 is lengthened so that it can correspond to the circumferential side wall of the ground driving member main body 6 having a circular cross section. It is a form.

  In FIG. 49, a large number of ground driving members 1 with a drainage function provided with the drainage member and the plug protection member of the seventh embodiment are engaged with each other so as to penetrate into the ground requiring softening measures or soft ground. Moreover, the plane form which pulled out and removed the stopper protection member 3 and constructed | assembled the underground continuous wall 44 with a drainage function is shown. Thus, if the underground continuous wall 44 with a drainage function is constructed, the groundwater in the front ground can be drained to improve the ground.

  In FIG. 50, a number of ground driving members with drainage function 1 including the drainage member and the plug protection member of the eighth embodiment are inserted into the ground or soft ground where liquefaction measures are required at intervals, and the plugs are plugged. The plane form which pulled out and removed the protection member 3 and constructed the pile row | line | column 45 with a drainage function is shown. Thus, if the pile row | line | column 45 with a drainage function is constructed | assembled by linear or zigzag arrangement | positioning or other well-known arrangement | positioning forms, groundwater in the front ground can be drained and ground can be improved.

  In the above-described embodiment, a configuration in which a large number of plugs 12 are provided on the front surface side of the drainage member 5 having a cross-sectional groove shape. However, when the invention is carried out, a large number of plugs 12 are provided only on the side surface side of the drainage member 5. Can be dealt with by using the groove protection plug protective member 3, and when the plug protection member 3 is slightly lifted, the groove protection plug protective member 3 and the side plate of the stopper protecting member 3 may be provided with a penetrating horizontal hole corresponding to the stopper interval.

In the embodiment, the drainage member 5 having a cross-sectional groove shape is provided on the ground driving member main body 6. However, when the present invention is carried out, the drainage member 5 is not limited to the cross-sectional groove shape but has a rectangular cross section. In this case, the stopper protecting member 3 for securing the filter function of the stopper provided with the filter is formed into a shape such as a rectangular shape or a circular shape of the drainage member 5. Correspondingly, a cross-sectional groove shape, a semicircular cross-sectional shape, or the like may be used.
When the drainage member has an open cross section such as a groove-shaped cross section or a semicircular cross section, the drainage member 5 is fixed to the ground driving member main body 6 by continuous welding. Since both sides of the drainage member 5 are liquid-tightly fixed, there is no gap between both sides of the drainage member 5 and the ground driving member main body 6, so that no water enters from both sides of the drainage member 5. The space in the drainage member 5 is not narrowed by the intrusion of earth and sand.
The drainage member 5 may be in the form of a closed cross section having a rectangular or circular cross section. For example, in the case of a rectangular cross section or a circular cross section, the drainage member 5 is placed on the ground driving member body 6 in the longitudinal direction. It may be fixed with intermittent welding in a zigzag pattern or with bolts or the like at intervals, or may be made non-welded in anticipation of the restraining effect of the upper stopper, the side shake prevention member, and the front shake prevention member .

  In the said embodiment, although the form which provided the connection part 14 which consists of a penetrating horizontal hole was shown in the upper end part of the stopper protection member 3, when implementing this invention, illustration is shown in the upper end part of the stopper protection member 3. Although omitted, the upper end portion of the steel plate is overlapped so as to protrude from the upper end portion of the plug protection member 3, the lower end portion of the steel plate is fixed to the plug protection member 3 by field welding, and the upper end portion of the steel plate is driven by a vibration-type sheet pile. The stopper protecting member 3 may be pulled out while being held by a hydraulic clamp equipped with a hydraulic jack in the machine.

  In each of the embodiments described above, the stopper 12 is made of a material that is somewhat flexible, such as a synthetic resin material, and the filter protection member is a filter such as a nylon filter when transporting the ground driving member body 6 with a drainage function. For example, the filter protection member 17 may be manufactured integrally with the plug 12 or attached to the plug as a screw joint. As a material of the stopper, for example, a synthetic resin such as vinyl chloride resin, polyethylene resin, nylon resin, polypropylene resin, or rubber such as hard rubber may be used.

  The filter protection member 17 is provided with a small hole and has water permeability, and is formed into a small hole such as a circle or a square. The filter 16 is protected by a filter protection member 17 so that it is not damaged as much as possible by friction with sand having a relatively large particle size (rough sand). The diameter and mesh of the small holes of the filter protection member 17 are targeted for rough sand. It is set smaller than the size of. As a material of the filter protection member, for example, a synthetic resin such as vinyl chloride resin, polyethylene resin, nylon resin, polypropylene resin, or hard rubber rubber may be used.

  As the filter 16, a stainless steel filter, a synthetic fiber resin filter, or a synthetic resin filter may be used. For example, warp knitted fabrics such as nylon, polyethylene monofilament, and polyester, and nonwoven fabrics such as polypropylene and polyester fibers can be used. Alternatively, a filter may be formed by combining synthetic fibers, synthetic resins, or combining or overlapping synthetic fibers and synthetic resins.

Non-woven fabric as a filter or mesh or gap such as a stainless steel filter is a ground that may be liquefied, and the soil particle size is particularly large, and the ground that is relatively uniformly distributed is as large as 1 to 3 mm. Although it is possible to set, there are few such grounds, and it is better to set smaller than about 1-3 mm in the general ground with the possibility of liquefaction. Further, it is generally desirable that the filter is thinner in order to prevent clogging.
In addition, when using a stainless steel filter, it is necessary to take measures against contact corrosion of different metals.

1 Ground driving member with drainage function equipped with drainage member and stopper protection member 2 Temporary stopper (upper stopper)
3 Plug protection member 4 Lifting rope 5 Drainage member 6 Ground driving member body 7 Connection flange 8 Web 9 Leg (drainage member)
10 Spacer 11 Front plate (drainage member)
12 Plug 13 Protruding part 14 Connecting part 15 Through hole (drainage member)
16 Filter 17 Filter protection member 18 Front end side blocking plate 19 Front end protection member 20 Locking portion 21 Groove 22 Side shake prevention member 23 Front shake prevention member 24 Lower portion stopper 25 Ground 26 Side shake and forward shake prevention member 27 Front belt Plate 28 Side plate 30 Head bolt 31 Long nut 32 Through hole 33 Front plate (plug protection member)
34 Side plate (plug protection member)
35 Plug protection portion 36 Position holding member 37 Joint 38 Steel pipe sheet pile 39 Circumferential side face plate 40 Steel pipe 41 Water passage hole 42 Steel pipe pile 43 Gap 44 Underground continuous wall with drainage function 45 Pile row with drainage function 46 Ground with drainage function Medium steel sheet pile wall 50 Steel sheet pile 51 with drainage function Steel sheet pile 52 Drainage channel 53 Gravel 54 Catchment and drainage layer

Claims (16)

A drainage member that forms a drainage channel along the longitudinal direction of the ground driving member main body is provided in the ground driving member main body, the draining member has a plurality of holes, and has a through hole in the axial direction. In the ground driving member with drainage function in which plugs having filters in the holes are respectively attached to the holes, the plug protection for ensuring the filter function so as to cover the front side of a number of plugs having filters in the drainage member. A member is arranged, the stopper protecting member is locked to the ground driving member, and a hole is provided to penetrate at the same arrangement interval as the arrangement interval of many stoppers provided on the drainage member side. A structure for protecting a drainage member in a ground driving member with a drainage function, characterized in that the drainage function is provided.   The stopper protection member is restrained from moving in the vertical direction by a lower stopper provided to protrude to the lower portion of the drainage member and an upper stopper provided to protrude to the upper portion of the drainage member. The protective structure for a drainage member according to claim 1.   The said upper part stopper is provided in the ground driving member so that attachment or detachment is possible, The protection structure of the member for drainage in the ground driving member with a drainage function of Claim 2 characterized by the above-mentioned.   The stopper protecting member is prevented from shaking in the front-rear direction and / or the left-right direction by a shake preventing member disposed around the stopper protecting member and fixed to the ground driving member. The protection structure of the member for drainage in the ground driving member with a drainage function of item 1.   The protective structure for a drainage member in a ground driving member with a drainage function according to any one of claims 1 to 4, wherein the stopper protection member is a steel member such as a steel plate or a shape steel. A plurality of through-holes in the hole plug protection member provided, the position of the stopper provided in the drainage member, according to claim 1, characterized in that the position in the vertical direction are arranged offset The protection structure of the member for drainage in the ground driving member with a drainage function of any one of thru | or 5 . In order to prevent the plug protection member from interfering with the plug on the drainage member side, a spacer is provided continuously or intermittently on at least one of the drainage member and the plug protection member disposed opposite thereto. The drainage height according to any one of claims 1 to 6 , wherein the protruding height of the spacer in the plate thickness direction of the stopper protective member is at least the height dimension of the stopper locking portion. Protective structure for drainage member in ground drive member with function. The protection structure of the drainage member in the ground driving member with a drainage function according to any one of claims 1 to 7 , a steel sheet pile such as a grooved steel sheet pile, a hat-shaped steel sheet pile, a steel pipe sheet pile, a linear steel sheet pile, Or a ground driving member with a drainage function provided with a protective structure for a drainage member, which is provided in any ground driving member of a steel pile such as a steel pipe pile. A plug protection member for use in a ground driving member with a drainage function having the drainage member protection structure according to claim 8 , wherein the plug protection member is a steel member such as a steel plate or a section steel. Plug protection member. The stopper member according to claim 9 , wherein the stopper member is provided with a plurality of holes so as to correspond to a plurality of stoppers provided in the drainage member. A construction method of a ground driving member with a drainage function provided with a drainage member protection structure according to claim 8 , wherein the ground driving member with a drainage function provided with a drainage member protection structure is used for liquefaction countermeasures or consolidation. A construction method for a ground driving member with a drainage function, wherein the stopper protecting member is pulled out after penetrating into the ground requiring drainage measures. It is a construction method of the ground driving member with the drainage function provided with the protection structure of the drainage member according to claim 6 or 7 , wherein the ground driving member with the drainage function provided with the protection structure of the drainage member is used as a countermeasure against liquefaction. Or after having penetrated into the ground that requires countermeasures against compaction drainage, the plug protection member is pulled up slightly, and the numerous holes on the plug protection member side and the numerous plugs on the drainage member side are at the same level. A method for constructing a ground driving member with a drainage function, characterized by being opposed to each other. 13. The construction method for a ground driving member with a drainage function according to claim 12 , wherein the stopper protecting member is pulled up slightly, and then the ground driving member and the plug protecting member are connected by a connecting member. Of the components constituting the ground driving member with drainage function having the drainage member protection structure according to claim 8, a temporary stopper for attaching to the ground driving member main body, a draining member, a tip protection member, a lateral blur prevention member, and a front side The construction of the ground driving member with a drainage function according to any one of claims 11 to 13 , wherein a shaking preventing member, or a side shaking and forward shaking preventing member is attached to the ground driving member main body at the site. Method. A ground driving member with a drainage function according to any one of claims 11 to 14 , wherein a plurality of ground driving members with a drainage function are inserted continuously or intermittently in a lateral direction. Construction method of underground wall with drainage function, characterized by constructing underground wall with wall. It is constructed | assembled by the construction method of the underground wall with a drainage function of Claim 15 , The underground wall with a drainage function characterized by the above-mentioned.

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