JP5408067B2 - Mount for inclining piles and method for burying oblique piles using the mounts - Google Patents

Description

  [Technical Field] The present invention relates to a slant pile penetration base used when a pile, which is a foundation member for civil engineering and construction, is buried in an inclined posture on the ground, and a slant pile embedding method using the base.

  In the field of civil engineering and architecture, piles are buried in the ground as the foundation of structures. There are several types of piles and pile burial methods. For example, there is a rotary penetrating steel pipe pile method that penetrates the ground while rotating a tubular steel pipe pile. A tip wing formed in a predetermined shape is attached to the tip of the steel pipe that is the main body of the pile. By rotating the steel pipe pile, a propulsive force is generated in the tip wing in the ground, and the steel pipe pile can be penetrated deep into the ground.

  Steel pipe piles are basically buried with the depth direction of the ground as the longitudinal direction. In addition to being vertical, steel pipe piles may be buried with an inclination. A pile piled up vertically is sometimes called a direct pile, and a pile piled up with an inclination is called a diagonal pile. Diagonal piles can effectively suppress horizontal displacement that occurs during earthquakes, etc., and are sometimes used as the foundation of earthquake-resistant structures.

  Pile burial is performed by installing a penetration device such as a three-point pile driver or an all-around rotary machine on the ground in order to grasp, rotate and push (penetrate) the pile into the ground. Therefore, when burying a slant pile, it is necessary to incline the penetration device at a predetermined angle by some means and install it on the ground. For example, Patent Document 1 discloses a technique in which wedges stacked alternately are arranged below the penetration device, and the penetration device is inclined by removing one of the wedges. In other words, the penetrating device is tilted using the inclination of the wedge. Patent Document 2 discloses a technique in which telescopic jacks (total of four units) are installed on each leg portion of the penetrating device, and the penetrating device is inclined by adjusting the amount of stretching.

Japanese Patent No. 3737421 Japanese Patent No. 4084777

However, when a wedge-shaped mount is used as described in Patent Document 1, it is necessary to prepare a wedge for each inclination angle. In addition, there is a problem that it is necessary to arrange one wedge and a heavy machine for pulling it out only for the installation.
In addition, in the pedestal described in Patent Document 2, four telescopic jacks are required, and the production cost of the pedestal tends to increase. In addition, it was necessary to prepare a separate hydraulic device for individually extending and retracting the four jacks, which was expensive and troublesome.

  Therefore, in view of the above problems, the present invention provides an inclined pile penetration mount that can handle an arbitrary inclination angle, has a simple structure, and is easy to install the penetration device, and an inclined pile embedding method using the mount. The task is to do.

  The present invention will be described below. Here, for ease of understanding, the reference numerals shown in the drawings are added together, but the present invention is not limited thereto.

The invention according to claim 1 is an oblique pile penetrating base (10) for supporting the penetrating device (5) penetrating the pile (1) into the ground in a posture in which the pile is inclined with respect to the ground. A plate-like member having a plate-like substrate (11) provided with a hole (11a) through which a pile can pass, and provided with holes (13a, 14a, 15a) through which a pile can pass, and the angle between the other plate surface is a predetermined angle greater than 0 degrees, comprising at least one inclined body (13, 14, 15) is placed on one surface of the substrate, based on plate , inhibit engagement member the movement of the tilting member on the substrate (12) is provided by said tilting member provided so as to protrude from one surface of the substrate is abutted against, the engaging member is inclined A concave portion is formed at a portion that contacts the body, and a concave portion is formed at a portion of the inclined body that contacts the engaging member. Corresponding protrusion is provided to the one or more tilting member, by placing on the substrate engaged with the recess of the engagement member with the convex portion of the inclined italic, most with the lower surface of the substrate An inclined pile penetrating mount characterized in that an angle formed with an upper surface of an inclined body disposed above coincides with an inclination angle of a pile.

According to the second aspect of the present invention, in the inclined pile penetrating base (10) according to the first aspect, the engaging member (12) is positioned on the inclined body by placing the penetrating device. It also functions as a stopper for locking the plate-shaped alignment plate (8) to be removed.

The invention according to claim 3 is the oblique pile penetrating mount (10) according to claim 1, wherein the penetrating device is placed on the inclined body (15) arranged at the uppermost position for alignment. Further, a protruding stopper for locking a plate-like alignment plate placed on the inclined body is provided.

  Invention of Claim 4 was provided in the board | substrate (11) and the inclination body (13,14,15) in the mount (10) for slanting pile penetration as described in any one of Claims 1-3. The holes (13a, 14a, 15a) are long holes having the major axis in the direction of inclination of each of the substrate and the inclined body.

  Invention of Claim 5 installs the inclination body (13,14,15) of the mount for oblique pile penetration (10) as described in any one of Claims 1-4 on a board | substrate (11), The angle formed between the lower surface of the substrate and the upper surface of the uppermost inclined body is held at a predetermined angle (θ), and the penetrating device (5) is installed on the inclined body via the alignment plate (8). It is a method of burying slant piles including the process of

  The invention according to claim 6 is the oblique pile embedding method according to claim 5, wherein the pile (1) to be inserted is a steel pipe pile having a tip wing (3), and the steel pipe pile is rotated during the penetration. It is characterized by that.

  According to the present invention, there is provided a tilt pile penetrating mount that can handle an arbitrary inclination angle and can be easily installed in a penetrating pile, and a tilt pile embedding method using the mount, in accordance with the present invention. be able to.

It is the figure which represented typically the scene where a slant pile is embed | buried by the mount 10 for slant pile penetration concerning one embodiment. It is the top view and front view of a mount for slant pile penetration. It is the figure which represented typically the scene where a slant pile is embed | buried by the mount 10 'for slant pile penetration which concerns on a modification.

  The above-mentioned operation and gain of the present invention will be clarified from the following embodiments for carrying out the invention. Hereinafter, the present invention will be described based on embodiments shown in the drawings. However, the present invention is not limited to these embodiments.

FIG. 1 schematically shows a scene in which a penetrating device 5 is installed via an alignment plate 8 on an oblique pile penetrating base 10 according to one embodiment, and a steel pipe pile 1 is held here. It is a figure. FIG. 1 shows an example in which a steel pipe pile 1 is penetrated into the ground at an angle θ with respect to the vertical direction.
The penetration device 5 is a device for gripping, rotating, and pushing (penetrating) the steel pipe pile 1 into the ground, and the alignment plate 8 is arranged so that the penetration device 5 is aligned by placing the penetration device 5 here. It is the comprised plate-shaped member.
The steel pipe pile 1 is generally penetrated into the ground as follows. That is, the steel pipe pile 1 is provided with the pile main body 2 which is a main body, and the front-end | tip wing 3 arrange | positioned at the lower end. The steel pipe pile 1 is gripped by the penetrating device 5 tilted at an angle (θ) to be tilted. The steel pipe pile 1 held by the penetration device 5 is given a rotational force and a pushing force by the penetration device 5 and penetrates into the ground G. At this time, the penetration device 5 is tilted to a predetermined angle θ by being installed on the slant pile penetration base 10. Hereinafter, the slant pile penetration base 10 will be described in detail.

  FIG. 2 shows a plan view (FIG. 2 (a)) and a front view (FIG. 2 (b)) of the stake pile penetration base 10. The plan view is a view seen from the top of FIG. 1, and the front view is a view seen from the direction of FIG. Here, FIG. 2 is an example in which the upper surface of the oblique pile penetrating base 10 is inclined at an angle θ.

The oblique pile penetrating base 10 includes a substrate 11 and a plurality of inclined bodies 13, 14, 15.
The board | substrate 11 is a plate-shaped member used as the foundation of the mount 10 for oblique pile penetration. As can be seen from FIG. 2B, one surface of the substrate 11 and the other surface on the opposite side form an angle θ1. Further, the substrate 11 is provided with a circular hole 11a penetrating in the thickness direction. The hole 11a has a sufficient size so that the steel pipe pile 1 can penetrate through the inside even when the oblique pile is buried.

Further, an engagement member 12 is provided at an end portion on one surface side of the substrate 11. The engaging member 12 is a member provided so as to protrude from the surface of the substrate 11. That is, as can be seen from FIG. 2B, the engaging member 12 is configured to have a function of positioning and stopper by abutting inclined bodies 13, 14, and 15 described later.
Here, as can be seen from FIG. 2A, the surface of the engagement member 12 on the side of the hole 11a (the surface on the side where the hole 15a appears in FIG. 2A) has a slight depression in plan view. A recess 12a is formed on the surface. As a result, the inclined bodies 13, 14, and 15 can also be positioned in the longitudinal direction of the engaging member 12 (the vertical direction in FIG. 2A) and have a stopper function.

The inclined bodies 13, 14, 15 are plate-like members that adjust the angle of the oblique pile penetrating base 10. As can be seen from FIG. 2B, each of the inclined bodies 13, 14, and 15 has an angle of θ2, θ3, and θ4 with the other surface on the opposite side. These θ2, θ3, and θ4 are angles larger than 0 degrees, and may be the same angle or different angles. Finally, they are combined so that the angle formed by the upper surface and the lower surface of the stake pile penetration base 10 is θ.
The inclined bodies 13, 14, 15 are provided with circular holes 13 a, 14 a, 15 a penetrating in the thickness direction. The holes 13a, 14a, and 15a have a sufficient size so that the steel pipe pile 1 can penetrate through the inside even when the oblique pile is buried.

  Here, as can be seen from FIG. 2 (a) (only the inclined body 15 appears in FIG. 2 (a)), of the inclined bodies 13, 14, and 15, it is abutted against the engaging member 12 described above. The end portions are convex convex portions 13b, 14b, and 15b corresponding to the concave portion 12a. Thereby, the inclined bodies 13, 14, and 15 can be appropriately engaged with the recess 12a.

As will be described later, the penetrating device 5 is installed on the inclined pile penetrating base 10 via the alignment plate 8, but as shown in FIG. 1, by projecting the engaging member 12 upward, This may function as a stopper for the alignment plate 8. That is, even if the inclined pile penetration base 10 is inclined, the alignment plate 8 can be hooked so as to prevent the alignment plate 8 from slipping.
Alternatively, as shown in FIG. 3 showing a modified pile pile penetration base 10 ′, a stopper 16 may be provided on the upper surface of the uppermost inclined body (inclined body 15 in FIG. 3).

  Each component mentioned above of the slope pile penetration mount 10 is combined as follows. That is, the inclined bodies 13, 14, 15 are placed on the substrate 11 as necessary. At this time, the inclined body is selected such that the sum of θ1 to θ4 is θ. Therefore, the change in the inclination angle θ can be handled by adding, removing, or changing the inclined body, and various inclination angles can be obtained.

  At this time, since the inclined bodies 13, 14, 15 engage with the engaging member 12 and the recess 12 a of the engaging member 12, the positions thereof are firmly fixed, and misalignment or the like is prevented. . Therefore, it can be set as the stable slope pile penetration stand.

According to the stake pile penetrating base 10 as described above, the penetrating device 5 can be held at an arbitrary inclination angle as a whole, and its structure is simple.
Here, each of the above-described constituent members provided in the oblique pile penetrating base 10 has sufficient strength to support the penetrating device 5.

  The holes 11a, 13a, 14a, and 15a provided in the base plate 11 and the inclined bodies 13, 14, and 15 of the inclined pile penetration base 10 described above do not necessarily have to be circular, and may be elliptical or polygonal. Good. When the oblique pile penetrates into the ground, a wider space is required in the direction of the engaging member 12 and the holes 11a, 13a, 14a, 15a (the left-right direction in FIG. 2A). Therefore, the holes 11a, 13a, 14a, and 15a may be elliptical with the major axis in the direction along the inclined surfaces of the substrate 11 and the inclined bodies 13, 14, and 15, respectively.

  Further, in this embodiment, the engagement member 12 is provided on the substrate 11, and the inclined bodies 13, 14, and 15 are engaged with the engagement member 12, and positioning and movement are suppressed. However, the aspect for that is not limited to this. For example, it is possible to provide a mode in which positioning is provided by providing positioning holes in the substrate and the inclined body and matching the holes. It is also possible to inhibit the inclined body from moving through the holes through bolts or the like.

  Further, each of the substrate 11 and the inclined bodies 13, 14, 15 may be a single piece, or may be divided into two or more in consideration of ease of transportation, for example.

Next, the oblique pile embedding method using this will be described taking the oblique pile penetration base 10 as an example.
The inclined pile penetration base 10 is installed on the ground based on the position where the steel pipe pile 1 should be penetrated. At this time, the number of the inclined bodies according to the necessity is placed on the substrate 11 and is inclined at the same angle as the inclination angle of the steel pipe pile 1.
On the other hand, the penetration device 5 is installed on the alignment plate 8 placed on the ground in another place, and the steel pipe pile 1 is gripped.
The alignment plate 8, the penetrating device 5, and the steel pipe pile 1 combined in this manner are lifted by a crane or the like, and these are placed on the above-described oblique pile penetrating base 10. At this time, the alignment plate 8 may be hooked on the engaging member 12 to exhibit a stopper function (see FIG. 1).
However, the engaging member 12 is not necessarily required to have a stopper function, and the inclined body 15 arranged at the top of the inclined bodies, like the inclined pile penetrating base 10 ′ of the modification shown in FIG. 3. A protrusion-like stopper 16 for the alignment plate 8 may be provided on the plate.

In addition, the steel pipe pile 1 may be gripped by the penetrating device 5 at a place different from the oblique pile penetrating mount 10. The alignment plate 8 and the penetrating device 5 are disposed on the oblique pile penetrating mount 10. Then, the steel pipe pile 1 may be gripped.
After the installation as described above is completed, the penetration device 5 is operated to start the penetration of the slant pile.
As described above, the oblique pile embedding method using the oblique pile penetration mount 10 makes it possible to bury the oblique pile easily and accurately by inclining the penetration device 5.

  Although the above description demonstrated the example which rotates and penetrates a steel pipe pile, a pile is not limited to a steel pipe pile, Moreover, it is not limited to rotating and penetrating. That is, the inclined pile penetrating mount can be applied as a tilt pile penetrating mount other than the steel pipe pile and the rotating penetrating type.

DESCRIPTION OF SYMBOLS 1 Steel pipe pile 2 Pile main body 3 Tip wing 5 Penetration apparatus 8 Alignment board 10 Skew pile penetration base 11 Substrate 12 Engagement member 13, 14, 15 Inclined body 16 Stopper

Claims (6)

A tilt pile penetrating platform that supports a penetrating device for penetrating a pile into the ground in a posture in which the pile is inclined with respect to the ground,
It has a plate-like substrate provided with a hole through which the pile can pass,
A plate-like member provided with a hole through which the pile can pass, and an angle formed by one plate surface and the other plate surface is set to a predetermined angle larger than 0 degrees, and is placed on one surface of the substrate Comprising at least one inclined body,
The board suppresses engaging member the movement of the tilter on the substrate is provided by the tilting member is provided is abutted so as to protrude from one surface of the substrate,
The engaging member has a concave portion formed at a portion that contacts the inclined body, and a convex portion corresponding to the concave portion is provided at a portion of the inclined body that contacts the engaging member,
One or a plurality of the inclined bodies are placed on the bottom surface of the substrate by being placed on the substrate by engaging the concave portion of the engaging member with the convex portion of the inclined body. The inclined pile penetrating base characterized in that an angle formed with an upper surface of the inclined body coincides with an inclined angle of the pile. The engagement member functions as a stopper for mounting and positioning the penetrating device and locking a plate-shaped alignment plate placed on the inclined body. The mount for oblique pile penetration described. The inclined body arranged at the top is provided with a protrusion-like stopper for placing the penetrating device and aligning it, and for locking the plate-like alignment plate placed on the inclined body. The slant pile penetration stand according to claim 1, wherein   The said hole provided in the said board | substrate and the said inclined body is a long hole which makes each major axis the inclination direction of the said board | substrate and the said inclined body, The Claim 1 characterized by the above-mentioned. The mount for oblique pile penetration described. The angle between the lower surface of the substrate and the upper surface of the inclined body disposed on the uppermost surface of the inclined body penetrating mount according to any one of claims 1 to 4 is installed on the substrate. Is held at a predetermined angle,
A slant pile embedding method including a step of installing the penetration device on the slant body via an alignment plate.   6. The oblique pile embedding method according to claim 5, wherein the pile to be penetrated is a steel pipe pile having a tip wing, and the steel pipe pile is rotated during penetration.

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