JP5366583B2 - Civil engineering structure and method for constructing civil engineering structure - Google Patents

Abstract

The invention provides a civil structure, which can be used for the construction in the same way as the construction of using a unit for the civil structure even if no heavy machinery can be used and the unit for the civil structure can not be carried, wherein, the unit for the civil structure is formed by connecting block members with block-shaped reinforcing members by connecting members. A front natural stone (9) and a rear natural stone (10) are configured on an arrangement surface (3), an upper surface part (9a) of the front natural stone is connected with an upper surface part (10a) of the rear natural stone by a shaft member (12), thereby the unit for the civil structure, which is formed by connecting the front natural stone with the rear natural stone by the shaft member, is achieved. Then, broken stones (21) are filled between the front natural stone and the rear natural stone of the achieved unit for the civil structure to form a filling material layer, the series of process are repeated, thereby the steady and firm civil structure is obtained.

Description

 The present invention relates to a civil engineering structure and a construction method for a civil engineering structure.

 Recently, civil engineering construction units tend to be used in the construction of civil engineering structures such as revetments. As such a civil engineering unit, as shown in Patent Document 1, a lump member is attached to one end of a connecting member (extending member), and a lump retaining member (friction force increasing means) is attached to the other end. Things are known. When the civil engineering unit is used, a plurality of civil engineering units are prepared, the mass members are stacked, and the connecting members are arranged substantially in parallel. A force increasing means) is embedded in crushed stone or the like (filler). As a result, the holding state of the civil engineering structure unit can be strengthened based on the frictional force between the bulky retaining member and the crushed stone, and a stable and strong civil engineering structure can be constructed.

By the way, in each said civil engineering structure unit, a comparatively big lump member and a holding member are used, and the civil engineering structure unit which connected them is a heavy article. For this reason, when each civil engineering unit is sequentially stacked on the installation surface, each civil engineering unit is lifted and conveyed to the installation surface by using a lifting machine (large construction machine) such as a backhoe.

Japanese Patent Laid-Open No. 11-310913

However, depending on the construction site, there is a place where the lifting machine cannot be easily brought in. In such a case, each civil engineering unit cannot be lifted and conveyed to each installation position on the installation surface. For this reason, when the civil engineering building unit cannot be lifted and transported on the installation surface, it cannot be transported manually. Therefore, it is difficult to build a civil engineering structure by stacking a plurality of civil engineering structure units on the installation surface. ing.

The present invention has been made in view of the above circumstances, and the first technical problem thereof is that the massive member and the massive retaining member are connected together with the fact that a large lifting machine cannot be used. Even if it is a case where the unit for civil engineering structure connected through the member cannot be conveyed, it is providing the civil engineering structure equivalent to the case where it constructs using such a unit for civil engineering structure.
The second technical problem is to provide a construction method of a civil engineering structure that can easily construct the civil engineering structure.

In order to achieve the first technical problem, the present invention (the invention according to claim 1)
On the installation surface in front of the inclined base surface, a filler layer is disposed so as to face the inclined base surface, and a plurality of massive members are stacked as a surface layer on the surface side of the filler layer. Arranged on the back side of the filler layer in a state corresponding to the block members of each step, the block members and the block members of each step, the filler layer In civil engineering structures connected through crossing connecting members,
One end of the connecting member is connected to the upper surface of the massive member,
The other end of the connecting member is connected to the upper surface of the stay member ,
An insertion hole is formed at each end of the connecting member,
A mounting hole is formed in each upper surface portion of the massive member and the holding member,
One end portion of the connecting member and the upper surface portion of the massive member are connected with an insertion hole inserted into one end portion of the connecting member and an attachment hole of the massive member,
The other end portion of the connecting member and the upper surface portion of the retaining member are connected with an insertion hole inserted into the insertion hole of the other end portion of the connecting member and an attachment hole of the retaining member,
As a configuration. Preferred embodiments of the first aspect are as described in the second to sixth aspects.

In order to achieve the second technical problem, the present invention (the invention according to claim 7 ),
On the installation surface in front of the inclined base surface, a filler layer is disposed so as to face the inclined base surface, and a plurality of massive members are stacked as a surface layer on the surface side of the filler layer. Arranged on the back side of the filler layer in a state corresponding to the block members of each step, the block members and the block members of each step, the filler layer In the construction method of a civil engineering structure connected through a connecting member that crosses,
On the installation surface, the lump-shaped member of each step and the retentive member are stacked in a state of facing each other with a gap therebetween,
Each time the stacking of the lump member of each step and the holding member facing the lump member is completed, the upper surface portion of the lump member and the upper surface portion of the holding member are connected via a connecting member,
Filling a filler for forming the filler layer between the block member and the block member connected via the connecting member ,
When connecting the upper surface portion of the block member and the upper surface portion of the holding member via a connecting member,
As the connecting member, prepare an extending shape and have insertion holes at both ends thereof,
Then, the massive member and the holding member are arranged in a state of facing each other with a gap therebetween,
Next, each of the through-holes of the connection member when the connection member is spanned between the upper surface portion of the block-shaped member and the upper surface portion of the storage member, each upper surface of the block-shaped member and the storage member. In the facing part, each mounting hole is formed,
Next, for each mounting hole of the block member and the retaining member, each mounting anchor is driven while being inserted through each insertion hole of the connecting member.
As a configuration. The preferred embodiment of claim 7 is as described in claim 8 and the following.

According to the first aspect of the present invention, in the civil engineering structure in which the massive member and the retaining member of each step are arranged so as to sandwich the filler layer back and forth, one end portion of the connecting member is the upper surface portion of the massive member. Since the other end portion of the connecting member is connected to the upper surface portion of the retaining member, in the construction process of the civil engineering structure, the worker can store the massive member to be stacked and the opposing member facing the massive member. It is possible to easily connect the block member and the block member via the connecting member by performing a connecting operation on the member from above. Strictly speaking, this is the one in which attachment holes are formed in the substantially central portions of the opposing surfaces of the massive member and the holding member, and the ends of the connection members are connected to the respective attachment holes (lifted by a large lifting machine) Although it is not a normal civil engineering structure unit), the retaining member serves as a movement resistance means and exhibits a function of preventing the block-shaped member from falling off, and is substantially the same as the normal civil engineering structure unit described above. Functions as a civil engineering unit. For this reason, in the construction process of the civil engineering structure, even if a large lifting machine cannot be used, the massive members and the holding members are individually stacked and arranged, and the civil engineering construction unit is sequentially created, A plurality of civil engineering structure units can be stacked on the installation surface, and a filler layer is formed by filling a filler between the massive members and the holding members of the stacked civil engineering structure units. Thus, a stable and strong civil engineering structure similar to the conventional one can be constructed. Therefore, even when it is not possible to transport the civil engineering structure unit in which the massive member and the massive retaining member are connected via the connecting member due to the inability to use a large lifting machine, It is possible to provide a civil engineering structure equivalent to a case where construction is performed using a unit for a civil engineering structure.
In addition, a unit for a general civil engineering structure that is lifted and transported by a large lifting machine (a mounting hole is formed in the substantially central portion of the opposing surface of the block member and the retaining member, and the end of the connecting member is provided in each mounting hole. It is conceivable to create a revetment on the installation surface during construction of the revetment, but it is not easy to attach a connection member during construction of the revetment to the mounting hole in the approximate center of the opposite surface of the block member and the retaining member. It is difficult to make a unit for civil engineering structures of that type while building a revetment.

In addition to the above, an adhesive is used as a connection means, as well as the connection between the one end of the connection member and the upper surface of the block member, and the connection between the other end of the connection member and the upper surface of the retaining member. Compared to cases, the connection work can be performed quickly, and accordingly, the civil engineering structure can be quickly constructed.

According to the second aspect of the present invention, a common retaining member is provided as a retaining member corresponding to the plurality of massive members in each step, and the plurality of massive members in each step are connected to the common retaining member. Therefore, in the construction process of the civil engineering structure, it is only necessary to adjust the position of one common holding member for the plurality of massive members in each stage, The workability can be improved as compared with the case where the holding members corresponding to the respective massive members in each stage are individually adjusted in position.

According to the invention which concerns on Claim 3 , a common holding member is provided as a holding member corresponding to the several block member in each step | level, and the other end part of each connection member each extended from the several block member in each step is provided Since the common mounting anchor is inserted into the mounting hole of the common holding member while being inserted into the insertion hole of the other end of each connecting member with respect to the upper surface portion of the common holding member. In addition to reducing the burden of forming mounting holes (the number of mounting holes) and the driving load of mounting anchors (number of times of driving) with respect to the holding member, the number of mounting anchors used can also be reduced.

According to the invention which concerns on Claim 4 , since the filler layer is formed with the filling layer which consists of a stuffing stone, also in the water-permeable type civil engineering structure which can pass the waste_water | drain from an inclined foundation surface, the said Claims 1- The same effect as 3 can be obtained.

According to the invention of claim 5 , since the diameter of each retaining member is smaller than the diameter of each block member, and each retaining member is adjusted in height by the filling material, the retaining member and the retaining member The arrangement posture of the connecting member that connects the massive member facing the member can be adjusted, the connection work adjustment of the connecting member to the massive member and the retaining member, adjustment of the movement resistance force of the retaining member provided by the filler layer ( Adjustment of the horizontal distance between the massive member and the holding member) can be performed.

According to the invention which concerns on Claim 6 , since each holding member is height-adjusted so that a connection member may be in a substantially horizontal state, the connection operation | work of the connection member with respect to a block member and a holding member can only be facilitated. Alternatively, the horizontal distance between the massive member and the holding member can be maximized under the length of the connecting member, and the movement resistance of the holding member provided by the filler layer can be maximized. For this reason, it is possible to improve the reliability with respect to preventing the massive member from dropping forward.

According to the seventh aspect of the present invention, on the installation surface, the lump member and the holding member of each step are stacked in a state of facing each other with a space therebetween, and each lump member of each step and the lump member are opposed to each other. Each time the stacking of the retaining member is finished, the upper surface portion of the massive member and the upper surface portion of the retaining member are connected via a connecting member, and between the massive member and the retaining member connected via the connecting member, Since the filler for forming the filler layer is filled, the civil engineering structure according to claim 1 can be easily obtained by the construction method.
In this case, each time the stacking of each block member and the holding member facing each block member is completed, the upper surface portion of the block member and the upper surface portion of the holding member are connected via the connecting member. The upper free space is used to perform a connecting operation from above on the lump-shaped members stacked and arranged, and the holding member facing the lump-shaped member, and the upper surface portion of the lump member and the upper surface portion of the holding member Can be easily connected via a connecting member.
Further, since the lump member and the retaining member are connected via the connecting member when the filler is filled, it is possible to suppress the movement of the lump member and the retaining member with the filling of the filler.
In addition to the above, the mounting hole can be formed at an appropriate position as the connecting position of the connecting member while considering the length of the connecting member. In addition, after that, since the mounting anchors are driven through the respective insertion holes of the connecting member while being inserted into the respective mounting holes at appropriate positions, the upper surface portions of the massive member and the holding member are connected to the respective end portions of the connecting member. Can be done quickly. For this reason, the civil engineering structure can be constructed accurately and quickly.

According to the eighth aspect of the present invention, the filling material is filled each time the connection of the connecting member to the upper surface portion of the massive member and the upper surface portion of the holding member facing the massive member is completed (step by step). Therefore, the filler can be filled while maintaining the massive member and the retaining member in the most stable state, and the construction work of the civil engineering structure can be reliably performed.

According to the invention of claim 9 , after filling the filler, the connecting member is connected to the upper surface portion of the massive member and the upper surface portion of the retaining member facing the massive member over a plurality of stacked stages. Since it is performed each time, the number of fillings of the filler can be reduced, and the civil engineering structure can be quickly constructed.

According to the invention which concerns on Claim 10 , a common holding member is prepared as a holding member corresponding to the plurality of massive members in each step, and the plurality of massive members in each step are connected to the common holding member. Therefore, it is only necessary to adjust the position of one common holding member for a plurality of block members at each stage, and the blocks corresponding to each block member at each stage. Compared with the case where the position of each member is individually adjusted, workability can be improved.

According to the eleventh aspect of the present invention, a common retaining member is prepared as a retaining member corresponding to the plurality of massive members in each step, and the plurality of massive members in each step with respect to the mounting hole of the common retaining member. Since the common mounting anchors are driven while being inserted into the respective insertion holes at the other end of each connecting member extending from each of the connecting members, not only the number of mounting anchors can be reduced, but also the burden of forming the mounting holes on the holding members (mounting) The number of holes) and the mounting burden (number of times of driving) of the mounting anchor can also be reduced.

According to the invention which concerns on Claim 12 , the diameter of each holding member is made smaller than the diameter of each lump member, and a connecting member is connected with respect to the upper surface part of a lump member and the upper surface part of the lapping member which opposes this lump member. Before the connection, the height of the upper surface portion of the holding member is adjusted by the filling material, so that the arrangement and posture of the connecting member can be adjusted, and the connecting work of the connecting member to the block member and the holding member is facilitated. Adjustment and movement resistance adjustment of the stay member (horizontal distance adjustment between the block member and the stay member) can be performed.

According to the invention of claim 13 , since the height of the upper surface portion of each retaining member is made substantially equal to the height of the massive member facing each retaining member, the arrangement of the connecting members can be made substantially horizontal. In addition to facilitating the connection work, the horizontal distance between the massive member and the retaining member is maximized under the coupling member (maximizing the resistance of the retaining member) to prevent the massive member from falling off. Can be prevented.

According to the invention which concerns on Claim 14 , since the filler is a stuffing stone, the construction method of the said civil engineering structure can be applied even if a filler layer consists of a water-permeable type.

According to the invention of claim 15 , since the filler is concrete, the construction method of the civil engineering structure can be applied even when the filler layer is a concrete layer.

According to the invention of claim 16 , since the connecting member is a shaft-like member, the connecting member can be made into a thin shaft-like member, and the filling of the filler can be carried out smoothly without being hindered by the connecting member. Can be done.

The longitudinal section explaining the revetment concerning a 1st embodiment. The top view which shows the shaft-shaped member which concerns on 1st Embodiment. The front view of FIG. Explanatory drawing explaining attachment of the shaft-shaped member with respect to a natural stone. Process drawing which shows a series of construction processes of the revetment which concerns on 1st Embodiment. Explanatory drawing explaining 1 process which concerns on 1st Embodiment. Explanatory drawing explaining the process of the continuation of FIG. Explanatory drawing explaining the process of the continuation of FIG. Explanatory drawing explaining the process of the continuation of FIG. Explanatory drawing explaining the process of the continuation of FIG. Explanatory drawing explaining installation of the front side natural stone of the 1st step | paragraph, and the back side natural stone corresponding to it. Explanatory drawing explaining 2nd Embodiment planarly. Explanatory drawing explaining 3rd Embodiment planarly.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, the code | symbol 1 shows the revetment as a civil engineering structure which concerns on embodiment. The revetment 1 is provided with an installation surface 3 below the inclined cut surface (for example, 1: 0.5) 2, and the upper side of the installation surface 3 is directed from the river W side to the cut surface 2. In this order, a massive member layer 4, a filler layer 5, and a retaining member layer 6 are provided.

 As shown in FIG. 1, a foundation concrete block 7 is installed on the installation surface 3, and a suction prevention sheet S is provided on the installation surface 3 and the cut surface 2 behind the foundation concrete block 7. It is laid. The foundation concrete block 7 extends only in the construction section in the extending direction of the river W (or the revetment 1) (in the direction orthogonal to the paper surface in FIG. 1), and the side walls 8 (see FIG. 11). An inclined support surface 7a is formed on the upper portion of the foundation concrete block 7, and the support surface 7a is inclined so as to face upward from the cut surface 2 toward the river W side. The suck-out prevention sheet S is provided in consideration of the fact that the revetment 1 according to the present embodiment is a type having water permeability, and the suck-out prevention sheet S provides earth and sand on the installation surface 3 and the cut surface 2. Sucking out is prevented.

 As shown in FIG. 1, the massive member layer 4 is configured in a state in which front natural stones (for example, crushed stones or cobblestones) 9 as massive members are sequentially stacked from a foundation concrete block 7. In each stage to be stacked, the front natural stone 9 constitutes a continuous row SL in the extending direction of the revetment 1 (in FIG. 1, the direction orthogonal to the paper surface), and the front natural stone row SL in the uppermost stage is The height is close to the upper end surface (slope) of the cut surface 2. Thereby, the front natural stone 9 (row SL) constitutes the surface layer 1 </ b> A of the revetment 1. At this time, the gradient of the surface layer 1 </ b> A (each front natural stone 9) is set in a range from an upright state to about 1: 1.0 (usually 1: 0.5). A mounting hole 9b (see FIG. 4) is formed in the upper surface portion 9a of each front natural stone 9.

 As shown in FIG. 1, the back member layer 6 has a rear natural stone (for example, crushed stone or cobblestone) 10 as a back member on the back side (right side in FIG. 1) of the block member layer 4. It is comprised in the state arrange | positioned one by one along the soil surface 2. FIG. Each rear natural stone 10 is provided corresponding to (opposite) each front natural stone 9, and the height of the upper surface portion 10 a of each rear natural stone 10 is the upper surface of each corresponding front natural stone 9. It is made substantially equal to the height of the part 9a. In the present embodiment, in order to facilitate the height adjustment, the diameter of the rear natural stone 10 is made smaller than the diameter of the front natural stone 9 (preferably, the diameter of the front natural stone 9 is about 300 mm. The rear natural stone 10 has a diameter of about 200 mm), and then, between each of the rear natural stones 10 adjacent to the upper, lower, left, and right sides, the interstitial stone 11 is appropriately bitten. ing. A mounting hole 10b (see FIG. 4) is also formed in the upper surface portion 10a of each rear natural stone 10.

 As shown in FIG. 1, the upper surface portion 9 a of each front natural stone 9 and the upper surface portion 10 a of the rear natural stone 10 corresponding to each front natural stone 9 are connected via a shaft-shaped member 12 as a connecting member. Are connected to each other. This constitutes a kind of civil engineering unit, and as shown in FIG. 1, this unit is stacked in a plurality of stages corresponding to the stacking of the front natural stones 9 and the like. Strictly speaking, this unit can be manufactured on the installation surface 3, and is a normal civil engineering unit that is lifted and transported by using a lifting machine (opposite surfaces of the block member and the block member). Unlike the case in which mounting holes are formed in the substantially central portions and the end portions of the connecting members are connected to the respective mounting holes (see, for example, FIGS. 10 and 11 of JP-A-11-310913), The upper surface portion 9a and the upper surface portion 10a of the rear natural stone 10 corresponding to each of the front natural stones 9 are connected via the shaft-like member 12, but the rear natural stone 10 serves as a movement resistance means. Thus, the front side natural stone 9 is prevented from falling off, and is substantially the same as the conventional civil engineering unit that is lifted and transported using a conventional lifting machine.

 As shown in FIGS. 2 and 3, each of the shaft-like members 12 includes a main body portion 13 extending linearly in a round bar state, and flat portions provided at both end portions (one end portion and the other end portion) of the main body portion 13. It comprises a portion 14 and an insertion hole 15 formed in the flat portion 14. As for this shaft-shaped member 1, the flat part 14 which is the one end part is connected with the upper surface part 9a of the front natural stone 9, and the flat part 14 which is the other end part is connected with the upper surface part 10a of the rear natural stone 10. Is supposed to. As this shaft-shaped member 12, the thing which gave galvanization or zinc aluminum alloy plating etc. to the iron bar etc. is used, and the full length is 30-100 cm, for example.

 As shown in FIG. 1, a mounting anchor 16 is used to connect each flat portion 14 (each end portion) of the shaft-like member 12 to the upper surface portion 9a (10a) of each natural stone 9 (10). ing. As shown in FIG. 4, the mounting anchor 16 is driven into the mounting holes 9 b (10 b) of the natural stones 9 and 10 while being inserted into the insertion holes 15 of the flat portions 14, thereby flattening the shaft-shaped member 12. The mounting anchor 16 according to the present embodiment secures a connecting relationship between the portion 14 and the natural stone 9 (10). The mounting anchor 16 according to the present embodiment includes a shaft portion 17 and a head portion 18 provided at a proximal end portion of the shaft portion 17. Is integrated. The shaft portion 17 has a diameter slightly smaller than that of the mounting holes 9b and 10b formed in the natural stones 9 and 10 and the insertion hole 15 of the shaft-shaped member 12, and the outer peripheral surface thereof has an axial direction. A large number (a plurality) of ridges 19 are sequentially formed in the circumferential direction so as to extend in the axial center direction of the shaft portion 17 from the central portion to the tip. The shaft portion 17 is formed with a curved portion 20 that is curved so that the shaft center of the shaft portion 17 bulges laterally between the central portion in the axial center direction and the tip. The amount of bulging of the bending portion 20 is such that when the tip of the shaft portion 17 is inserted into the mounting hole 9b (10b) of each natural stone 9 (10), the mounting hole 9b (10b) of each natural stone 9 (10). Is set to protrude outward in the radial direction. Therefore, when the shaft portion 17 is pushed into the mounting hole 9b (10b), the bending portion 20 is pushed open (small curvature state), and the shaft portion 17 is on the bulging side of the bending portion 20, the bending portion 20. On the opposite side of the bulge side, both outer portions of the curved portion 20 are engaged with the inner wall of the attachment hole 9 of the natural stone 8, so that the attachment holes 9 b (10 b) of each natural stone 9 (10) are engaged. Will be retained. In this case, the ridge 19 on the bulging side of the curved portion 20 bites into the inner wall of the mounting hole 9 of the natural stone 8, and the ridge 19 on the tip portion on the side opposite to the bulging side of the curved portion 20 Thus, the engagement area of the shaft portion 17 with respect to the inner wall of the mounting hole 9 is increased, and the rotation restriction of the shaft portion 17 with respect to the mounting hole 9 is strengthened. . Further, when the shaft portion 17 is pushed (driven) into the mounting hole 9b (10b), the protrusions 19 extend in the axial center direction of the shaft portion 17, so that the pushing (driving) resistance force at that time Is smaller than the case where the extending direction of each protrusion 9 is other than the axial direction of the shaft portion 17 (improvement in mounting workability of the mounting anchor 16). On the other hand, the head 18 of the mounting anchor 16 has a diameter larger than the diameter of each insertion hole 15 of the shaft-like member 12, and the head 18 has its shaft-like shape when attaching the shaft-like member 12 to the natural stone 8. A pressing force is applied to the member 12 and a function of preventing the shaft member 12 from coming off is exhibited.

 As shown in FIG. 1, the filler layer 5 is filled with crushed stones, chestnuts and the like (hereinafter referred to as crushed stones) 21 as stuffed stones between the stacked front natural stones 9 and rear natural stones. It is constituted by. As the crushed stone 21 or the like, those smaller than the front natural stone 9 and the rear natural stone 10 are used, and they are in mesh with each other. As a result, the filler layer 5 is disposed between the front natural stone 9 (bulk member layer 4) and the rear natural stone 10 (filler layer 5) in the front-rear direction. A forward movement resistance force is applied to the rear natural stone 10. As a result, each front natural stone 9 connected to each rear natural stone 10 via the shaft-like member 12 is restricted from moving forward.

As shown in FIG. 1, a top concrete layer 22 is provided on the upper end surfaces of the massive member layer 4, the filler layer 5 and the stay member layer 6. The top end concrete layer 22 covers the massive member layer 4, the filler layer 5 and the retaining member layer 6 from the upper side, and secures the top end surface (upper surface).
In addition, about the lower part side of 1 A of surface layers, rooting (backfilling) is performed after construction.

Such a revetment 1 is constructed (constructed) according to the process diagram shown in FIG.
First, as shown in FIG. 5 and FIG. 6, the cut surface 2 and the installation surface 3 are formed, and then the suction prevention sheet S is laid on the installation surface 3 and the cut surface 2. In addition, a foundation concrete block 7 is formed over the entire construction section of the revetment 1 on the installation surface 2, and side walls 8 (see FIG. 11) are formed on both sides of the foundation concrete block 7 in the extending direction. Further, in the present embodiment, the crushed stone 21 and the interstitial stone 11 are laid on the installation surface 3 (sucking prevention sheet S) between the cut surface 2 and the foundation concrete block 7 to form a base layer. .

 Next, a plurality of front natural stones 9 and a plurality of rear natural stones 10 are prepared, and a plurality of front natural stones 9 are formed as shown in FIGS. As shown in FIG. 2, the rear natural stones 10 corresponding to the front natural stones 9 of the first stage are arranged on the support surface 7a of the foundation concrete block 7 with a predetermined interval on the back side of the front natural stones 9. Open and arrange. At this time, each of the rear natural stones 10 is arranged along the cut surface 2 and filled with the padding stones 11, thereby adjusting the height and adjusting the posture stabilization for each of the rear natural stones 10. Is done. As a result, the rear natural stone 10 has the upper surface portion 10a whose height is substantially equal to the height of the upper surface portion 9a of the front natural stone 9, and the arrangement thereof is stabilized. Of course, when the natural stones 9 and 10 are arranged, the arrangement posture adjustment (orientation adjustment) is performed in consideration of the arrangement stability and the like. These series of operations are basically performed manually by workers.

When the installation of the row SL of the front natural stone 9 in the first stage and the row of the rear natural stone 10 corresponding to each front natural stone 9 in the first stage is completed, as shown in FIGS. 9 is connected to the upper surface portion 10 a of the rear natural stone 10 via the shaft-shaped member 12. This is because a civil engineering structure unit substantially equivalent to a normal civil engineering structure unit lifted and conveyed by a large lifting machine is created. In this case, the shaft-like member 12 is connected to the upper surface portion 9a of the front natural stone 9 and the upper surface portion 10a of the rear natural stone 10 in the upper free space of the front natural stone 9 and the rear natural stone 10. This is to make it possible to make effective use of the civil engineering structure unit by connecting work from above.
Specifically, first, the shaft-like member 12 is stretched over the upper surface portion 9a of the front natural stone 9 and the upper surface portion 10a of the rear natural stone 10, and the upper surface portion 9a of the front natural stone 9 and the rear natural In the upper surface portion 10a of the stone 10, a position suitable for the connection of the shaft-shaped member 12 (a position where the insertion hole 15 faces) is specified, and the attachment holes 9a and 10a are respectively formed using a drill or the like. When the attachment holes 9a and 10a are formed, the attachment anchors 16 are driven into the respective attachment holes 9a (10a) by the hammers 24 while being inserted into the respective insertion holes 15 of the shaft-like member 12 (also in FIG. 4). Reference), the front natural stone 9 and one end of the shaft-shaped member 12 are connected, and the rear natural stone 10 and the other end of the shaft-shaped member 12 are connected. At this time, since the height of the upper surface portion 9a of the front natural stone 9 and the height of the upper surface portion 10a of the rear natural stone 10 are substantially equal, the shaft-shaped member 12 is in a substantially horizontal state.

 When the upper surface portion 9a of each front natural stone 9 in the first stage and the corresponding upper surface portion 10a of each rear natural stone 10 are connected by the shaft-shaped member 12, the row of the front natural stone 9 in the first step As shown in FIGS. 5 and 9, crushed stones 21 and the like are inserted between the corresponding rear natural stones 10 and the like. This is because the filler layer 5 is formed in the range of the height of the first stage. For this reason, the input of the crushed stone 21 or the like is performed until the height of the upper surface portion 9a or the like of the front natural stone 9 at the first stage is reached. In this case, since the shaft-shaped member 12 is used as the connecting member, the filling (injection) of the crushed stone 21 and the like is inhibited from being hindered based on the narrow shape (small-diameter shape). In this case, the shaft-like member 12 connects the front natural stone 9 and the corresponding rear natural stone 10 to suppress the movement of the natural stones 9, 10. Even if crushed stones 21 are inserted in the meantime, the movement in the direction in which they are pushed open is suppressed.

 After filling the crushed stones 21 between the first row of natural stones 9 in front and the corresponding row of natural stones 10 in the rear side, the revetment 1 has a predetermined height (predetermined number of steps (uppermost)). ), The above-described series of steps are repeated. That is, as shown in FIG. 5, the next front natural stone 9 and rear natural stone 10 (rows) are stacked on the previous natural stone 9 and rear natural stone 10 (see FIG. 10). , A step of connecting the front natural stone 9 and the rear natural stone 10 via the shaft-like member 12, a crushed stone between the front natural stone 9 and the rear natural stone 10 connected via the shaft-like member 12, etc. The process of filling 21 is repeated sequentially. In the present embodiment, the step of filling the crushed stone 21 or the like is performed every time the step of connecting the front natural stone 9 and the rear natural stone 10 through the shaft-like member 12 is completed. This is because the front side natural stone 9 and the rear side natural stone 10 are filled with the crushed stone 21 or the like while maintaining the most stable state (so as not to collapse).

 When the above work is finished, the top concrete layer 9 is formed on the upper surface of the row of the front natural stones 9 at the uppermost stage, the row of the corresponding natural stones 10 on the rear side, and the like on the lower front side of the revetment 1 Rooting is applied. Thereby, the construction work of the said revetment 1 will be complete | finished and the revetment 1 shown in FIG. 1 will be obtained.

Therefore, in such a revetment 1 and its construction method, on the installation surface 3, the front natural stone 9 and the rear natural stone 10 are arranged facing each other with a space therebetween, and then the front side Since the shaft-like member 12 is stretched over the upper surface portions 9a and 10a of the natural stone 9 and the rear natural stone 10, and the connecting work (the driving of the mounting anchor 16 by the hammer 24) is performed from the upper side thereof, the upper free space The front natural stone 9 and the rear natural stone 10 can be easily connected via the shaft-shaped member 12 (production of a civil engineering structure unit). For this reason, even if it is a case where a large lifting machine cannot be used, the front natural stone 9 and the rear natural stone 10 are piled up individually (accumulation by an operator), and the upper surface part 9a of the front natural stone 9 Are connected to the upper surface portion 10a of the rear natural stone 10 via the shaft-shaped member 12 (by sequentially producing civil engineering units), a plurality of civil engineering units are provided on the installation surface 3. Can be stacked.

For this, it is conceivable to produce a normal civil engineering structure unit transported by a large lifting machine at the construction site (on the installation surface 3), but the normal civil engineering structure unit is a block member. Mounting holes are respectively formed in the substantially central portions of the opposing members facing each other, and the end portions of the shaft-shaped members are attached to the respective mounting holes (see Japanese Patent Application Laid-Open No. 11-310913, FIG. 10, FIG. 11, etc.) It is difficult to produce it on the construction site (installation surface 3) during the revetment construction process because it is not easy to attach the shaft-like member to the attachment hole in the substantially central portion of the opposite surface of the massive member and the retaining member. Is in the situation.

On the other hand, a crushed stone 21 or the like is filled between the front natural stone 9 and the rear natural stone 10 of the produced civil engineering building unit each time it is produced, and thereafter the revetment 1 is repeated by repeating this series of steps. Is constructed, the surface thereof is protected by the strong front natural stone 9 (the block member layer 4), and the axial member 12 is attached to the front natural stone 9 with respect to the forward drop of the front natural stone 9. Each of the rear natural stones 10 that are connected to each other is restrained by the forward movement resistance provided by the filler layer 5. For this reason, the said revetment 1 is equipped with the same stability and robustness as the case where it constructs | assembles using the unit for normal civil engineering structures conveyed using a large sized lifting machine.

FIG. 12 shows a second embodiment, and FIG. 13 shows a third embodiment. In each of the embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

In the second embodiment shown in FIG. 12, when a predetermined stage is constructed, a plurality of (in this embodiment, five) front natural stones 9 are connected to one common rear natural stone 10 via a shaft-shaped member 12. The connected parts are shown in a plan view. Specifically, each one end portion of the shaft-shaped member 12 is connected to the upper surface portion 9 a of each front natural stone 9, and each other end portion is overlapped with the upper surface portion 10 a of the common rear natural stone 10. It is connected. In this case, one common rear natural stone 10 is prepared for a plurality (five in the present embodiment) of the front natural stone 9, and the mounting hole 10b of the one common natural natural stone 10 is By driving the common attachment anchor 16 through the insertion hole 15 at the other end of each shaft member 12, the other end of each shaft member 12 is placed on the upper surface portion 10a of the common rear natural stone 10. To be linked. For this reason, it is only necessary to adjust the position of one common rear natural stone 10 with respect to the plurality of front natural stones 9. Compared with the case where it provides, workability | operativity can be improved. At the same time, it is only necessary to form the mounting holes 10a only on one common rear natural stone 10 per plural (in this embodiment, five) front natural stones 9, and the burden of forming the mounting holes 10a (mounting holes) The number of mounting anchors 16 can be reduced, and the number of mounting anchors 16 used can be reduced.

 In this embodiment, the same length is used as the shaft-shaped member 12, and the surface shape of the plurality of front natural stones 9 is arcuate when viewed from the upper side. The surface shape of the front natural stone 9 is used for a corner portion or the like. Of course, the shaft members 12 having different lengths may be used.

The third embodiment shown in FIG. 13 shows a structure in which one common rear natural stone 10 is provided per two front natural stones 9. By adopting such a configuration, while improving the workability (reducing the burden of forming the mounting hole 10a, the driving load of the mounting anchor 16, etc.), the surface shape of the plurality of front natural stones 9 is flat when viewed from above. can do.

Although the embodiment has been described above, the present invention includes the following aspects.
(1) In addition to natural stones, artificial stones, concrete blocks (including concrete glass and old concrete blocks), etc. should be used as massive members and retaining members.
(2) Apply the present invention not only to the revetment 1 but also to retaining walls.
(3) The retaining member layer 6 is configured by stacking only the rear natural stone 10 as the retaining member.
(4) Use concrete as the filler of the filler material layer 5.
(5) Every time after the front natural stone 9 and the rear natural stone 10 are stacked and the shaft-like member 12 is connected to them over a plurality of stages (for example, two stages or three stages), crushed stones as fillers, etc. 21 that you filling.
(6) A civil engineering structure unit in which a front natural stone 9 and a rear natural stone 10 are connected by a shaft-shaped member 12 when the material can be transported manually without using a lifting machine (large construction machine) such as a backhoe. Form it in advance and transport it for use.
(7) When the cut surface 2 cannot be formed with a steep slope, a backfilling material is filled between the holding member 6 and the cut surface 2.

 It is to be noted that the object of the present invention is not limited to what is explicitly described, but also implicitly includes providing what is substantially preferable or corresponding to what is described as an advantage.

1 Seawall (Civil engineering structure)
1A Surface layer 2 Cut surface (inclined foundation surface)
9 Front natural stone (bulk member)
9a Top side of front natural stone 10 Back natural stone (holding member)
10a Upper surface of rear natural stone 10b Mounting hole 11 Filling stone (filling material)
12 Shaft-shaped member (connecting member)
16 Mounting anchor

Claims (16)

On the installation surface in front of the inclined base surface, a filler layer is disposed so as to face the inclined base surface, and a plurality of massive members are stacked as a surface layer on the surface side of the filler layer. Arranged on the back side of the filler layer in a state corresponding to the block members of each step, the block members and the block members of each step, the filler layer In civil engineering structures connected through crossing connecting members,
One end of the connecting member is connected to the upper surface of the massive member,
The other end of the connecting member is connected to the upper surface of the stay member ,
An insertion hole is formed at each end of the connecting member,
A mounting hole is formed in each upper surface portion of the massive member and the holding member,
One end portion of the connecting member and the upper surface portion of the massive member are connected with an insertion hole inserted into one end portion of the connecting member and an attachment hole of the massive member,
The other end portion of the connecting member and the upper surface portion of the retaining member are connected with an insertion hole inserted into the insertion hole of the other end portion of the connecting member and an attachment hole of the retaining member,
Civil engineering structure characterized by that. In claim 1,
As a holding member corresponding to the plurality of massive members in each stage, a common holding member is provided,
The plurality of massive members of each step are individually connected to the common holding member via a connecting member,
Civil engineering structure characterized by that. In claim 1 ,
As a holding member corresponding to the plurality of massive members in each stage, a common holding member is provided,
The other end of each connecting member extending from each of the plurality of massive members in each step is inserted into the insertion hole in the other end of each connecting member with respect to the upper surface of the common holding member. It is attached by driving into the attachment hole of the common holding member while
Civil engineering structure characterized by that. In any one of claims 1 to 3
The civil engineering structure, wherein the filler layer is formed of a filler layer made of stuffed stones. In any one of Claims 1-4 ,
The diameter of each holding member is smaller than the diameter of each block member,
Each of the holding members is height-adjusted with a filling material,
Civil engineering structure characterized by that. In claim 5 ,
The civil engineering structure, wherein each of the holding members is adjusted in height so that the connecting member is in a substantially horizontal state. On the installation surface in front of the inclined base surface, a filler layer is disposed so as to face the inclined base surface, and a plurality of massive members are stacked as a surface layer on the surface side of the filler layer. Arranged on the back side of the filler layer in a state corresponding to the block members of each step, the block members and the block members of each step, the filler layer In the construction method of a civil engineering structure connected through a connecting member that crosses,
On the installation surface, the lump-shaped member of each step and the retentive member are stacked in a state of facing each other with a gap therebetween,
Each time the stacking of the lump member of each step and the holding member facing the lump member is completed, the upper surface portion of the lump member and the upper surface portion of the holding member are connected via a connecting member,
Filling a filler for forming the filler layer between the block member and the block member connected via the connecting member ,
When connecting the upper surface portion of the block member and the upper surface portion of the holding member via a connecting member,
As the connecting member, prepare an extending shape and have insertion holes at both ends thereof,
Then, the massive member and the holding member are arranged in a state of facing each other with a gap therebetween,
Next, each of the through-holes of the connection member when the connection member is spanned between the upper surface portion of the block-shaped member and the upper surface portion of the storage member, each upper surface of the block-shaped member and the storage member. In the facing part, each mounting hole is formed,
Next, for each mounting hole of the block member and the retaining member, each mounting anchor is driven while being inserted through each insertion hole of the connecting member.
The construction method of the civil engineering structure characterized by this. In claim 7 ,
The construction method for a civil engineering structure is characterized in that the filling material is filled each time the connection of the connecting member to the upper surface portion of the massive member and the upper surface portion of the holding member facing the massive member is finished. In claim 7 ,
The filling material is filled each time after the connection member is connected to the upper surface portion of the massive member and the upper surface portion of the holding member facing the massive member over a plurality of stacked stages. The construction method of the civil engineering structure characterized by this. In claim 7 ,
As a holding member corresponding to a plurality of massive members in each stage, a common holding member is prepared,
A plurality of massive members of each step are individually connected to the common holding member via a connecting member,
The construction method of the civil engineering structure characterized by this. In claim 7 ,
As a holding member corresponding to a plurality of massive members in each stage, a common holding member is prepared,
A common mounting anchor is driven while being inserted into each insertion hole at the other end of each connecting member extending from each of the plurality of massive members at each stage, with respect to the mounting hole of the common holding member,
The construction method of the civil engineering structure characterized by this. In claim 7 ,
As the retaining member, a member whose diameter is smaller than the diameter of the massive member,
Before connecting the connecting member to the upper surface portion of the massive member and the upper surface portion of the retaining member facing the massive member, the height of the upper surface portion of the retaining member is adjusted with a filler.
The construction method of the civil engineering structure characterized by this. In claim 12 ,
The construction method of the civil engineering structure characterized by making the height of the upper surface part of each said holding member substantially equal to the height of the block member facing each said holding member. In any one of claims 7 to 13,
The construction method for a civil engineering structure, wherein the filler is a stuffing stone. In any one of claims 7 to 13,
The construction method for a civil engineering structure, wherein the filler is concrete. In any one of claims 7 to 15,
The construction method for a civil engineering structure, wherein the connecting member is a shaft-shaped member.

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