JPH11166219A - Civil engineering structure unit, civil engineering structure and execution method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a civil engineering structure unit capable of being highly harmonized with execution efficiency, durability and strength. SOLUTION: A civil engineering structure unit is constituted of a concrete slab 11 having a cage-like filling material storage body 8 opened upward and exposing stones 12 to the front surface thereof so that the front wall 10 side of the filling material storage body 8 ensures durability and strength. Meanwhile, main side walls 21 and the rear wall 22 are constituted of wire netting from the viewpoint of ensuring good execution efficiency (familiarity efficiency), and the bottom wall 20 is constituted of resin net.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a civil engineering unit for use in constructing civil engineering structures such as seawalls, retaining walls, etc., a civil engineering structure constructed using the civil engineering building unit, and constructing the civil engineering structure. And construction methods for civil engineering structures.

[0002]

2. Description of the Related Art Some civil engineering structures such as seawalls and retaining walls are constructed by stacking civil engineering building units in multiple stages. As the civil engineering building unit, a unit having a basket-like packing material container whose upper side is opened and having a stone exposed at the front of the packing material container is used. The packing units are sequentially stacked, and each time the packing units are stacked, the packing material is filled in the packing material container in the civil engineering building unit. As a result, it is possible to withstand the earth pressure, and at the same time, it is possible to return to the natural environment at an early stage by selecting an appropriate one as the filling material. It can be harmonized with the landscape.

[0003] By the way, as such a unit for civil engineering construction, concretely, a unit in which the whole filling material container is manufactured integrally using concrete, or a basket is assembled by a wire mesh, and a plurality of stones are provided on the front surface of the basket. Are mounted so as to form a masonry pattern.

[0004]

However, in the case of using the former unit for concrete civil engineering construction, the unit for civil engineering construction itself has a considerable weight, so that not only the stacking is not easy, but also the construction is not easy. Due to the nature of the rigid body, when stacking, the conformability to the lower stage (construction surface) is poor, and when the construction of the foundation concrete is poor, etc., as the civil engineering building unit is stacked, it will tilt or become unstable. For example, there is a possibility that the desired stacked state cannot be obtained due to the collapse or the like. On the other hand, when the unit for the wire mesh civil engineering structure according to the latter is used, the pile construction can be easily performed based on the fact that the unit for the civil engineering structure itself is lightweight, and furthermore, the flexibility as a property of the wire mesh is reduced. Based on the above, the civil engineering building unit can be appropriately adjusted to a desired stacked state, but the wire mesh may not only deteriorate over time (corrosion, etc.), but may be unexpectedly formed on the front surface of the packing material container. There is a possibility that an external force acts, and it is desired to further increase the strength of the front side of the packing material container.

The present invention has been made in view of the above circumstances, and a first technical problem of the present invention is to provide a stackable civil engineering building unit capable of highly harmonizing workability, durability and strength. To provide. A second technical problem is to provide a civil engineering structure using the civil engineering building unit. A third technical problem is to provide a construction method of the civil engineering structure.

[0006]

According to the first aspect of the present invention, there is provided a basket-like filling container having an opening at an upper portion, wherein the filling material storage is provided. In the unit for civil engineering construction wherein the stone is exposed on the front surface of the body, the filling material container is formed by a concrete plate in which a front wall side of the filling material container exposes a stone on the front surface; The portion other than the front wall side of the material container is configured by a flexible sheet having water permeability.

[0007] Preferred embodiments of the first aspect are as described in the second, third, fifth to seventh, sixteenth and seventeenth aspects.

[0008] In order to achieve the first technical object, the invention according to claim 4 is characterized in that the concrete slab is exposed by using a concrete slab having a stone exposed on the front surface thereof and a flexible sheet made of resin. And a bottom wall extending from the lower surface to the rear side of the concrete slab.

In a preferred embodiment of the present invention, claim 5
7, 16 and 17.

[0010] In order to achieve the second technical object, in the invention of claim 8, the civil engineering building units are sequentially stacked, and each of the civil engineering building units is formed in a basket-like shape having an open top. In a civil engineering structure having a packing material container, the packing material is filled with the packing material, and the stone is exposed on the front surface of the packing material container. The container, the front wall side of the packing material container is formed of a concrete plate that exposes a stone on the front surface, and a portion other than the front wall side of the packing material container,
It is configured as a flexible sheet having water permeability.

Preferred embodiments of the invention are as described in claims 9, 10, 12, 16, and 17.

[0012] In order to achieve the second technical object, in the invention according to the eleventh aspect, the units for civil engineering structures are sequentially stacked, and each of the units for civil engineering structures is a concrete for exposing a stone to a front surface. A slab, and a bottom wall that extends from the lower surface of the concrete slab to the rear side of the concrete slab using a flexible sheet body, and a filling material is laid on each of the bottom walls. , And a civil engineering structure.

A preferred embodiment of the eleventh aspect is as described in the twelfth, sixteenth, and seventeenth aspects.

According to a thirteenth aspect of the present invention, there is provided a method for constructing a civil engineering structure by sequentially stacking civil engineering building units to construct the civil engineering structure. Units are sequentially assembled at the stacking position, and the assembly is performed by first laying a bottom wall made of a permeable sheet having water permeability on the lower surface of the stacking position. On the front end of the bottom wall, a concrete slab that constitutes the front wall with the stone exposed at the front is placed, and then a peripheral wall made of a permeable sheet having water permeability is placed behind the concrete slab. It is arranged on the bottom wall and connected to the concrete slab, the concrete slab, the peripheral wall and the bottom wall form a packing material accommodating space, and then the packing material is accommodated in the filling material accommodating space. There as in a configuration that.

[0015] A preferred aspect of the thirteenth aspect is as described in the fifteenth to seventeenth aspects.

In order to achieve the third technical object, the invention according to claim 14 provides a method for constructing a civil engineering structure by sequentially stacking civil engineering building units to construct the civil engineering structure. Units are sequentially assembled at the stacking position. First, a bottom wall made of a resin-made flexible sheet is laid on the lower surface of the stacking position. On the front end, a concrete slab that constitutes the front wall with the stone exposed on the front side is placed and held, and then the filling material is laid on the bottom wall.

A preferred aspect of the fourteenth aspect is as described in the fifteenth to seventeenth aspects.

[0018]

According to the first aspect of the present invention, since the front wall side of the filling container is formed of a concrete slab, the durability of the front wall of the most important filling container is improved. In addition to being able to improve the strength against external force, even if an unexpected external force acts on the front of the
Thus, the strength against the external force can be increased. On the other hand, since the portion other than the front wall side of the filling material container is constituted by a flexible sheet member having water permeability, when necessary, it is appropriately adapted to the construction surface based on its flexibility. It is possible to stack while correcting it to a desired state. For this reason, when building a civil engineering structure using the civil engineering building unit, workability, durability, and strength can be highly harmonized. Of course, the stone masonry pattern exposed on the front of the filling material container can be harmonized with the natural scenery, and based on the water permeability of the flexible sheet body, water can escape and plant growth can be achieved. Can be.

According to the second aspect of the present invention, the concrete slab comprises both the front wall of the filling container and the front side wall projecting rearward from the front wall. Since the peripheral wall other than both front side walls and the bottom wall are configured, it is possible to secure the durability and strength by forming a part of the side wall of the filling material container with concrete and ensure the durability, strength and Workability can be specifically harmonized in a preferable state. On the other hand, when priority is given to durability and strength, or when the volume of the filling material container may be reduced, the flexible sheet body is straddled only between the rear ends of both front side walls. Only the rear wall may be formed by the flexible sheet member, and the specification can be changed according to the situation while sharing the main parts.

According to the third aspect of the present invention, the concrete slab forms both the front wall of the filling container and the side wall protruding rearward from the front wall, and the flexible sheet member has both side walls. The rear wall that straddles the rear end of the slab and the bottom wall that extends further rearward from the concrete slab via the rear wall, so that the side walls of the filling container are also formed of concrete to improve durability and strength. As a result, durability and strength can be prioritized and harmonized with workability. On the other hand, when it is desired to improve the workability by improving the conformability, or to increase the capacity of the filling material container, the both side walls are also formed by the flexible sheet body, and the side walls of the concrete plate are flexed. The side wall of the conductive sheet may be continuous, and the specification can be changed according to the situation while sharing the main components. In addition, since the bottom wall extends further rearward through the rear wall, the backing material is placed on the bottom wall behind the rear wall, so that the concrete plate or the like can be prevented from slipping.

According to the fourth aspect of the present invention, the unit for civil engineering construction comprises a concrete slab having a stone exposed on the front side and a flexible sheet made of resin. Since the concrete slab is provided with the bottom wall extending rearward, the durability is improved by the concrete slab, and the concrete slab is strongly resistant to unexpected external forces. On the other hand, in the civil engineering building unit, since the portion other than the concrete plate is formed of the flexible sheet body, when necessary, the construction surface (or the lower civil engineering building unit) is determined based on the flexibility. ) Can be stacked while being corrected so as to be appropriately adjusted to), and a desired stacked state can be obtained. For this reason, when building a civil engineering structure using the civil engineering building unit, the workability, durability, and strength can be highly harmonized. Of course, in this case, the stone masonry pattern exposed on the front of the concrete slab can match the natural scenery. Moreover, since the flexible sheet body is made of resin, the resin flexible sheet body is
It will last semi-permanently without corrosion,
The resin-made flexible sheet body cooperates with the resin-made flexible sheet body of another civil construction unit to be stacked alone or on the upper stage based on the weight of the filling material piled thereon. Therefore, it is possible to prevent the concrete slab from falling down.

According to the fifth aspect of the present invention, since the positioning holes for the positioning pins are formed on each of the upper and lower surfaces of the concrete slab, when stacking the civil engineering building unit, the concrete slab is used for the vertically adjacent civil engineering building. By inserting the positioning pins into the positioning holes between the units, the civil engineering building units stacked vertically can be positioned and held together. For this reason, the units for civil engineering structures stacked up and down can be integrated as well as stacked in a desired state.

According to the invention of claim 6, the positioning hole is
Since at least one of the upper and lower surfaces of the concrete slab is formed in a plurality in the front-rear direction, when stacking the civil engineering building unit, simply
Positioning pins can be inserted into the positioning holes between the vertically adjacent civil construction units to position and hold the vertically stacked civil construction units with respect to each other. The stacking mode can be changed.

According to the invention of claim 7, the concrete plate is placed on the front end of the bottom wall, the positioning pin is inserted into the positioning hole on the lower surface of the concrete plate, and the positioning pin passes through the bottom wall. By inserting a positioning pin that penetrates the bottom wall into the positioning hole of the lower civil engineering building unit, not only can the positioning and holding of vertically adjacent civil engineering building units be performed, but the bottom wall can be easily held on the concrete plate become. For this reason, assembly can be simplified.

According to the eighth aspect of the present invention, the civil engineering building units are sequentially stacked, and each of the civil engineering building units has a basket-like filling material container having an upper opening.
In the civil engineering structure in which the packing material is filled with the packing material and the stone is exposed on the front surface of the packing material container, the packing material container of each civil engineering building unit is formed of the packing material container. Since the front wall side is constituted by a concrete plate that exposes a stone to the front surface, and the portion other than the front wall side of the filling material container is constituted by a flexible sheet having water permeability, The civil engineering structure can be constructed only by stacking the civil engineering building units according to 1 and filling the packing material in the packing material housing in each of the civil engineering building units. Therefore, it is possible to provide a civil engineering structure using the civil engineering building unit according to claim 1 described above.

According to the ninth aspect of the present invention, on the premise of the eighth aspect, the concrete slab comprises both a front wall of the packing material housing and a front side wall projecting rearward from the front wall. And the flexible sheet body has a peripheral wall other than the both front side walls,
Since the bottom wall is formed, the civil engineering structure can be constructed only by stacking the civil engineering building unit according to claim 2 and filling the filling material in the filling material container in each of the civil engineering building units. become. Therefore, it is possible to provide a civil engineering structure using the civil engineering building unit according to claim 2 described above.

According to the tenth aspect, on the premise of the eighth aspect, the concrete slab is provided with a front wall of the filling container,
A rear wall that straddles between the rear ends of the side walls, and both of the side walls projecting rearward from the front wall.
A bottom wall extending further rearward from the concrete slab via the rear wall, and a backing material is laid on the bottom wall behind the rear wall. While stacking such civil construction units,
The civil engineering structure can be constructed only by filling the filling material in the filling material container in each of the civil engineering building units. For this reason, the civil engineering structure using the civil engineering building unit according to claim 3 can be provided. Moreover, since the bottom wall extends further rearward through the rear wall, and the backing material is piled on the bottom wall behind the rear wall, the movement of the bottom wall is regulated based on the weight of the backing material, and the concrete slab and the like are provided. It is possible to prevent slipping.

According to the eleventh aspect of the present invention, the civil engineering building units are sequentially stacked, and each civil engineering building unit uses a concrete plate that exposes a stone on the front surface and a resin-made flexible sheet member. A bottom wall extending from the lower surface of the concrete slab to the rear side of the concrete slab, and a filling material is piled on each of the bottom walls. The civil engineering structure can be constructed only by stacking the units and stacking the packing material on the bottom wall of each civil engineering building unit. Therefore, it is possible to provide a civil engineering structure using the civil engineering building unit according to claim 4 described above.

According to the twelfth aspect, claims 8 to 1 are provided.
Assuming that 1 above, the positioning holes for the positioning pins are formed on each of the upper and lower surfaces of the concrete slab in each civil engineering structure, and the vertically adjacent units for the civil engineering structures have the positioning pins in the positioning holes in the both civil engineering units. Since the positioning pins are inserted and positioned, and the positioning pins penetrate the bottom wall of the civil construction unit which is relatively upper, not only can the positioning and holding of the vertically adjacent civil construction unit be performed, but also the bottom wall can be concreted. It can be easily held on the plate. For this reason, it is possible to provide a civil engineering structure that can not only simplify the assembly but also easily prevent the concrete plate or the like from slipping down.

According to a thirteenth aspect of the present invention, in the civil engineering construction method for building civil engineering structures by sequentially stacking civil engineering building units, each civil engineering building unit is sequentially assembled at the stacking position. First, a bottom wall made of a flexible sheet having water permeability is laid on the lower surface of the stacking position, and then a stone is exposed on the front surface of the front end of the bottom wall. Then, the lower surface of the concrete slab constituting the front wall is connected, and then a peripheral wall made of a flexible sheet having water permeability is arranged on the bottom wall behind the concrete slab and connected to the concrete slab. Forming a packing material storage space by the concrete plate, the peripheral wall, and the bottom wall, and then storing the packing material in the packing material storage space,
According to the method, not only the civil engineering structure according to the above-described claim 8 is obtained, but also when the civil engineering structure is constructed, the elements (parts) of the civil engineering building unit are transported to the stacking positions of the civil engineering building units. Therefore, compared to the case where a relatively large civil engineering building unit is transported, the transport to each stacking position can be facilitated. In addition, since the concrete slab can be independently moved as an element of the civil engineering building unit during assembly, the most important concrete slab can be easily positioned. Furthermore, for the first time at each stacking position, the elements of the civil engineering unit are assembled and there is no need to consider the transport of the finished product,
As in the case of transporting units for civil engineering structures as finished products, the bottom wall must be firmly connected to the entire lower surface of the surrounding wall, taking into account the hanging of the bottom wall and the difficulty of laying. Sex disappears. For this reason, assembling of the civil engineering building unit itself can be simplified.

According to the fourteenth aspect of the present invention, in the construction method of civil engineering construction for building civil engineering construction by sequentially stacking civil engineering construction units, each civil engineering construction unit is sequentially assembled at the stacking position. The assembling is performed by first laying a bottom wall made of a flexible sheet made of resin on the lower surface of the stacking position, and then exposing a stone on the front surface with respect to the front end of the bottom wall. The method according to claim 11, wherein the lower surface of the concrete slab constituting the wall is connected, and then the filling material is piled on the bottom wall. As well as obtaining the structure, the positioning of the concrete slab can be easily performed and the assembly of the civil engineering building unit itself can be simplified, as in the above-described claim 13. It will be.

According to the fifteenth aspect of the present invention, based on the thirteenth or fourteenth aspect, a concrete slab having positioning holes on upper and lower surfaces of the concrete slab is prepared, and the concrete slab is mounted on the bottom wall. Before placing, the positioning pin is inserted into the positioning hole of the civil engineering building unit below the bottom wall while the positioning pin is passed through the front end of the bottom wall, and is projected upward from the bottom wall. Then, the concrete slab is placed on the bottom wall while the positioning holes of the concrete slab are inserted into the locating pins. The slab can be integrated and the concrete slab can be connected to the bottom wall to prevent the concrete slab from sliding down based on the weight of the padding acting on the bottom wall. To become.

According to the sixteenth aspect of the present invention, the first to the first aspects are as follows.
Since the peripheral wall of the flexible sheet body is made of a wire mesh on the premise of any one of the above items 5, it is possible to secure favorable self-holding property while securing conformability with respect to the peripheral wall. In addition, it is possible to allow water to flow in and out of the slope by permitting the inflow and outflow of water, and to allow the roots of the plant to grow within the peripheral wall to allow the plant to grow.

According to the seventeenth aspect, claims 1 to 1 are provided.
6, the bottom wall of the flexible sheet member is made of a resin net, so that at least the resin net as the bottom wall can be kept semi-permanently to prevent the concrete plate from slipping down. In addition, the water can flow down using the eyes of the resin net, and the purifying function can be exhibited. In addition, when the positioning pins are used, the positioning pins are made to penetrate the bottom wall by using the eyes of the resin net, so that the concrete plate and the bottom wall can be easily integrated.

[0035]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, reference numeral 1
Is a revetment. This revetment 1 has a slope 2 with a step-like shape.
A suction-prevention sheet 4 is laid on the slope 2 and the bottom surface 3 so as to be along the slope 2, and the suction-prevention sheet 4 prevents suction of soil and the like. On the suction prevention sheet 4,
On the slope surface 3, a basket-shaped mat 5 filled with stuffing stones is laid. On the slope 2, the civil construction unit 6 uses a step-shaped slope surface shape in order from the basket-shaped mat 5 above. They are stacked in steps. The rows of the civil engineering building units 6 stacked in this manner are sequentially arranged in a horizontal direction (flow direction of a river or the like), and an embankment 7 is placed on the uppermost stage of the civil engineering building units 6. It has been subjected. Note that L indicates a water level.

Each of the civil engineering building units 6 has a structure shown in FIG.
As shown in FIG. 5, a cage-shaped filling material container 8 whose upper part is opened in a rectangular shape is used, and a filling material 9 is filled in each of the filling material containers 8.

The front wall 10 of the filling material container 8 in each of the civil engineering building units 6 is formed of a concrete slab 11. The concrete slab 11 is extended in the horizontal direction with a relatively thick plate shape, and a fossil stone (formed like natural stone by concrete) 12 as a stone is integrally exposed on the front surface thereof. Is formed. The artificial stones 12 are arranged in a masonry pattern, and a plurality of communication holes 13 are formed in the concrete plate 11 between the artificial stones 12 so as to resemble natural depressions. Edition 1
The front face and the rear face of 1 are to communicate with each other.

This concrete slab 11 is integrally provided with a pair of front side walls 14 on the rear surface. The pair of front side walls 14 protrude rearward at regular intervals on the inner side in the extending direction of the concrete slab 11, and the height of the pair of front side walls 14 is equal to the height of the concrete slab 11. And approximately the same height. The upper and lower end surfaces of each front side wall 14 are respectively formed on flat surfaces so as to be substantially flush with the upper and lower end surfaces of the front wall 10, and the concrete plate 11 is
It can stand up in a stable state. Also,
Recesses 15 are formed in the upper and lower end surfaces of each front side wall 14 halfway to the protruding tip, and the concrete plate 11 and the like are turned by the ropes and the like by the recesses 15 in both front side walls 14. It can be lifted, and when the concrete slab 11 is lowered onto the construction surface,
A rope or the like can be easily pulled out based on the recess 15.

As shown in FIGS. 3 and 5, a pair of left and right positioning holes 16 are formed in the upper end surface of the concrete slab 11, and the lower end surface of the concrete slab 11 is formed as shown in FIG. In addition, two pairs of left and right positioning grooves 17 and 18 are formed as a kind of positioning hole.
A pair of left and right positioning holes 16 are formed on the upper end surface of both front side walls 14 of the concrete slab 11 on the front end side of the recesses 15. The concrete plate 11
A female screw 16a is provided by being buried therein. Of the two pairs of left and right positioning grooves 17, 18, one pair of left and right positioning grooves 17 is formed on the lower end surface of the front wall 10 of the concrete slab 11, and the pair of left and right positioning grooves 17 is In the extending direction (left-right direction) of the concrete slab 11, it is located at the same position as the pair of left and right positioning holes 16 and extends in the extending direction of the concrete slab 11. The pair of left and right positioning grooves 18 in the other pair are formed on the lower end surfaces of both front side walls 14 of the concrete slab 11 on the tip side from the recesses 15. It is located at the same position as the pair of left and right positioning holes 16 in the extending direction of the slab 11 and extends in the extending direction of the concrete slab 11.

As shown in FIG. 5, bolts 19 as positioning pins are screwed into female screws 16a of a pair of left and right positioning holes 16 on the upper end surface of the concrete plate 11. The upper part of the bolt 19 projects upward from the front side wall 14,
The positioning groove 17 of the concrete slab 11 of the civil construction unit 6 stacked on the upper stage is fitted to the upper part of the bolt 19. On the other hand, a pair of positioning grooves 17 on the lower end face of the concrete slab 11 are provided.
Are to be fitted to bolts (not shown) projecting from the upper end surface of the concrete slab of the unit for civil engineering construction in the lower tier (cage-like mat in the lowermost tier). Thus, the concrete slabs 11 are properly stacked in a stepwise manner.

Each of the civil engineering building units has the structure shown in FIGS.
As shown in FIG. 3, a bottom wall 20 and the pair of front side walls 1 are provided.
4, a pair of main side walls 21 forming a side wall and a rear wall 22 are provided, and the side walls 14, 21 and the rear wall 22 are provided.
Constitutes a peripheral wall. The bottom wall 20 is formed of a sheet-like synthetic resin net.
Has flexibility. The bottom wall 20 has substantially the same length (width) in the extending direction of the concrete slab 11, and the bottom wall 20 is extended rearward from the lower end surface of the concrete slab 11 while maintaining the width. The rear end is provided with a bending portion 23 that bends to return to the front end side. Further, the bolt 19 penetrates through the front end of the bottom wall 20 using the eyes of the bottom wall 20, and the bottom wall 20 is connected to the concrete slab 1 via the bolt 19.
It is held at 1.

Each of the pair of main side walls 21 is formed of a wire mesh (for example, a welded wire mesh), and each front edge thereof is provided on the rear end face of each of the front side walls 14 using a connecting coil 24. Each is connected to the mounting portion 25. The rear wall 22 is also formed of a wire mesh (for example, a welded wire mesh). The rear wall 22 has the same length as the concrete slab 11 in the extending direction of the concrete slab 11, and the rear wall 22 has On the inner side in the direction, the rear end of the main side wall 21 is connected via a connecting coil 26. As shown in FIG. 8, the rear end (curved portion 23) of the bottom wall 20 is inserted into the lower end of the rear wall 22, and the outer end of the rear wall 22 is extended outside the rear wall 22. The rear wall 22 and the bottom wall 20 are connected by passing the stop pin 27 through the curved portion 23.

In the present embodiment, each of the civil engineering building units 6 includes a concrete slab 11, a main side wall 21, and a rear wall 2 on the inner side in the extending direction of the concrete slab 11.
2. The filling material container 8 is defined by the bottom wall 20,
On both ends of the concrete slab 11 in the extending direction, a half of another packing material container 11 is partitioned, and another packing material container 8 is formed in cooperation with another civil construction building unit 6 arranged in a row. It is supposed to be.

As the filling material 9 to be filled in each of the filling material containers 8, stone, waste concrete material, earth and sand, and the like can be appropriately selected. In the present embodiment,
In order to give the seawall 1 a water purification (purification) function in addition to the strength, and to enable the growth of plants, etc., natural stones (eg, chestnut stone) are filled in the respective filling material containers 8. Is supposed to be.

Next, a construction method for such a revetment will be described. The construction method of the revetment 1 is such that the civil engineering building units 6 are stacked, and specifically, in the stacking position (in the present embodiment), the civil engineering building units 6 are stacked. It is for assembling parts. That is, at each stacking position, first, as shown in FIG.
Bolts 19 are respectively screwed into a pair of left and right positioning holes 16 on one upper surface (the basket-shaped mat 5 in the lowermost stage), and the upper portions of the bolts 19 project from the upper surface of the concrete plate. Then, a bottom wall 20 made of a resin net is laid on the upper surface of the civil engineering structure unit 6 at the lower stage, and a bolt 19 is provided at the front end of the bottom wall 20 using its eyes. Is penetrated. Thereby, the bottom wall 2
0 is positioned and cannot be displaced.

Next, as shown in FIG. 5, the concrete slab 11 is placed on the concrete slab 11 in the lower stage, shifted slightly backward. At this time, concrete slab 1
The pair of left and right bolts 19
Are fitted, and the concrete slab 11 is properly positioned.

Next, as shown in FIG. 6, a main side wall 21 and a rear wall 22 made of a wire mesh are placed on the bottom wall 20, and
They are connected to the concrete slab 11 and the bottom wall 20. In this case, since the main side wall 21 and the rear wall 22 are relatively light, in this embodiment, the main side wall 21 and the rear wall 22 are connected with the connecting coil 26 in advance, and the integrated material is conveyed onto the bottom wall 20. The front edge of each of the main side walls 21 is connected to the rear end face (attachment portion) of each of the front side walls 14 of the concrete slab 11 by a connection coil 24, and the lower end of the rear wall 22 is connected to the bottom wall 20. Curved portion 23 at the rear end
Is penetrated, and a stopper pin 27 is passed between the curved portion 23 and the rear wall 22 to connect the bottom wall 20 and the rear wall 22 (see FIG. 8). As a result, the stuffing container 8 is formed by the concrete slab 11, the bottom wall 20, the main side wall 21, and the rear wall 22. Also, at this time, the other half of the packing material container 8 formed on the left and right sides of the concrete plate 11 is connected to another civil engineering building unit 6 arranged side by side, and another packing material container 8 is formed. You. Of course, instead of such an embodiment, as shown in FIG. 9, after laying the bottom wall 20 on the lower surface of the stacking position, the concrete slab 11, the main side wall 21, and the rear wall 22 are assembled and integrated in advance. You may make it set with respect to the bottom wall 20, the unit 6 for civil engineering structures of a lower stage.

Next, as shown in FIG. 7, each of the packing material containers 8 is filled with natural stone (churites), and the assembling of the steps there is completed. Then, such assembling is sequentially repeated, and the embankment is applied to the uppermost civil engineering construction unit to complete the construction of the revetment.

The civil construction unit used for the revetment 1 can easily change the specifications to construct a revetment different from the revetment 1. That is, when the specifications are different, the main side wall 21 (see FIG. 3) is omitted in the civil engineering building unit 6 as shown in FIG. Mounting part 2
5) with a connecting coil (not shown), so that the volume of the filling material container 8 can be reduced, and accordingly, the bottom wall 20 has a rear end 20a at the rear wall 22.
And extend further rearward.

The civil construction unit 6 having such specifications
Is used for seawall construction, as shown in FIGS. 11 and 12, the civil engineering building units 6 are sequentially piled up on the foundation concrete 28 with a constant gradient by bolts 19 or the like while aligning the front surfaces. The top-end concrete 29 and the embankment 7 are applied to the civil engineering structure unit 6 at the top. In this case, the rear end upper surface of each bottom wall 20 is disposed in a substantially horizontal state, and relatively rises with reference to the front end upper surface.
On the upper surface, in addition to the filling material 9, backing material (for example, stone) 3
Even if the metal wall is corroded and the peripheral wall 22 made of wire mesh is corroded, the concrete slab 11 existing therebetween is prevented from slipping down by the synthetic resin bottom wall 20 in the vertical relationship.

FIG. 13 shows a modification of the revetment (see FIGS. 11 and 12). In the revetment 1, as the backing material 30, concrete is laid on the rear end portion 20 a of each bottom wall 20, thereby improving workability and strength.

Although the embodiments have been described above, the present invention includes the following aspects. (1) The stone on the front of the concrete slab 11 is replaced with a pseudo stone to be a natural stone, and the natural stone is held on the front of the concrete slab 11. (2) A plurality of positioning holes 16 are provided on the upper surface of the concrete slab 11, and the position of the concrete slab 11 is positioned in the front-rear direction by selection. (3) In order to form the civil engineering building unit 6 with the minimum number of elements, the concrete slab 11 and the synthetic resin bottom wall 20 extending rearward from the lower end surface thereof are configured. (4) A road and a retaining wall of a park are constructed by using the civil engineering building unit 6 using the earth and sand as the filling material, and the soil and the sand in the civil engineering building unit 6 are used to grow the plant. And greening. (5) A bottom wall (resin net) having a desired length rearward according to the height of the concrete slab 11, soil conditions, and the like.
20 is appropriately selected. That is, when the height of the concrete slab is relatively high, or when soil conditions are not favorable for construction, etc., it is necessary to select a bottom wall 20 of a plurality of types prepared in advance, which has a long rearward length. . Thereby, the load of the filling material 9, the backing material 30, etc. can be increased, and the concrete slab 11 can be stabilized (preventing the concrete slab 11 from slipping down). (6) A bolt 19 having a head whose diameter is larger than that of the shaft (male thread) is prepared as a positioning pin, and a resin net as the bottom wall 20 is laid.
Look through the resin net 20, and then screw it into the female screw 16a in the positioning hole 16 in the lower stage (such as the civil engineering building unit 6). Thereby, bolt 1
Not only can the upper civil engineering structure unit 6 be positioned with the upper portion of the bolt 9, but also the resin net 20 can be reliably prevented from coming off with the head of the bolt 19, and the construction can be reliably performed. Become. (7) An insertion pin that is not screwed is used as a positioning pin. As a result, the operation can be simplified.

It is to be noted that the object of the present invention is not limited to the specified one, but also includes providing what substantially corresponds to what is described as preferred or advantageous.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a revetment as a civil engineering structure constructed using a civil engineering structure unit according to an embodiment.

FIG. 2 is a longitudinal sectional view showing the revetment of FIG.

FIG. 3 is a perspective view showing a civil engineering building unit according to the embodiment.

FIG. 4 is a view for explaining a method of constructing a revetment using the civil engineering building unit according to the embodiment.

FIG. 5 is a view for explaining the construction following FIG. 4;

FIG. 6 is a view for explaining the construction following FIG. 5;

FIG. 7 is a view for explaining the construction following FIG. 6;

FIG. 8 is an explanatory diagram illustrating connection between a rear end portion of a bottom wall and a rear wall.

FIG. 9 is a view showing a modification of the stacking construction.

FIG. 10 is a perspective view showing a civil engineering building unit in a state where specifications are changed.

FIG. 11 is an explanatory diagram showing a revetment as a civil engineering structure constructed using the civil engineering building unit shown in FIG. 10;

FIG. 12 is a longitudinal sectional view showing the revetment of FIG. 11;

FIG. 13 is a view showing a modification of the revetment shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Revetment 6 Unit for civil engineering structures 8 Packing material container 9 Filling material 10 Front wall 11 Concrete plate 12 Fake stone 14 Front side wall 16 Positioning hole 17 Positioning groove 18 Positioning groove 19 Bolt 20 Bottom wall 20a Bottom wall rear end 21 Main side wall 22 Rear wall 30 Backing material

Claims (17)

[Claims] 1. A unit for civil engineering construction having a cage-like packing material container whose upper side is open, and wherein a stone is exposed on a front surface of the packing material container, wherein the packing material container includes: The front wall side of the stuffing container is constituted by a concrete plate exposing a stone on the front surface, and the portion other than the front wall side of the stuffing container is constituted by a flexible sheet having water permeability. And a civil engineering building unit. 2. The flexible sheet according to claim 1, wherein the concrete slab forms both a front wall of the filling material container and a front side wall protruding rearward from the front wall. The body is a peripheral wall other than the both front side walls,
A unit for civil engineering construction, comprising a bottom wall. 3. The slab according to claim 1, wherein the concrete slab comprises both a front wall of the filling material container and a side wall projecting rearward from the front wall. A rear wall straddling between rear ends of the both side walls, and a bottom wall extending further rearward from the concrete slab via the rear wall. 4. A concrete slab that exposes a stone on a front surface thereof, and a bottom wall extending from a lower surface of the concrete slab to a rear side of the concrete slab using a resin-made flexible sheet body. A unit for civil engineering construction characterized by the above. 5. The civil engineering building unit according to claim 1, wherein positioning holes for positioning pins are formed on upper and lower surfaces of the concrete slab. 6. The civil engineering building unit according to claim 5, wherein a plurality of the positioning holes are formed in at least one of the upper and lower surfaces of the concrete slab in the front-rear direction. 7. The concrete plate according to claim 5, wherein the concrete plate is placed on a front end of the bottom wall, a positioning pin is inserted into a positioning hole on a lower surface of the concrete plate, and the positioning pin connects the bottom wall. A unit for civil engineering structures, penetrating therethrough. 8. The civil engineering building units are sequentially stacked, and each of the civil engineering building units has a cage-like filling material container having an upper opening, and fills the filling material into the filling material container. In the civil engineering structure, wherein the stone is exposed on the front surface of the packing material container, the packing material container of each of the civil engineering building units has the front wall side of the packing material container exposing the stone on the front surface. A civil engineering structure comprising a concrete plate, wherein a portion other than the front wall side of the filling material container is configured by a flexible sheet having water permeability. 9. The flexible sheet according to claim 8, wherein the concrete slab forms both a front wall of the filling material container and a front side wall protruding rearward from the front wall. The body is a peripheral wall other than the both front side walls,
A civil engineering structure comprising a bottom wall. 10. The slab according to claim 8, wherein the concrete slab comprises both a front wall of the filling material container and a side wall protruding rearward from the front wall. A rear wall that straddles the rear ends of the side walls, and a bottom wall that extends further rearward from the concrete slab via the rear wall, on the bottom wall, behind the rear wall. Civil engineering structures characterized by the inclusion of embedded materials. 11. The civil engineering building unit is sequentially stacked, and each of the civil engineering building units is formed under a lower surface of the concrete slab using a concrete slab exposing a stone on a front surface and a resin flexible sheet body. And a bottom wall extending to the rear side of the concrete slab, and a filling material is piled on each of the bottom walls. 12. The civil engineering structure unit according to claim 8, wherein positioning holes for positioning pins are formed on upper and lower surfaces of the concrete slab in each of the civil engineering structures. A civil engineering structure, wherein a positioning pin is inserted into the positioning hole of the civil engineering building unit to be positioned, and the positioning pin penetrates a bottom wall of the civil engineering building unit which is relatively upper. 13. A construction method for a civil engineering structure in which civil engineering building units are sequentially stacked to construct a civil engineering structure, wherein each of the civil engineering building units is sequentially assembled at a stacking position. A bottom wall made of a flexible sheet having water permeability is laid on the lower surface of the stacking position, and then a stone is exposed on the front surface on the front end of the bottom wall to form a front wall. A concrete slab is placed, and then a peripheral wall made of a flexible sheet having water permeability is arranged on the bottom wall behind the concrete slab and connected to the concrete slab. A method for constructing a civil engineering structure, comprising: forming a packing material storage space by the peripheral wall and the bottom wall; and then storing a packing material in the packing material storage space. 14. A civil engineering construction method for constructing a civil engineering structure by sequentially stacking civil engineering building units, wherein each of the civil engineering building units is sequentially assembled at a stacking position. A concrete wall that lays a bottom wall made of a resin-made flexible sheet body on the lower surface of the stacking position, and then exposes a stone on the front surface on the front end of the bottom wall to form a front wall. A method of constructing a civil engineering structure, comprising: holding the base material by placing the base material thereon, and then placing a filling material on the bottom wall. 15. The concrete slab according to claim 13 or 14, wherein the concrete slab having positioning holes on upper and lower surfaces of the concrete slab is prepared, and the concrete slab is placed on the bottom wall before placing the concrete slab. The positioning pin is inserted into the positioning hole of the civil engineering building unit below the bottom wall while the positioning pin is passed through the front end of the bottom wall, and the positioning pin is projected upward from the bottom wall. A method for constructing a civil engineering structure, wherein a slab is placed on the bottom wall while positioning holes on the lower surface of the concrete slab are inserted into the positioning pins. 16. The method according to claim 1, wherein
In any one of the above, the flexible sheet body has a peripheral wall formed of a wire mesh. 17. The flexible sheet according to claim 1, wherein a bottom wall of the flexible sheet is a resin net.