JP4521973B2 - Retaining wall construction method - Google Patents

Description

[0001]
[Industrial application fields]
TECHNICAL FIELD The present invention relates to a retaining wall block used for river revetment, road protection, or an outer wall of residential land, and a retaining wall using the retaining wall block.
[0002]
[Prior art]
In order to prevent river wall protection, road side walls, and external walls of residential land from collapsing or eroding, conventionally, concrete walls have been stretched over the side walls and slope walls, or concrete blocks and brick blocks are placed on one side. They are stacked to prevent the side walls from collapsing, and the soil walls are prevented from being eroded by rain and river water.
[0003]
[Problems to be solved by the invention]
These concrete walls and blocks are stretched all over from the viewpoint of preventing the collapse of the revetment and retaining walls, but the artificial colors are strong and tasteless on the landscape. In addition, plants such as flowers and small animals such as insects are not necessarily desirable for ecosystems because they prevent their growth and survival.
For example, when concrete is laid up for river revetment or blocks are piled up, there is no place for fish and insects, and no plants grow. Similarly, in the case of law enforcement on the road side walls, plants do not grow, so not only the natural ecosystem is damaged, but also the appearance is inorganic, so the change is scarce and it is mentally inconvenient for the viewer. It tends to be stable.
[0004]
SUMMARY OF THE INVENTION The present invention solves the above-described problems, and an object thereof is to provide a retaining wall block for revetment that coexists with nature such as animals and plants, and that also provides peace to humans, and a retaining wall using the same. .
[0005]
[Means for Solving the Problems]
The construction method of the retaining wall according to the first aspect of the present invention includes a bottom wall surface, a rear wall standing on the rear side of the bottom wall surface, and left and right side walls inclined inward from the front to the rear. The width in the left-right direction of the wall is formed wider than the width formed at the front end of the left and right side walls, and the left and right most protruding end surface formed by the side surface of the bottom wall surface and the side surface of the rear wall is the rear wall. A retaining wall construction method in which a plurality of retaining wall blocks formed by a predetermined length from the front to the front are arranged to form a retaining wall, wherein the left and right most protruding end surfaces of adjacent retaining wall blocks are brought into contact with each other. If the supported wall is a gently curved surface, it is constructed with a gap on the rear side of the left and right most projecting end surfaces to be contacted. If the wall surface to be held is a sharp curved surface, By cutting rectangular the right and left outermost projecting end face of the characterized by construction.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
In the construction method of the retaining wall according to the first embodiment of the present invention, when the retaining wall surface is a gently curved surface in the construction on the retaining wall surface having a concave curved surface, the left and right most protrusions to be brought into contact with each other Installed with a gap on the back side between the end faces, and when the supported wall is a steep curved surface, cut one of the left and right most protruding end faces of the left and right most protruding end faces to be applied, The left and right most projecting end surfaces are formed by a predetermined length from the rear wall to the front, so even if the supported wall surface is a gently curved surface or a steep curved surface, there is a gap behind the retaining wall blocks. Can be reduced. Therefore, the amount of the binding material such as concrete poured into the gap can be reduced, and the workability becomes easy.
[0007]
【Example】
Hereinafter, an embodiment of a retaining wall block according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a retaining wall block according to the present invention, and FIG. 2 is a side view. A rear wall 12 stands at the rear end of the bottom wall 11. A left side wall 13 and a right side wall 14 are formed at the left and right ends of the bottom wall 11 so as to incline inwardly from the front to the rear and extend to the rear wall 12. Through holes 131 and 141 are formed in the vicinity of the center of the inclined portion of the left side wall 13 and the right side wall 14, respectively, and a pair of through small holes 132 and 133 and through small holes 142 and 143 are formed in the wall near the front thereof. ing. Two through holes 111 and 112 are formed in the bottom wall 11. Elongated small holes 121 and 122 are formed on the upper surfaces of both end portions of the rear wall 12, and metal insert members 151 and 152 having screw grooves are embedded in the small holes 121 and 122. A stopper 113 having a convex structure is formed at the bottom of the bottom wall 11 to prevent positioning and displacement during construction.
[0008]
Next, the construction method will be described. FIG. 3 is a front view when the retaining wall block 10 according to the present invention is stacked and constructed, and FIG. 4 is a side view. The retaining wall blocks 10 are arranged alternately in each step, and bolts 161 and 162 in which screws are formed are inserted into the through holes 111 and 112 in the bottom wall 11 of each retaining wall block 10. The insert members 151 and 152 embedded in the wall 12 are screwed. At this time, positioning is performed by bringing the stopper 113 formed below the bottom wall 11 of the upper retaining wall block 10 into contact with the rear wall 12 of the lower retaining wall block 10. In this way, the retaining wall 20 is formed in a step shape by stacking in the vertical direction. This structure is placed on the riverbank, road side wall, or slope 21 of the residential area, and a bonding material 23 such as concrete is poured into a gap 22 between the two and fixed. Thereby, the retaining wall 20 that protects the slope is constructed.
When the retaining wall 20 constructed in this way is in the water of the river, the flow speed becomes slow when the river flows through the through holes 131 and 141 formed in the left and right side walls 13 and 14 of the retaining wall block 10. The space 101 surrounded by the bottom wall 11, the rear wall 12, the left and right side walls 13, 14 of each retaining wall block 10 and the bottom wall of the upper retaining wall block 10 serves as a resting place for fish and river algae. Natural symbiosis with rivers can be achieved.
Further, the retaining wall 20 exposed to the land is provided with a plant in the space 101 surrounded by the wall surface of each retaining wall block 10 so that the surface of the retaining wall 20 is covered with the plant. Can be built.
[0009]
FIG. 5 is a plan view of the construction situation when the wall surface forming the retaining wall is bent in a curved shape, as viewed from above. When the wall surface is curved, the retaining wall blocks 10 arranged in the horizontal direction are aligned with the curved surface so as to form a gap 17 therebetween. A bonding material such as concrete is poured into the gap 17 and fixed.
[0010]
FIG. 6 shows an embodiment in which the rear wall 12 of the retaining wall block 10 stands up obliquely rearward. According to the retaining wall block according to this embodiment, when stacked up and down, the shape of the side in contact with the slope side is close to the shape of the slope as shown in FIG. Therefore, since the gap between the slope and the retaining wall 20 is reduced, the amount of use of a binding material such as concrete flowing into the gap is reduced.
[0011]
FIG. 8 shows an embodiment in which a panel 30 is formed on the front surface of the retaining wall block 10. An insert member 31 is embedded in the side surface of the panel 30 and is fixed by a screwed bolt 33 that passes through through small holes 132, 133, 142, and 143 formed in the left and right side walls 13 and 14 of the retaining wall block 10. The construction method of the retaining wall 20 is the same as that described above.
According to this embodiment, since the closed space 102 is formed by the wall surface and the front block of each retaining wall block 10, the water flow is further slowed down in the river, which is more suitable as a fish resting place or a river algae growing place. Yes, on the land, the vegetation site is surrounded, so there is no risk of plants falling. Further, by forming the pattern 32 on the surface of the front panel 30 as shown in FIG. 3, the plant and the pattern of the front panel 30 are mixed with each other on the landscape, and the pattern is further varied.
[0012]
FIG. 9 shows an embodiment in which a metal or plastic mesh ridge 40 is arranged in the space 101 of the retaining wall block 10 and plants are grown in the ridge 40. The ridge 40 is detachably formed with respect to the space 101 of the retaining wall block 10, and in order to grow a plant on the retaining wall block 10, a plant planted in a pot or the like in another place is inserted into the ridge 40, This is done by placing the ridge 40 into which the plant is inserted in the space 101 of the retaining wall block 10 as shown in FIG. For replacement and maintenance of the plant set in the retaining wall block 10, the plant may be removed from the retaining wall block 10 together with the ridge 40 and replaced with a new one. The plant of the removed cocoon 40 can be exchanged or maintained at a planting shop or the like, not at the site, and can be reused as a new material on the retaining wall 20 in another place.
[0013]
Hereinafter, another embodiment of the retaining wall block of the present invention will be described with reference to the drawings.
FIG. 10 is a perspective view of the retaining wall block 10A according to the present embodiment, and FIG. 11 is a plan view of the retaining wall block 10A. The retaining wall block 10 </ b> A has a rear wall 12 standing at the rear end of the bottom wall 11. A left side wall 13 and a right side wall 14 are formed at the left and right ends of the bottom wall 11 so as to incline inwardly from the front to the rear and extend to the rear wall 12. Here, the width in the left-right direction of the rear wall 12 is formed wider than the width formed at the front end portions of the left side wall 13 and the right side wall 14. A left and right most protruding end surface 170 formed by the side surface of the bottom wall surface 11 and the side surface of the rear wall 12 is formed by a predetermined length L1 from the rear wall 12 to the front. By setting the predetermined length L1 to be equal to or less than half of the length L2 from the rear wall 12 to the front side ends of the left side wall 13 and the right side wall 14, a gap behind the retaining wall blocks 10A can be effectively reduced. Can be reduced. In addition, when the length L2 from the rear wall 12 to the front side edge part of the left side wall 13 and the right side wall 14 is 800 millimeters, the predetermined length L2 is preferably 350 millimeters. Incidentally, the width in the left-right direction of the rear wall 12 was 1998 mm, and the width on the inner wall surface formed by the front end portions of the left side wall 13 and the right side wall 14 was 1298 mm.
Through holes 131 and 141 are formed in the vicinity of the center of the inclined portion of the left side wall 13 and the right side wall 14, respectively, and a pair of through small holes 132 and 133 and through small holes 142 and 143 are formed in the wall near the front thereof. ing. Two through holes 111 and 112 are formed in the bottom wall 11. Elongated small holes 121 and 122 are formed on the upper surfaces of both end portions of the rear wall 12, and metal insert members 151 and 152 having screw grooves are embedded in the small holes 121 and 122. At the bottom of the bottom wall 11, stoppers 113 and 114 having a convex structure for preventing positioning and displacement during construction are formed.
[0014]
Next, the construction method will be described. FIG. 12 is a plan view when the retaining wall blocks 10A according to the present embodiment are stacked and constructed. The retaining wall blocks 10A are staggered by half a block for each stage, and the retaining walls are configured by bringing the left and right most projecting end surfaces 170 of adjacent retaining wall blocks 10A into contact with each other. At this time, bolts 161 and 162 in which screws are formed in the through holes 111 and 112 in the bottom wall 11 of each retaining wall block 10A are inserted, and inserted into the insert members 151 and 152 embedded in the rear wall 12 of the lower retaining wall block 10A. Screw on. Positioning is performed by bringing stoppers 113 and 114 formed below the bottom wall 11 of the upper retaining wall block 10A into contact with the rear wall 12 of the lower retaining wall block 10A. In this way, the retaining wall is formed in a step shape by stacking in the vertical direction. This structure is placed on the riverbank, road side wall, or slope of a residential area, and a binding material such as concrete is poured into the gap between them and fixed. As a result, a retaining wall for protecting the slope is constructed.
When the retaining wall constructed in this way is in the water of the river, the flow rate becomes slower when the flow of the river passes through the through holes 131, 141 formed in the left and right side walls 13, 14 of the retaining wall block 10A. A space 101 surrounded by the bottom wall 11, the rear wall 12, the left and right side walls 13, 14 of each retaining wall block 10 </ b> A and the bottom wall of the upper retaining wall block 10 </ b> A serves as a resting place for fish and river algae, and a river Symbiosis with nature.
In addition, the retaining wall exposed on land is planted in the space 101 surrounded by the wall surface of each retaining wall block 10A so that the surface of the retaining wall is covered with plants, so that a retaining wall that gives peace to the heart is constructed. I can do it.
[0015]
FIG. 13 is a plan view of the construction situation when the supported wall surface forming the retaining wall is a gently curved surface as viewed from above, and FIG. 14 is an enlarged plan view of the main part.
As shown in the figure, when the supported wall surface is a gently curved surface, the clearance wall 171 is provided on the rear side of the left and right most protruding end surfaces 170 of the retaining wall block 10A arranged in the lateral direction. A bonding material such as concrete is poured into the gap 171 and fixed. At this time, since the left and right most projecting end surfaces 170 are formed by a predetermined length L1 from the rear wall 12 to the front, the retaining wall blocks 10A do not come into contact with each other at the front. 171 can be reduced. Accordingly, it is possible to reduce the amount of the binding material such as concrete poured into the gap 171.
[0016]
FIG. 15 is a plan view of the construction situation when the supported wall surface forming the retaining wall is a sharp curved surface as viewed from above, and FIG. 16 is an enlarged plan view of the main part.
As shown in the figure, when the supported wall surface is a sharp curved surface, one of the left and right most protruding end surfaces 170 of the retaining wall block 10A arranged in the lateral direction is cut obliquely to form a cut surface 172. Then, the left and right most protruding end surfaces 170 of one retaining wall block 10A and the cut surface 172 of the other retaining wall block 10A are brought into contact with each other for construction. If the left and right most protruding end surface 170 of one retaining wall block 10A and the cut surface 172 of the other retaining wall block 10A are not in contact with the curved surface, the left and right most projecting end surface 170 of the retaining wall block 10A is not affected. A gap is provided on the rear side of the retaining wall block 10A and the cut surface 172 of the other retaining wall block 10A. Then, a binding material such as concrete is poured into the gap 171 and fixed. At this time, since the left and right most projecting end surfaces 170 are formed by a predetermined length L1 from the rear wall 12 to the front, the retaining wall blocks 10A do not contact each other in the front. Therefore, it is not necessary to reduce or use the amount of the binder such as concrete flowing into the gap.
Also in this embodiment, the rear wall of the retaining wall block may be erected obliquely rearward as described with reference to FIG. Moreover, as shown in FIG. 8, you may form the panel 30 in the front surface of a retaining wall block. Further, as shown in FIG. 9, a mesh-like ridge 40 made of metal or plastic may be arranged in the space of the retaining wall block.
[0017]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the retaining wall block for revetment which coexists with nature, such as animals and plants, and also gives the comfort to humans, and the retaining wall using the same can be provided.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overall configuration of a retaining wall block according to an embodiment of the present invention. FIG. 2 is a side view of the retaining wall block. FIG. 3 is a front view of a retaining wall constructed with the retaining wall block. 4] Side view of the retaining wall [FIG. 5] Plan view according to another embodiment of the retaining wall constructed with the retaining wall block [FIG. 6] Side view of the retaining wall block according to another embodiment of the present invention [FIG. A side view of a retaining wall constructed with the retaining wall block. FIG. 8 is a perspective view showing an entire configuration of a retaining wall block according to another embodiment of the present invention. FIG. 9 is a retaining wall according to still another embodiment of the present invention. FIG. 10 is a perspective view showing an overall configuration of a retaining wall block according to another embodiment of the present invention. FIG. 11 is a plan view of the retaining wall block. FIG. Plan view of the constructed retaining wall [Fig. 13] The retaining wall that forms the retaining wall with the retaining wall block is loose. Fig. 14 is a plan view of the construction situation when it is curved from above. Fig. 14 is an enlarged plan view of the main part. Fig. 15 is construction when the retaining wall that forms the retaining wall with the retaining wall block is a sharp curved surface. Plan view of situation seen from above [Fig. 16] Expanded plan view of the same part [Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Retaining wall block 11 Bottom wall 12 Rear wall 13 Left side wall 14 Right side wall 17 Gap 20 Retaining wall 21 Slope 22 Gap 23 Bonding material 30 Panel 31 Insert member 32 Pattern 33 Screw bolt 40 Mesh-like ridge 101 Space 102 Closed space 111 , 112 Through hole 113 Stopper 121, 122 Small hole 131, 141 Through hole 132, 133, 142, 143 Small through hole 151, 152 Insert member 161, 162 Bolt

Claims (1)

  A bottom wall surface, a rear wall standing on the rear side of the bottom wall surface, and left and right side walls inclined inward from the front to the rear, and the width in the left-right direction of the rear wall at the front side end of the left and right side walls A plurality of retaining wall blocks formed to have a predetermined length from the rear wall to the front are formed to be wider than the formed width, and the left and right most protruding end surfaces formed by the side surface of the bottom wall surface and the side surface of the rear wall are arranged. In the construction method of the retaining wall forming the retaining wall, the retaining wall is configured by bringing the left and right most protruding end surfaces of adjacent retaining wall blocks into contact with each other, In the construction, if the supported wall is a gently curved surface, a gap is provided on the rear side of the left and right most protruding end surfaces to be contacted, and if the supported wall is a sharp curved surface, Cut and construct one of the left and right most protruding end surfaces of the left and right most protruding end surfaces to be contacted Retaining wall method of construction which is characterized the door.

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