JP2002121757A - Retaining wall structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a retaining wall structure capable of easily and reliably stacking blocks, and realizing excellent working efficiency of the retaining wall construction. SOLUTION: Large blocks and small blocks are stacked in an arbitrary combination. At least large blocks are used for vegetation blocks having a soil dressing chamber, and the level of the large blocks is set to be substantially same as the level of small blocks on the upper stage which are stacked on the side adjacent thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a retaining wall structure.

[0002]

2. Description of the Related Art Conventionally, as an embodiment of a retaining wall structure, there is a construction in which a retaining wall for slope protection or seawall protection is constructed by stacking vegetation blocks along a cut surface of a ground. .
And, for the vegetation block, the block body is formed in a box shape with an upper surface opening, and the block body is filled with soil,
Plants are vegetated on the same soil.

However, the retaining wall structure described above has an aesthetic problem that the landscape becomes monotonous because the sizes of the vegetation blocks are all the same.

[0003] Further, since the volume of the vegetation block in the block body is constant, the amount of soil that can be filled is also constant, and as a result, the types of vegetable plants are limited and variations in vegetation plants are made. Is poor, and there is an aesthetic defect from this point as well.

In addition, the size of the vegetation block used is generally small in consideration of workability and cost, so that the vegetation is limited to shrubs or flowers. From the point of view, there is a problem that the variation of vegetation is poor.

Therefore, according to the present invention, a large block and a small block are arbitrarily combined and stacked, and at least the large block is formed as a vegetation block having a guest room. Level and
An object of the present invention is to provide a retaining wall structure characterized in that the level of an upper small block stacked adjacently on the side is substantially the same as the level of the small block.

[0005] The present invention also has the following features.

The small block is a vegetation block having a guest room and / or a non-vegetation block having no guest room.

The large block and the small block each have a block body formed in a cylindrical shape having upper and lower openings on the upper and lower surfaces, and at least a boundary surface between the vertically stacked block bodies is made of crushed stone or the like. Placing a lump.

A partition is provided at the rear upper portion of each of the large block and the small block which serve as vegetation blocks, and the partition is stacked on the top of the guest soil filled in the guest room. It is provided with a front and rear partition wall and a vertical partition wall for vertically partitioning a lump disposed on a boundary surface with the block body.

The partition body is formed in a box shape having an upper surface opening,
Water collection and water supply room was formed inside.

At the rear upper part of the left and right side walls of each block main body, a stepped part is formed which is lower than the front upper part and is open at least at the upper part and at the left and right sides. The steps formed in the block body of the above are to be continuous in the extending direction of the retaining wall to be constructed.

On the left and right side walls of each of the large block and the small block, which are the vegetation blocks, are formed step portions each having a step corresponding to the height of the partition body.
The partition can be detachably mounted horizontally between the left and right steps.

The rear wall of each block body is formed so as to be inclined such that the upper end is located rearward of the lower end.

[0013]

Embodiments of the present invention will be described below.

That is, in the retaining wall structure according to the present invention, a large block and a small block are arbitrarily combined and stacked, and at least the large block is formed as a vegetation block having a guest room, and the level of the large block is reduced. And the level of the upper small blocks stacked adjacently on the sides thereof is substantially the same.

[0015] The small block is a vegetation block having a guest room and / or a non-vegetation block having no guest room.
Each block main body is formed in a cylindrical shape having upper and lower openings on the upper and lower surfaces, and at least a block such as crushed stone is arranged on a boundary surface between the block main bodies stacked vertically.

In addition, a partition body is provided on the rear upper portion of each of the large block and small block which are the vegetation blocks, and the partition body is provided with the soil filled in the guest soil chamber and the upper level. It is provided with a front and rear partition wall for vertically partitioning a lump disposed on a boundary surface with a block body to be stacked, and upper and lower partition walls for vertically partitioning.

Here, the partition body may be formed in a box shape having an upper surface opening, and a water collecting / water supply chamber may be formed therein.

Further, at the rear upper portion of the left and right side walls of each block body, a step portion is formed which is partially lower than the front upper portion and is open at least at the upper side and at the left and right sides. The steps formed in the block main body of the small block are configured to be continuous in the extending direction of the retaining wall to be constructed.

Further, a step portion having a step corresponding to the height of the partition body is formed on each of the left and right side walls of the large block and the small block serving as the vegetation block. The partition can be detachably mounted horizontally.

The rear wall of each block body is formed so as to be inclined such that the upper end is located rearward of the lower end.

[0021]

Embodiments of the present invention will be described below with reference to the drawings.

Y shown in FIGS. 1 to 4 is a retaining wall for slope protection as a retaining wall structure according to the present invention. The retaining wall Y includes a large vegetation block A as a large block and a small vegetation block A. It is constructed by stacking small vegetation blocks B as blocks and small non-vegetation blocks C as small blocks.

That is, as shown in FIG.
In relation to the size of the blocks A, B, and C, the left and right widths Wa, Wb, and Wc of the blocks A, B, and C are identical to each other, and the small vegetation block B and the small non-vegetation block are formed. The heights Hb and Hc of C are formed identically,
The height Ha of the large vegetation block A is formed to be twice the heights Hb and Hc of these small blocks B and C.

Then, as shown in FIG. 1, three large vegetation blocks A forming the lowermost stage are placed at intervals of three in the left-right direction, and three large vegetation blocks A are placed between the large vegetation blocks A. The small vegetation blocks B are stacked in two stages and placed, so that the level of each large vegetation block A and the level of the second stage small vegetation block B are substantially the same.

The first-stage large vegetation block A and the second-stage small vegetation block B having substantially the same level as described above.
The small non-vegetation blocks C that form the third stage are stacked one above the other.

Next, on the small non-vegetation block C forming the third stage, the large vegetation forming the fourth stage is positioned between the large vegetation blocks A forming the first stage. The blocks A are stacked in the left-right direction at intervals of three. In this manner, the large vegetation blocks A are arranged in a staggered manner.

Then, between the large vegetation blocks A forming the fourth stage, three small non-vegetation blocks C forming the fourth stage are stacked in a single stage, and each small non-vegetation block C is formed. The small-sized vegetation blocks B forming the fifth stage are stacked on C only one level, and the level of each small-sized vegetation block B and the level of each large vegetation block A forming the fourth stage are not substantially the same. ing.

1 to 4, D is the ground, G is the soil as the packing material, J is the lump as the packing material such as crushed stone and rubble, and K is the backfill such as crushed stone. L is a slope, Q is a blinding material, R is a crushed stone, S is a suction prevention material, T is a cut surface, and U is a lump as a packing material such as chestnut stone.

In this manner, the level of the large vegetation block A is substantially the same as the level of the upper small vegetation block B which is stacked adjacent to the side.
Leveling in the direction of extension of the retaining wall Y to be constructed (work to adjust the ground height of the surface on which the block is placed on the upper stage) becomes easy,
As a result, the stacking work can be performed easily and reliably, and the work efficiency of the retaining wall construction can be improved.

In addition, since the retaining wall Y is constructed by stacking the large vegetation block A, the small vegetation block B, and the small non-vegetation block C in a stacked manner, the variety of slopes N Can be created.

That is, the large vegetation block A and the small vegetation block B and the small non-vegetation block C are provided with a large difference (for example, a two-fold difference) in the height and the front-rear width (depth width). It is possible to give a three-dimensional change in appearance, and it is also possible to provide a difference in the internal volume. Especially, since a large amount of soil G can be accommodated in the large vegetation block A, Takagi and Nakagi P1s (eg, cherry trees and autumn leaves) can be planted.

At this time, the large vegetation block A can maintain desired intervals in the left-right direction and the up-down direction by the combination form of the small vegetation block B and the small non-vegetation block C. -The tree planting interval can be secured by adapting to the size, type, nature and appearance of the middle tree P1 class, and the breeding environment of such high and middle tree P1 class can be made favorable.

Further, three small vegetation blocks B are arranged between the large vegetation blocks A, A, and shrubs P2 are vegetated in each of the small vegetation blocks B. A wide variety of vegetation (planting) with different types of contrast and variation is possible, and the slope N that matches the surrounding area, the slope N that eliminates uniformity and monotony, and the landscape changes significantly (diversification) ) To enhance the slope N which is full of accents, and furthermore, the slope N which has a high aesthetic landscape.

Moreover, since the high and middle trees P1 form a large shade, they can form a space where small animals such as birds, insects, reptiles and the like live in preference, and as a result, natural ecosystems can be restored. Can be.

Further, by partially disposing the large vegetation block A, the amount of the large vegetation block A, which is relatively high in product cost and packing material cost, is reduced, and the product cost and the relatively large cost are reduced. It is possible to increase the amount of the small vegetation block B and the small non-vegetation block C, which are low in the packing material cost, and it is possible to minimize the increase in the cost of constructing the retaining wall as a whole.

When plants are vegetated on the large vegetation block A, the small vegetation block B or the small non-vegetation block C adjacent to the large vegetation block A is used as a scaffold, and the large vegetation block is used therefrom. Since the vegetation work on A can be performed, such vegetation work can be performed safely and efficiently.

Next, the configuration of each of the blocks A, B, and C will be described with reference to FIGS.

[Block A for Large Vegetation] As shown in FIGS. 5 to 9, a block A for large vegetation is disposed on a block main body 1 formed in a rectangular tubular shape in a plan view and on a rear upper portion of the block main body 1. A water collecting / water supply body 20 as a box-shaped partition body is provided at the provided upper opening.

The block body 1 includes a front wall 2, left and right side walls 3, 4 extending rearward from left and right ends of the front wall 2, and a rear wall interposed between the rear ends of the side walls 3, 4. 5, connecting / fitting ridges 6 and connecting / fitting concave ridges 7 as connecting portions formed over the left and right end surfaces of the front wall 2 and the front end left and right side surfaces of the left and right side walls 3, 4. ing.

The front wall 2 has a forward-back-to-back low-rearward posture and is formed so as to be bent from the center in a side view.
Front end portions 3a, 4a of left and right side walls 3, 4 are continuously provided on the left and right rear surfaces of the front wall 2, and extend horizontally rearward from the front end portions 3a, 4a to form left and right side wall main bodies 3b, 4b. At the upper part of the left and right side wall bodies 3b, 4b and in the rear half thereof, a stepped concave (as a step) water collecting / water supply body receiving part 3c, 4c is formed.
Between the rear ends of b and 4b, a rear wall 5 formed at substantially the same height as the rear ends of both the catchment and water supply body receiving parts 3c and 4c has a front low rear height (the upper end is closer to the lower end). Is also located rearward) in a rearwardly inclined posture.

In this way, the upper half of the upper and lower openings of the housing space formed inside the block body 1 is
It is possible to form a guest room 8 whose upper surface is largely open and the inside is formed as large as possible. Fill it,
While the vegetation can be vegetated on the same soil G, the lump J is filled in the lump chamber 9 and the lump chamber 9 is filled.
, The excess water permeating into the soil G is smoothly discharged downward through the lump chamber 9, so that the drainage of the soil G is good.

Here, the lump room 9 is made of planted tall trees.
It also functions as a root extension space (rooting space) for P1.

At the upper part of the left and right side wall main bodies 3b, 4b and at the latter half thereof, stepped concave water collecting / water supply receiving parts 3c, 4 are provided.
Since the c is formed, when loading the lump J into the block main body 1, the worker collects the water collecting / water supply units 3c, 4
Large from c (for example, height 1.0m to 2.0m, left and right width 2.0m)
Can easily enter and exit the block body 1.

At this time, the adjacent small vegetation block B or small non-vegetation block C is used as a scaffold to form the block main body 1.
Since the user can easily get in and out of the inside, the above operation can be performed more efficiently.

A protruding piece is provided on the inner surface of the lower end of the front wall 2.
2a is projected inward. The projecting piece 2a is formed over the entire inner surface of the front wall 2 and has a lower end surface flush with the lower end surface of the front wall 2.

In this manner, the lower surface of the block J filled in the block body 1 and the upper surface of the soil G filled in the block body 1 disposed below the block body 1 are formed by the projecting pieces 2a.
The boundary surface (non-contact state) can be maintained at the boundary surface, and the frictional force in the horizontal direction of the lump J, J at the boundary surface between the block bodies placed on the upper and lower stages is ensured satisfactorily. ing.

Further, by disposing the projecting piece 2a on the rainwater inflow groove 25 formed in the water collecting / water supply body 20 described later arranged in the lower stage, the protrusion piece 2a covers directly above the rainwater inflow groove 25. ,
Prevents the rainwater inflow groove 25 from being blocked by the lump J and the like, and allows small animals to collect water through the rainwater inflow groove 25 at all times.
It is ensured that the user can enter and exit the water supply body 20 reliably.

Further, water / air circulation holes 10, 10, 11 are formed in the left and right side walls 3, 4 and the rear wall 5, respectively, so that rainwater, groundwater, etc. can be passed through the water / air circulation holes 10, 10, 11 respectively. Water is allowed to flow and air is allowed to flow, and the roots of the vegetated plants can be rooted outward from the block body 1 through the water / air circulation holes 10, 10, 11. ing.

The connecting / fitting ridge 6 is formed so as to extend substantially vertically upward from the lower end of the left end surface of the front wall 2 with respect to the bottom surface of the block body 1 and has a substantially semi-circular convex cross section. On the other hand, the connecting and fitting concave ridges 7
Is formed so as to extend substantially vertically upward from the lower end of the right end face of the front wall 2 with respect to the bottom surface of the block main body 1 and has a horizontal cross-sectional shape in which the connection / fitting ridge 6 can be fitted. It is formed in a semicircular concave shape.

In this way, even when the slope N is curved in the left-right direction, the vegetation blocks A are laid along the curved surface of the slope N, and the connection and fitting ridges are formed. 6 and the connecting / fitting concave ridge portion 7 can be fitted and connected.

As shown in FIGS. 10 to 14, the water collecting / water supply body 20 is formed between the water collecting / water supply bodies 3c, 4c formed at the rear of the left and right side walls 3, 4 of the block main body 1. A water collecting / water supply chamber 31 is formed inside the water collecting / water supplying body 20.

A plurality of inflow grooves 25 such as rainwater are formed in the upper edge of the front wall 24 of the water collecting / water supply body 20 at intervals in the left-right direction and are formed in a concave shape. Is formed with a plurality of (four in this embodiment) insertion holes 27, 27, 27, 27 that are spaced apart in the left-right direction and penetrate in the front-rear direction.
Capillary phenomenon generating materials M, M, for example, a fiber string or the like capable of generating a capillary phenomenon are inserted through 7, 27, 27.

Here, the capillarity generating materials M, M are immersed in the pool water in the water collecting / water supply body 20 at the base end side.
The tip end side of each of the capillarity generating materials M, M is extended and arranged in the soil G in the soil chamber 8.

In this way, the surface water, such as rainwater, that has fallen on the guest soil G is collected through the rainwater or other inflow groove 25 and collected and supplied by the water collecting body 20.
While the excess water permeated into the soil G of the small vegetation block B disposed in the upper stage is collected and supplied to the water collection / water supply chamber 31 described later.
The water can be flown into the 20 water collection / water supply chambers 31, and rainwater or the like can be reliably stored in the water collection / water supply chamber 31.

The stored water in the water collection / water supply chamber 31 can be continuously supplied to the soil G in the soil chamber 8 by a fixed amount by utilizing the capillary phenomenon of the capillary phenomenon generating material M. Done,
Water, nutrients and fresh air can be supplied to small animals such as plants and bacteria vegetated on the soil G.

Further, since the water collecting / water supply body 20 functions not only as a water collecting function but also as a habitat for living things, small animals freely move between the guest room 8 and the water collecting / water supply room 31. It is possible to provide a comfortable living and habitat space for living things.

Therefore, the growth of small animals can be protected, and the growth environment of vegetated plants can be improved.

Moreover, the inside of the rectangular cylindrical block body 1 and
By filling the block K as a backfill material between the block body 1 and the ground D, the soil G and the ground D filled in the soil chamber 8 can be made continuous. And G
And the small animals such as plants and bacteria vegetated on the soil G can replenish moisture, nutrients, and fresh air from the ground D.

In addition, the air flow between the soil G and the ground D can be further activated to activate the soil G and the ground D. From this point of view, the growth environment of living things can be reduced. It can be secured well.

Therefore, despite the provision of the large vegetation block A, the organisms can be grown in a natural state without obstructing the natural ecosystem, and the protection and management of the organisms can be achieved. Labor and cost for the operation can be eliminated.

The left and right ends of the front wall 24 have partition wall forming pieces 24a, 24a having tapered surfaces on the front and rear sides, respectively.
a is formed so as to protrude outward, and
And the mass J.

In the upper rear half of the left and right side walls 36, 37 of the water collecting / water supply body 20, overflow recesses 33, 33 are formed in a stepped recess shape, and the rear ends of the overflow recesses 33, 33 are rearward. The upper surface of the rear wall 34 is set as a concave portion 35 for inflow of groundwater or the like by setting the same position as the upper surface of the wall 34. 38 is water collection and water supply body
Positioning projections projecting forward from the left side of the front wall 24 of the device 20.

With the above-described configuration, the large vegetation block A is configured such that the water collecting / water supply body 20 is laid horizontally on the water collecting / water supply body receiving portions 3c, 4c of the block body 1, The positioning projection 38 protruding from the front wall 24 of the water supply body 20 can be assembled by abutting against the inner surface of the left side wall 3 of the block body 1 for positioning.

In this manner, the front wall 2 of the block body 1
The guest soil chamber 8 is formed between the front wall 24 and the bottom 22 of the water collecting / water supply body 20 and the left and right side walls 3 and 4, and the guest soil G is filled in the guest soil chamber 8.

As shown in FIG. 4, the block main body 1 has an opening 28 for inflow of rainwater or the like on the upper surface thereof.
An opening 29 for outflow of rainwater or the like is formed on the lower surface.

As shown in FIG. 4, the water collecting / water supply body 20 has a communication opening 30 formed on the upper surface thereof.
30 communicates in a vertical direction with an opening 95 for outflow of rainwater or the like of a block main body 81 of a small non-vegetation block C described below, which is stacked on the upper side.

[Small Vegetation Block B] As shown in FIGS. 15 to 19, the small vegetation block B is disposed in a block main body 41 formed in a rectangular tubular shape in a plan view and in the middle of the block main body 41. And a water collecting / water supply body 60 as a box-shaped partition body having an open upper surface.

The block body 41 includes a front wall 42, left and right side walls 43, 44 extending rearward from the left and right ends of the front wall 42, and a rear wall interposed between the rear ends of the side walls 43, 44. 45, a connecting / fitting convex ridge 46 and a connecting / fitting concave ridge 47 as connecting portions formed over the left and right end surfaces of the front wall 42 and the front end left and right side surfaces of the left and right side walls 43 and 44. ing.

The front wall 42 has a forward-back-to-back low-tilted posture, and the front end portions 4 of the left and right side walls 43 and 44 are provided on the left and right rear surfaces of the front wall 42.
3a, 44a are continuously provided, and the front end portions 43a, 44a are horizontally extended rearward to form left and right side wall main bodies 43b, 44b.
On the front upper surface of 43b, 44b are formed step portions 43d, 44d for communicating with the guest room, and on the rear upper surface of both left and right side wall main bodies 43b, 44b,
The collecting / water supply body receiving portions 43c and 44c are formed.
Between the rear ends of the water supply body receiving portions 43c, 44c, a rear wall 45 formed at substantially the same height as the two water collecting / water supply body receiving portions 43c, 44c is interposed in a rearwardly inclined posture at a front low rear height. I have.

The left and right sides and the center of the rear surface of the front wall 42 are formed with fitting grooves 62, 62, 62 for fitting the front ends of left and right partition walls (not shown), respectively. I have. Here, the left and right partition walls are used to construct a seawall.
By arranging and partitioning in a direction substantially orthogonal to the flow direction of the river, even when the water level of the river rises during flooding, etc., the soil G filled in the soil chamber 48 is scoured by the flowing water of the river. The amount of waste can be suppressed by the left and right partition walls, and the loss of the soil G is reduced as much as possible.
The vegetation function provided by 41, as well as the protection and management functions of living organisms, can be ensured well. When the retaining wall Y for slope protection is constructed as in this embodiment, the vegetation function is not used. No need to do.

The connecting / fitting ridge portion 46 is formed so as to extend substantially vertically upward from the lower end of the left end surface of the front wall 42 with respect to the bottom surface of the block body 41, and has a substantially semicircular convex cross section. On the other hand, the connecting and fitting concave streak 47
Is formed so as to extend substantially vertically upward from the lower end of the right end face of the front wall 42 with respect to the bottom surface of the block body 41, and has a horizontal cross-sectional shape in which the connection / fitting ridge 46 can be fitted. It is formed in a semicircular concave shape. 42a is a protruding piece.

In this way, a small size (for example, height 0.5
m to 1.0 m, a left and right width of 2.0 m), the upper and lower opening spaces formed in the block main body 41 are formed substantially as a front half and an upper half as a guest soil chamber 48, and the remainder as a lump chamber 49. The guest soil chamber 48 is filled with the soil G so that plants can be vegetated in the soil G, and the mass J is filled in the mass chamber 49 with the mass J. By providing the chamber 49 with a drainage function, rainwater and the like in the soil G can be smoothly drained downward through the lump chamber 49, so that the drainability of the soil G is good. Reference numeral 50 denotes a partition wall for partitioning the soil G and the block J in the front-rear direction, and reference numeral 50a denotes a partition wall insertion groove into which a side end of the partition wall 50 for the block is inserted.

The lump chamber 49 also functions as an extension space (rooting space) for the roots of the planted shrub P2.

As shown also in FIGS. 20 to 24, the water collecting / water supply body 60 is provided so as to lie between the water collecting / water supplying bodies 43c, 44c formed on the left and right side walls 43, 44 of the block body 41. It is formed in a horizontally long rectangular box shape, and forms a water collecting / water supply chamber 64 inside.

On the upper edge of the front wall 65 of the water collecting / water supply body 60, a plurality of inflow grooves 66 such as rainwater are formed in a concave shape at intervals in the left-right direction. Is formed with a plurality of (four in the present embodiment) insertion holes 68, 68, 68, 68 spaced apart in the left-right direction and penetrating in the front-rear direction.
In 8,68,68, a capillary phenomenon generating material M, M, for example, a fiber string or the like capable of generating a capillary phenomenon is inserted, and the left and right sides and the center of the front surface of the front wall 65 are Fitting grooves 69, 69, 69 for fitting the rear ends of the left and right partition walls are formed.

Then, the base end sides of the capillary action generating materials M, M are immersed in the stored water in the water collecting / water supply body 60, and the tip end sides of the capillary action generating materials M, M are connected to the guest room 48. It is stretched and placed in the guest soil G inside.

In this way, the surface water such as rainwater that has fallen on the guest soil G is collected and supplied to the water collecting / water supply body 60 through the inflow groove 66 such as rainwater.
Of the large vegetation block A or the small vegetation block B disposed at the upper level,
Alternatively, the water can be caused to flow into the water collection / water supply chamber 64 of the water collection / water supply body 60 through 49, and rainwater or the like can be reliably stored in the water collection / water supply chamber 64.

Then, the stored water in the water collecting / water supply chamber 64 can be continuously supplied to the soil G in the soil chamber 48 by a fixed amount by utilizing the capillary phenomenon of the capillary phenomenon generating material M. Done,
Water, nutrients and fresh air can be supplied to small animals such as plants and bacteria vegetated on the soil G.

The left and right ends of the front wall 65 are provided with partition wall forming pieces 65a and 65 having tapered surfaces on the front and rear sides, respectively.
a is formed so as to protrude outward, and
And the mass J.

In the upper rear half of the left and right side walls 70, 70 of the water collecting / water supply body 60, overflow recesses 71, 71 are formed in a stepped recess shape, and the rear ends of the overflow recesses 71, 71 are rearward. The upper surface of the rear wall 72 is set as a concave portion 73 for inflow of groundwater or the like by setting the same position as the upper surface of the wall 72.

With the above-described configuration, the small vegetation block B is configured such that the water collecting / water supply body 60 is laid horizontally on the water collecting / water supplying body receiving portions 43c and 44c of the block body 41, and A positioning projection 67 projecting from the front wall 65 of the water supply body 60,
The block body 1 can be assembled by being brought into contact with the inner surface of the left side wall 70 and positioned.

In this way, the front wall 42 of the block body 41
And the left and right side walls 43,44, the front wall 65 of the water collecting / water supply body 60 and the partition wall 50, and fill the soil G with the soil G. I am trying to do it.

Then, as shown in FIG. 3, the block main body 41 has an opening 74 for inflow of rainwater or the like on its upper surface.
An opening 75 for outflow of rainwater or the like is formed on the lower surface.

As shown in FIG. 3, the water collecting / water supply body 60 has a communication opening 76 formed on the upper surface thereof.
The opening 76 communicates with the opening 75 for outflow of rainwater or the like of the block body 41 stacked on the upper side in the vertical direction.

In this manner, the water collecting / water supply unit 2 of the large vegetation block A or the small vegetation block B at the top stage is
The rainwater and the like flowing into the 0,60 are supplied into the guest room 8,48, and collected by the separate large vegetation block A or small vegetation block B disposed below each guest room 8,48.・ They flow into the water supply chambers 31, 64, and similarly, the soil chambers 8,48 → water collection ・ water supply chambers 31,64 → capillary phenomenon generating material M, M → the soil chambers 8,48 → ……
The rainwater or the like is always supplied into the soil chamber 8 so that water and nutrients can be supplied to small plants such as plants and bacteria vegetated in the soil G.

Here, in the water collecting / water supply chambers 31, 64, surface water such as rainwater flowing on the upper surface of the guest soil G is filled with inflow grooves 25, 66 such as rainwater.
And the groundwater and the like may flow through the inflow recesses 35 and 73, and may be collected, and the rainwater and the groundwater may be constantly collected in the guest room 8, 48 will be supplied unnecessarily.

Further, the atmosphere in contact with the surface of the guest soil G,
The collection / water supply chambers 31 and 64 are communicated with each other through rainwater and other inflow grooves 25 and 66, and the collection / water supply chambers 31 and 64 and the ground D are coherent.
To communicate with the atmosphere and the ground D
, And both the soil G and the ground D can be activated.

[Small Non-vegetation Block C] The small non-vegetation block C is, as shown in FIGS.
81 is formed in a rectangular tube shape in plan view, and the block body 81 is formed.
A front wall 82, left and right side walls 83, 84 extending rearward from left and right ends of the front wall 82, a rear wall 85 interposed between rear ends of both side walls 83, 84, and a front wall 82 The connection as a connecting part formed over the left and right end faces of the
It is formed of a fitting ridge portion 86 and a connecting / fitting concave ridge portion 87.

The front wall 82 has a forward-back-to-back-low forward tilting posture, and the front end portions 8 of the left and right side walls 83 and 84 are provided on the left and right rear surfaces of the front wall 82.
3a, 84a are connected to each other, and the front end portions 83a, 84a are horizontally extended rearward to form left and right side wall main bodies 83b, 84b.
A stepped concave water collecting section is provided at the substantially rear half of 83b and 84b.
Water supply body receiving portions 83c, 84c are formed, and both left and right side wall main bodies 83b, 84b are formed.
In the front half of the block, projecting pieces 83d, 84d for receiving the block body project, and between the rear ends of the water collecting and water supply receiving parts 83c, 84c,
A rear wall 85 formed at substantially the same height as the water supply receivers 83c and 84c is interposed in a rearwardly inclined posture at a front low rear.

The connecting / fitting ridge portion 86 is formed to extend substantially vertically upward from the lower end of the left end surface of the front wall 82 with respect to the bottom surface of the block body 81, and has a substantially semi-circular convex shape in horizontal section. On the other hand, on the other hand,
Is formed so as to extend substantially vertically upward from the lower end of the right end surface of the front wall 82 with respect to the bottom surface of the block body 81, and has a horizontal cross-sectional shape in which the connection / fitting ridge portion 86 can be fitted. It is formed in a semicircular concave shape. 89 is a water / air circulation hole.

In this manner, the upper and lower opening spaces formed inside the block main body 81 are used as the lump chamber 88, so that the lump J can be filled in the lump chamber 88. .

Therefore, such a small non-vegetation block C
Are arranged between the large vegetation block A and the small vegetation block B, which are vertically stacked, so that
The air between the soils G, G filled in 8,48 and the ground D can be made to actively flow, and both the soils 8,48 and the ground D can be activated.

In addition, small animals inhabit in the gaps formed between the lump J filled in the block body 81,
Small animals come and go in the gap, and the small animals come and go to the soil G too frequently. By dropping feces on the soil G or leaving dead bodies, it becomes nutrient of the soil G. Thus, the growth environment of the vegetated plant can be improved.

Next, a method of stacking the vegetation blocks A will be described with reference to FIGS.

(1) Lay the foundation crushed stone R on the retaining wall construction site.

(2) The block main body 1 of the large vegetation block A and the block main body 41 of the small vegetation block B are placed in the retaining wall construction direction.
Lay J.

At this time, the small vegetation blocks B are vertically stacked in two stages, and the level is matched with that of the large vegetation blocks A.

(3) Collecting and supplying water 20 to each block body 1, 41
Overlay 60.

Here, the water collecting / water supply chamber 31 separates the guest soil chamber and the block chamber 9 formed in the lower part of the block main body 1 stacked on the upper floor, in addition to the water collecting / water supply function. Function, and the capacity of the guest room 8 can be secured more by the water collection / water supply room 31.

Therefore, a large amount of the soil G can be filled in the guest soil chamber 8, so that the environment for growing the vegetation can be improved, and the lump chamber 9 can be secured. Therefore, the mass J filled in the mass chamber 9 and the mass J in the block stacked on the upper stage thereof ensure good resistance to the earth pressure of the ground D at the retaining wall construction site. Can be.

(4) Capillary phenomena M, M are inserted into the insertion holes 27 of the water collecting / water supply bodies 20, 60, and the capillary phenomena M, M are inserted into the guest room of the block bodies 1, 41. Interposed between 8,48 and the collection / water supply chambers 31,64.

(5) Water collecting and water supply chambers 31 and 6 of water collecting and water supplying bodies 20 and 60
4 is filled with the lumps U.

(6) The blinds Q, Q are laid on the blocks J, J in the block bodies 1, 41, and the soils G, G are filled on the blinds Q, Q. The blocks K, K are filled on the sides, and the inside of the block main bodies 1, 41 and the ground D are made continuous.

Thus, the rectangular cylindrical block body
The blocks G, G and the ground D filled in the guest rooms 8, 48 are filled with the blocks K, K in the blocks 1, 41 and between the block body 1, 41 and the ground D. And can be in a continuous state,
The influence of the outside temperature of the guest soil G can be reduced.
Small animals such as plants and bacteria vegetated in the area can supply water, nutrients, and fresh air from the ground D.

In addition, the air flow between the soil G and the ground D can be further activated to activate the soil G and the ground D. From this point of view, the growth environment of living organisms can be improved. It can be secured well.

[0106] Therefore, even though the blocks are arranged in the ground D, living organisms can be grown in a natural state without hindering the natural ecosystem, and protection and management of living organisms can be achieved. Labor and cost can be reduced.

(7) The first row of blocks is formed as described above, and the small non-vegetation blocks C
Is mounted.

(8) The block body 81 is filled with the lump J, and the ground D is filled with the lump K.
81 and the ground D are made continuous.

At this time, the block main bodies 1, 41, 81 are formed in a cylindrical shape with upper and lower surfaces opened, and a block J is arranged on the boundary surface between the vertically stacked blocks.
The weight (self-weight) of each block A, B, and C, the weight of the lumps J, J, and J filled in each block A, B, and C, and the blocks A, B, and C stacked in the upper and lower stages And the frictional force of the aggregates J, J, J arranged on the boundary surface of the support wall can counter the earth pressure acting behind the retaining wall Y.

In addition, the rear wall of each block A, B, C
Since the upper end side is inclined so as to be located behind the lower end side, the rear wall of each of the blocks A, B, and C substantially follows the cut surface T formed on the ground D at the retaining wall construction site. By stacking them together, the backfill space formed between the rear wall of each of the blocks A, B, and C and the cut surface T can be made as small as possible.

As a result, it is possible to reduce the amount of the lumps K filled in the backfill space and reduce the pressure acting on the retaining wall Y by the lumps K. Y
Satisfactorily can be secured.

[0112] The stuffing space formed in the block body can be widened by the amount of the rear wall Y inclined backward, and the weight of the stuffing material filled in the stuffing space can be increased. The stability of each block is increased by the increased weight, and a strong retaining wall can be constructed.

In addition, the length of the block main body (the length of the left and right side walls) can be reduced by the amount by which the weight of the packing material can be increased, and the product cost of the block can be reduced. be able to.

Each of the block main bodies 41, 81 has a left and right side wall main body 43b, 44b, 83b, 84b in comparison with the height of the front wall 42, 82, respectively.
The height of the left and right side walls is almost half
When the masses J, J are stuffed between the 43b, 44b, 83b, 84b, the block bodies 41, which are stuffed up to the height of the left and right side wall main bodies 43b, 44b, 83b, 84b, and are adjacent in the left and right direction, , 81 can be continuously packed.

At this time, the packing operation is performed while the mass J is vibrated and crushed to a certain height, for example, 30 cm by using a vibration and crushing device (not shown). Since the work can be continuously performed in the left-right direction as described above, the work efficiency can be significantly improved.

(9) The second row of blocks is formed as described above, and the above-mentioned operations (2) to (5) are repeated on the second row of blocks. To form

At this time, the large vegetation blocks A arranged in the third row of blocks are arranged between the large vegetation blocks A, A arranged in the first row of blocks, and as a whole, The large vegetation blocks A are arranged in a staggered manner.

(10) The above (2) to (9) are repeated until a desired retaining wall height is obtained.

In this manner, the appearance of the entire retaining wall Y can be greatly changed, and the scenic effect of the slope N can be obtained, whereby the aesthetics of the retaining wall Y can be further enhanced.

FIG. 30 shows a small vegetation block B having a partition body 90 as another embodiment.
Is a guest room 48 and a lump room formed in the block body 41.
The front and rear partition walls 90a that partition the front and rear 49 from the front and rear and the upper and lower partition walls 90b that partition the upper and lower walls form an L-shaped cross-sectional side surface.

In this manner, the guest room of the block body 41
Since a large volume of 48 can be secured by the partition body 90, a large amount of the soil G can be filled in the guest soil chamber 48, and the growth environment of the vegetation can be improved. Since the lump room 49 can be secured, the lump J filled in the lump chamber 49 and the lump J in the block stacked on the upper stage thereof are separated from the ground D at the retaining wall construction site. The opposing force against earth pressure can be secured well.

In this embodiment, the case where the partition body 90 is mounted on the small vegetation block B is described.
The present invention can also be applied to the large vegetation block A by appropriately changing the size.

FIG. 31 shows a block body as another embodiment.
In these block bodies 1, 41, 81, the height of the front wall 2, 42, 82 and the height of the rear wall 5, 45, 85 are substantially the same. ing.

In this manner, each block body 1, 41, 81
When stacking other block bodies 1, 41, 81 on top, it becomes easier to take the level of each block body 1, 41, 81, and as a result, each block body 1, 41, 81 must be installed horizontally Can be done easily.

[0125]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, the large blocks and the small blocks are arbitrarily combined and stacked, and at least the large blocks are vegetation blocks having a guest room. The level of the upper small block stacked adjacent to the side is substantially the same.

In this manner, a variety of slopes can be created by arbitrarily combining large blocks and small blocks and stacking them along the cut surface of the ground.

That is, by providing a large difference between the large block and the small block in height and front-rear width (depth width), a three-dimensional change can be given in appearance, and a difference is also provided in the internal volume. In particular, since large blocks can accommodate a large amount of soil, high trees and middle trees (for example, cherry trees and autumn leaves) can be planted.

At this time, the large block can maintain a desired interval in the left-right direction and the up-down direction by combination with the small block. The tree planting interval can be secured by adapting to the aesthetics of the tree, and such a high and medium tree growing environment can be made favorable.

The small blocks disposed between the large blocks are also used as vegetation blocks, and shrubs and ground cover are vegetated on the small blocks, so that the type of plants can be contrasted with the types of plants on the entire retaining wall. A wide variety of vegetation (planting) with variations is possible, and slopes that match the surrounding area, slopes that eliminate uniformity and monotony, and drastically change (diversify) the landscape are rich in accents It is possible to rehabilitate slopes and slopes with high aesthetics.

For example, if the surrounding area is a community of high trees, vegetation communities of high trees can be created by arranging large blocks densely and planting trees in each large block.
In addition, if there are tree-lined roads in the vicinity, large blocks can be arranged at regular intervals, and trees can be planted in each large block to harmonize with the tree-lined roads.

[0132] Moreover, since tall and middle trees create a large shade, they can form a space where small animals such as birds, insects, and reptiles inhabit, and as a result, natural ecosystems can be restored. it can.

Further, by arranging the large blocks partially, the amount of large blocks having relatively high product cost and packing material cost can be reduced, and the product cost and packing material cost can be relatively low. The amount of the small blocks can be increased, and the increase in the cost of constructing the retaining wall as a whole can be minimized.

When plants are vegetated in the large blocks, the small blocks adjacent to the large blocks can be used as scaffolds for vegetation work on the large blocks. Can do well.

Further, since the level of the large block is substantially the same as the level of the upper small block stacked adjacent to the side, the leveling in the direction of extension of the retaining wall to be constructed (the upper level is set). The work of adjusting the height of the ground on the surface on which the blocks are placed) becomes easy, and as a result, the stacking work can be performed easily and reliably, and the work efficiency of the retaining wall construction can be improved.

According to the second aspect of the present invention, the small blocks are vegetation blocks having a guest room and / or non-vegetation blocks having no guest room.

As described above, even for the small blocks, the combination of the vegetation block having relatively high product cost and the packing material cost with the non-vegetation block having relatively low product cost and the packing material cost is combined. By
The increase in the overall cost of constructing the retaining wall can be minimized.

In addition, since the non-vegetation block does not have a guest room, weeds cannot grow. Therefore, maintenance of weed removal on the entire retaining wall can be reduced, and dangerous weed removal work on a high slope can be avoided.

According to the third aspect of the present invention, the large block and the small block each have a block main body formed in a cylindrical shape having upper and lower openings on the upper and lower surfaces, and are stacked at least vertically. Lumps such as crushed stones are arranged on the boundary between the two.

Accordingly, the weight (self-weight) of each block, the weight of the packing material filled in each block, and the frictional force of the lump disposed on the boundary between the block bodies stacked in the upper and lower stages are determined. , Against earth pressure acting behind the retaining wall.

According to the fourth aspect of the present invention, a partition is provided on the rear upper portion of each of the large block and the small block serving as vegetation blocks, and the partition is filled in a guest room. It is provided with front and rear partition walls that partition at least the front and rear partition walls, and upper and lower partition walls that partition the bulk material disposed on the boundary surface between the block and the block main body stacked on the upper floor.

In this way, the lump disposed on the boundary surface of the upper block main body and the soil in the guest room of the lower vegetation block can be partitioned, and the upper and lower block main bodies can be separated from each other. Lumps are surely arranged on the boundary surface, so that the above-mentioned effects are satisfactorily secured.

In particular, in the case of a large block, the space below the upper and lower partition walls can be secured as a guest room, and the capacity of the guest room can be increased by the partition body. In addition, a large amount of soil can be filled in the guest room, and a good growth environment for high and medium trees to be planted can be secured.

Furthermore, since the filling amount of the lump can be ensured by the partitioning body, the lump and the lump in the block main body stacked on the upper block form the lump from the ground at the retaining wall construction site. The opposing force against earth pressure can be secured well.

According to the fifth aspect of the present invention, the partition body is
It is formed in a box shape with an opening on the upper surface, and forms a water collection / water supply chamber inside.

In this way, the above effects can be ensured well, and rainwater and the like can be stored in the water collection / water supply chamber, and the stored water is continuously supplied to the customer soil. be able to. As a result, the environment for growing vegetated plants can be improved.

According to the present invention, a step is formed at the rear upper part of the left and right side walls of each block main body so as to be at least partially open lower than the front upper part and open at least on the upper side and the left and right sides. ing.

Therefore, when the worker enters and exits the block main body of the large block during the construction work of the retaining wall, such an entry and exit operation can be easily performed by entering and exiting from the step portion.

At this time, since the small block is arranged adjacent to the large block, the small block can be used as a scaffold, and the above-mentioned work of entering and exiting the large block can be performed more easily. .

Also, the steps formed in the block body of each of the small blocks adjacent to each other in the left-right direction are made to be continuous in the extension direction of the retaining wall to be constructed.

Therefore, the block body of each small block is filled with a lump as a packing material, and when the packed lump is compacted by a rolling mill, the lump is continuously extended in the direction of extension of the retaining wall to be constructed. Through the stepped portion, the worker can move continuously and smoothly in the direction of extension of the retaining wall constructed together with the compaction machine, and the compaction work can be performed efficiently.

According to the seventh aspect of the present invention, step portions having steps corresponding to the height of the partition are formed on the left and right side walls of the large block and the small block, which are the vegetation blocks, respectively. In addition, the partition body can be detachably mounted horizontally between the left and right steps.

As described above, when performing the work of entering and leaving the block body of the large block, the work of filling the block body with the block, and the work of compacting the packed block, By removing the partition from the block body, it is possible to make the step formed by giving a level difference by the height of the partition into an open state, and by using the step in the open state, Work can be performed easily.

According to the present invention, the rear wall of each block main body is formed so as to be inclined such that the upper end is located rearward of the lower end.

In this way, by stacking the rear wall of each block body substantially along the cut surface formed on the ground at the retaining wall construction site, the gap between the rear wall of each block and the cut can be obtained. Can be made as small as possible.

As a result, the amount of the backfill material filled in the backfill space can be reduced, the pressure acting on the retaining wall by the backfill material can be reduced, and the constructed retaining wall can be reduced. Good stability can be ensured.

[0157] Then, the stuffing space formed in the block main body can be widened by an amount corresponding to the rear wall being inclined rearward, and the weight of the stuffing material filled in the stuffing space can be increased. As a result, the stability of each block is increased by the increased weight, and a strong retaining wall can be constructed.

In addition, the length of the block main body (the length of the left and right side walls) can be reduced by the amount by which the weight of the packing material can be increased, and the product cost of the block can be reduced. be able to.

[Brief description of the drawings]

FIG. 1 is an explanatory front view of a retaining wall for slope protection as a retaining wall structure according to the present invention.

FIG. 2 is a sectional view taken along line II of FIG. 1;

FIG. 3 is a sectional view taken along line II-II of FIG.

FIG. 4 is a sectional view taken along line III-III of FIG. 1;

FIG. 5 is a front view of a large vegetation block.

FIG. 6 is a plan view of the large vegetation block.

FIG. 7 is a rear view of the large vegetation block.

FIG. 8 is a side view of the large vegetation block.

FIG. 9 is a sectional side view of the large vegetation block.

FIG. 10 is a front view of a large water collecting / water supply body.

FIG. 11 is a plan view of the large water collecting / water supply body.

FIG. 12 is a rear view of the large water collecting / water supply body.

FIG. 13 is a side view of the large water collecting / water supply body.

FIG. 14 is a cross-sectional side view of the large water collecting / water supply body.

FIG. 15 is a front view of a small vegetation block.

FIG. 16 is a plan view of the small vegetation block.

FIG. 17 is a rear view of the small vegetation block.

FIG. 18 is a side view of the small vegetation block.

FIG. 19 is a sectional side view of the small vegetation block.

FIG. 20 is a front view of a small water collecting / water supply body.

FIG. 21 is a plan view of the small water collecting / water supply body.

FIG. 22 is a rear view of the small water collecting / water supply body.

FIG. 23 is a side view of the small water collecting / water supply body.

FIG. 24 is a sectional side view of the small water collecting / water supply body.

FIG. 25 is a front view of a small non-vegetation block.

FIG. 26 is a plan view of the small non-vegetation block.

FIG. 27 is a rear view of the small non-vegetation block.

FIG. 28 is a side view of the small non-vegetation block.

FIG. 29 is a sectional side view of the small non-vegetation block.

FIG. 30 is a cross-sectional side view in a used state of a partition body as another embodiment.

FIG. 31 is a cross-sectional side view in a use state of a block body as another embodiment.

[Explanation of symbols]

 A Block for large vegetation B Block for small vegetation C Block for small non-vegetation 1 Block body 2 Front wall 3 Left side wall 4 Right side wall

Claims (8)

[Claims] 1. A large block and a small block are arbitrarily combined and stacked, and at least the large block is formed as a vegetation block having a guest room, and the large block and the level of the large block are arranged adjacent to the side. A retaining wall structure characterized in that the level of the small blocks in the stacked upper section is substantially the same as that of the upper block. 2. The retaining wall structure according to claim 1, wherein the small block is a vegetation block having a guest room and / or a non-vegetation block having no guest room. 3. The large block and the small block each have a block body formed in a cylindrical shape having upper and lower openings on upper and lower surfaces, and at least a crushed stone is formed on a boundary surface between the vertically stacked block bodies. The retaining wall structure according to claim 1, wherein a lump such as is arranged. 4. A partition body is provided on the rear upper portion of each of the large block and the small block serving as vegetation blocks. The retaining wall structure according to claim 2 or 3, further comprising a front and rear partition wall for vertically partitioning a lump disposed on a boundary surface with a block main body to be stacked and upper and lower partition walls for vertically partitioning. 5. The partition body is formed in a box shape having an upper surface opening,
The retaining wall structure according to claim 4, wherein a water collection / water supply chamber is formed inside. 6. A stepped portion is formed at the rear upper part of the left and right side walls of each block main body so as to be partially lower than the front upper part and open at least in the upper part and the left and right sides. The retaining wall structure according to any one of claims 1 to 5, wherein the step portions formed in the block main body of the small block are continuous with each other in the extension direction of the retaining wall to be constructed. 7. A step portion having a step corresponding to the height of a partition body is formed on each of the left and right side walls of each of a large block and a small block serving as vegetation blocks,
7. The retaining wall structure according to claim 6, wherein the partition can be detachably mounted horizontally between the left and right steps. 8. The retaining wall according to claim 1, wherein a rear wall of each block main body is formed so as to be inclined such that an upper end side is located behind a lower end side. Construction.