JPS6227209B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing a vegetated retaining wall in which grass or trees are planted on the soil surface exposed in front of the retaining wall, and the retaining wall is self-supporting on both sides of the soil receiving plate with the front wall tilted forward. In order to ensure stability, when the blocks are assembled, the side walls that overlap vertically to form a continuous wall are integrally installed, and the side walls are made of concrete or synthetic material and have a chevron-shaped bulge at the front of the upper surface. Basic blocks for greening retaining walls made of resin material are arranged in rows at intervals of every other block in the first stage, and in the second and higher stages, the upper blocks are placed between the opposing side walls of the lower adjacent blocks. The walls on both sides of the block are stacked in a staggered manner, and the front wall of the rectangular plate is tilted forward at the top to form a soil receiving plate.Both sides of the top block are stacked between the opposing side walls of the lower adjacent basic blocks. At the same time, a retaining wall was constructed one by one while filling the voids on the soil receiving board with soil, and the soil was held in the voids on the soil receiving board in a shape and the exposed slope was covered with soil. After compacting and compacting, the grass grown on the slope is fixed to the pine-like soil using bamboo skewers, or the sheet is spread by spraying seeds and fertilizer onto a net-like sheet. The slope is greened in a staggered manner by spreading it on the surface or by spraying the mixture of seeds and fertilizer on the slope with a spray gun, and the weight of the blocks and the weight of the soil carried by each block are reduced. It is a non-rigid gravity retaining wall that works together to maintain balance with the earth pressure behind the wall, and by planting vegetation on the slope, it restores the natural environment to residential areas after land development. The purpose is also to save materials.

Conventionally, constructing a retaining wall requires the time and effort of pouring expensive backfill materials such as chestnut stone or concrete to prevent collapse due to inadequate underground drainage, and once the retaining wall is completed, nature is destroyed and greenery is lost. In addition, the conventional concrete retaining wall, in which many concrete blocks are used and concrete is poured and masonry behind them, becomes a rigid body as a whole, and the retaining wall is damaged due to uneven subsidence of the ground. Cracks may occur in the wall, and in severe cases, the retaining wall may collapse due to the concentrated load of locally acting earth pressure.

The present invention eliminates such drawbacks, and an embodiment thereof will be described in detail with reference to the drawings.As shown in FIGS. 4 to 9, the front wall 1a is tilted forward and the cross section is
The front wall 1a has an inclined inner surface on both sides of the long rectangular soil receiving plate 1 with a wide width.
The side walls 2, 2 each having a chevron-shaped bulge 2a, which is the same as the above, are provided on the front part of the upper surface thereof, and a concave part 3 is provided in the middle of the upper end surface of each side wall 2, and a concave part 3 is provided in the middle of the upper end surface of each side wall 2. Convex portion 1 that prevents the block from sliding to the left or right
0', a recess 10 is provided along the length of the lower surface of the rear end of the soil receiving plate 1, and a wall 1' for holding the soil is further provided by bending the rear end of the soil receiving plate 1 upward. As shown in Figures 1 to 3, the basic blocks 4 for the greening retaining wall are placed on the top of the foundation by slightly excavating the ground surface, keeping an interval slightly narrower than the width of the basic blocks 4. They are arranged in alternate rows, and the empty space above each soil receiving plate 1 is filled with soil 5, and the bottom layer is installed. Next adjacent basic block 4,4
The side walls 2, 2 of the other basic block 4 are placed over the opposing side walls 2, 2 of the basic block 4, and the blocks are stacked in a staggered manner.
Fill the spaces above each soil receiving plate 1 with soil 5 and install the second stage. Thus, the lower front end of the front wall 1a of the second stage block is in close contact with the inner surface of the bulge 2a of the side wall 2. Thereafter, a large number of basic blocks 4 are constructed in multiple stages using the same method, and as shown in FIGS.
A plate-shaped connecting end block 6 having the same shape as the side wall 2 of the basic block 4, that is, a chevron-shaped bulge 2a is provided on the front part of the upper surface, and a convex part 10' and a recess 10 are provided on the upper and lower surfaces of the rear end. Recess 10 and protrusion 1 provided in 4
The retaining wall is stabilized by inserting a mating end block 6 that fits into the retaining wall 0' and prevents it from shifting to the left and right.
Then, the soil 5 is held in a shape when seen from the front by the soil receiving plate 1, and the slope exposed on the surface is pounded with soil and compacted, and a pine-shaped soil clod with grass vegetation is placed on top of the soil 5. The slope is greened in a staggered manner by placing it and fixing it using bamboo skewers (not shown) or the like, and spreading the grass thereon. Also, shrubs, flowers, etc. may be planted on the soil 5. Basic block 4 stacked on the top level
Similar to the basic block 4 installed at the bottom, the top edge of the block 4 is staggered and uneven, so the slope of the soil 5 filled into the void above the soil receiving plate 1 is uneven, so the slope of the soil 5 filled in the void above the soil receiving plate 1 is uneven. The front wall is tilted forward as shown in FIGS. 17 to 20 on the side walls 2, 2 of the matching basic block 4, or on the side wall 2 and the mating end block 6, and a rising bent edge 7 is formed with a cross section approximately in the shape of 0. Both sides of the rectangular plate-shaped top block 8 are mounted,
Fill the top block 8 with soil, match the slope of the embankment with the slope of the soil 5 on the soil receiving plate 1 that holds it, and spread grass on each slope as described above. . In addition, the wall 1' standing up at the rear end of the soil receiving plate 1 provided on the basic block 4 also serves as a reinforcing rib, and as shown in Figure 3, it holds water and soil in the soil receiving plate 1 and prevents the soil from drying out. This prevents the lawn from withering and dying, and the recesses 3 provided on the upper surface of each side wall 2 are intended to ensure continuity between adjacent soils 5.

As another example of the basic block, as shown in FIGS. 21 to 25, the wall 1' that holds the soil is moved forward and erected closer to the center, and the lower rear corner of the soil receiving plate 1 is chamfered. When lifting the basic block 4, the basic block 4 is used as a hook part 11 of a lifting tool.
0' and a recess 10, or as shown in FIGS. 26 to 30, the soil receiving plate 1 is of a raised bottom type and the wall 1' that holds the soil is a downward rib, and the side walls 2,
There is an example in which a chevron-shaped bulge 2a is provided at the front end of the basic block 2, and a recess 10 and a protrusion 10' are provided on the upper and lower end surfaces to fit into the respective other basic blocks 4. As shown in FIGS. 36 to 40, the soil receiving plate 1 is of a raised bottom type and the wall for holding the soil facing downward is omitted, and the soil receiving plate 1 is of the top end of the side walls 2, 2, as shown in FIGS. In some cases, the soil receiving plate 1 is installed horizontally from the side wall 2, and a wall 1' is provided to hold the soil over the entire length of the rear end of the side wall 2, or as shown in FIGS. There is an example where a wall is installed horizontally from the top, but the wall that holds the soil facing downward is omitted. As another embodiment of the joint end block 6, as shown in FIGS. 46 to 49, the basic block 4 is provided with a recess 10 and a convex portion 10' by notching or protruding the upper and lower surfaces of the rear end. There is an example in which the recess 10 and the protrusion 10' are fitted. Then,
When constructing a curved part of a retaining wall, keep the spacing between the basic blocks 4 arranged in the upper row narrower or wider than the spacing between the basic blocks 4 arranged in the lower row, and set the blocks at the desired angle. Since the blocks must be bent and laid, as shown in FIG. 50, the upper basic block 4 and the lower basic block 4 are adjusted and shifted freely, and the blocks are bent and laid at a desired angle.

As mentioned above, according to the present invention, basic block 4
The weight of the soil and the weight of the soil 5 filled on the soil receiving plate 1 are applied to maintain a balance with the earth pressure applied behind the retaining wall, and the side walls 2 of the basic blocks 4 overlap to form a wall that continues upward. In addition, the blocks are stabilized by fitting the protruding portion 2a of the side wall 2 and the lower front end of the front wall 1a and fitting the recess 10 and the protruding portion 10' to prevent slipping or shifting in the front, back, left, and right directions. A retaining wall having a self-supporting structure is constructed, and therefore it is not necessary to particularly cast backfilling materials such as concrete or maroon stone. In addition, by holding the soil 5 in a shape when viewed from the front by the side walls 2, 2 and the soil receiving plate 1, and forming it in a staggered manner on the retaining wall surface, the exposed surface of the soil is extremely wide, and the soil is covered with grass. When it grows, the slope will be greened in a staggered manner, the front of basic block 4 will be hidden, and the entire retaining wall will be covered with greenery, restoring the natural environment before land reclamation.The construction is easy and quick. The fact that no backfilling material is required and the basic blocks 4 are stacked in a staggered manner together saves on materials and is highly economical. Furthermore, since groundwater is retained in the soil receiving plate 1, plants do not wither even during drought periods. Furthermore, because conventional concrete retaining walls form a rigid body as a whole, if the earth pressure behind the retaining wall concentrates locally, cracks may occur in those areas, or in extreme cases, the retaining wall may collapse. In contrast, in the present invention, soil 5 is filled into the void on the soil receiving plate 1 of the basic block 4, and each basic block 4 is of a non-rigid structure that does not stick to each other. Since the soil 5 is pushed out to the front of the retaining wall and rises, and does not have any adverse effect on the basic block 4 itself, there is no risk of cracks occurring or the retaining wall collapsing. Furthermore, even if the ground subsides or rises, each block is flexibly connected by masonry and so-called pin joints only at each side wall, so the entire retaining wall will be destroyed by slight bending of the block at the subsidence or rise area. It prevents people from doing so. The concave portion 3 provided in the side wall 2 allows the filled adjacent soil 5 to be continuous with each other, so that the soil is integrated and uniformly supplies water and nutrients, thereby promoting uniform growth of the lawn.

Therefore, the slope is formed in a staggered manner, has a gentle slope, and is covered with grass to prevent the soil 5 from flowing out due to heavy rain, thereby ensuring the self-sustaining stability of the retaining wall. The front surface of the retaining wall constructed using the above-mentioned method has a number of dogleg-shaped protrusions formed by the front wall 1a of the soil receiving plate 1 and the slope of the soil 5 exposed on the surface in a staggered manner. The noise is dispersed and reflected back to the source, preventing it from spreading over long distances, and has an excellent attenuating effect on the noise level.The soil 5 and the grass, shrubs, etc. grown on the slope of the soil 5 absorb the noise and reduce noise pollution. It also has the effect of reducing noise.

As described above, the present invention is a new and innovative invention that is completely different from the conventional stacked concrete blocks or stacked concrete blocks.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway front view showing the construction state of the retaining wall, FIG. 2 is a rear view of the same, and FIG. 4
The figure is a front view of the basic block, Figure 5 is a plan view of the same,
Fig. 6 is a rear view of the same, Fig. 7 is a side view of the same, Fig. 8 is a sectional view taken along line A-A in Fig. 4, Fig. 9 is a perspective view of the same, Fig. 10 is a front view of the joint end block, and Fig. 10 is a front view of the joint end block. Fig. 11 is a plan view of the same, Fig. 12 is a bottom view of the same, Fig. 13 is a left side view of the same, Fig. 14 is a right side view of the same, and Fig. 15 is a right side view of the joining end block with the uneven portions shown in reverse. ,
Figure 16 is a sectional view taken along line A-A in Figure 10.
Fig. 7 is a front view of the top block, Fig. 18 is a plan view thereof, Fig. 19 is a perspective view thereof, Fig. 20 is a sectional view taken along line AA in Fig. 17, and Fig. 21 is another implementation of the basic block. A front view showing an example, FIG. 22 is a plan view of the same,
Figure 23 is a rear view of the same, Figure 24 is a side view of the same, and Figure 24 is a side view of the same.
5 is a sectional view taken along the line AA in FIG. 21, FIG. 26 is a front view showing another embodiment of the basic block, and FIG.
Figure 7 is a plan view of the same, Figure 28 is a rear view of the same, Figure 29 is a side view of the same, Figure 30 is A-A in Figure 26.
31 is a front view showing another embodiment of the basic block, FIG. 32 is a plan view of the same, FIG. 33 is a rear view of the same, FIG. 34 is a side view of the same, and FIG.
36 is a front view showing another embodiment of the basic block, FIG. 37 is a plan view, FIG. 38 is a back view, and FIG. 39 is a side view.
Figure 40 is a cross-sectional view taken along line A-A in Figure 36;
Figure 1 is a front view showing another embodiment of the basic block;
Fig. 42 is the same plan view, Fig. 43 is the same side view, and Fig. 4
Figure 4 is a rear view of the same, Figure 45 is A in Figure 41.
-A sectional view, Fig. 46 is a front view showing another embodiment of the joint end block, Fig. 47 is a left side view of the same, Fig. 48 is
The figure is a right side view of the same, FIG. 49 is a perspective view of the same, and FIG. 50 is a rear view showing a state in which the curved portion of the retaining wall is constructed. 1...Soil receiving plate, 1a...Front wall, 1'...Wall that holds the soil, 2...Side wall, 2a...Bulging part,
4...basic block, 6...junction block, 8...
...Tenda block.

Claims (1)

[Claims] 1. When blocks are stacked on both sides of a soil receiving plate with the front wall tilted forward, side walls are provided that overlap vertically to form a continuous wall, and a chevron-shaped bulge is provided at the front of the upper surface of the side wall. The basic blocks for the greening retaining wall that have been set up are arranged in a row with each block separated in the first stage, and in the second and higher stages, they are placed on both sides of the upper block across the opposing side walls of the lower adjacent blocks. The walls are mounted and stacked, and the front wall of the rectangular plate on the top level is tilted forward to form a soil receiving plate. A method for constructing a vegetation retaining wall, which is characterized in that the slope is greened in a staggered manner by the vegetation on the exposed surface of the soil by filling the voids on the soil receiving plate with soil and holding the soil in a shape.