JPS6340892B2 - - Google Patents

Description

[Detailed description of the invention] "Purpose of invention" a Industrial application field The present invention relates to blocks for greening retaining walls.

b. Prior Art A conventional retaining wall uses a large number of concrete blocks, covers the front side of the retaining wall with concrete, and places chestnut or concrete behind it.

c Problems that the invention aims to solve It takes time and effort to cast expensive backfilling materials such as chestnut stone and concrete behind the retaining wall, and once the retaining wall is completed, nature is destroyed and greenery is damaged, resulting in a deserted landscape. At the same time, the entire retaining wall becomes a rigid body, which causes cracks in the retaining wall due to uneven subsidence of the ground, and in severe cases, the retaining wall may collapse due to the concentrated load of locally acting earth pressure. .

"Structure of the Invention" a Means for Solving the Problems Side walls are provided at both ends of the front wall that leans forward, and a wall that holds the soil is connected between the rear and rear ends of the side walls, and a planar quadrilateral is formed. A block for a greening retaining wall integrally molded in the shape of a frame is arranged between the side walls of adjacent blocks arranged at intervals on the lower tier so that the side walls are continuous approximately vertically when the blocks are stacked. Cross over and stack the upper blocks at intervals,
By filling the voids formed between each block with soil and planting vegetation on the surface of the exposed soil, the walls are greened in a checkerboard pattern, and the weight of the blocks and the weight of the soil carried by each block are reduced. By joining together to form a non-rigid gravity retaining wall that maintains a balance with the earth pressure behind the retaining wall, and by planting vegetation on the slope, we will restore the natural environment to residential areas after land development.
It is also characterized by saving materials.

b. Effects and Embodiments The embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 to 5, a front wall 1 that tilts forward
A convex portion 2 is provided at the rear end of the upper surface, a recess 3 is provided at the rear end of the lower surface, and a recess 3a is provided at the middle of the lower surface.
The side walls 4, 4 provided with this are integrally provided with a slight recess from the upper end of the front wall 1, and a wall 5 that holds the soil is provided continuously between the rear ends of the side walls 4, 4, so as to form a flat surface. A greening retaining wall block 6 in the shape of a quadrilateral frame is formed. As another embodiment of the greening retaining wall block 6, as shown in FIGS. 6 to 10, the soil-holding wall 5 is slightly protruded from the upper end of the side wall 4, and through holes 7 are formed in the side walls 4, 4. , 7 are drilled.

As shown in FIGS. 11 and 12, the greening retaining wall block 6 is installed on the top surface of the foundation by slightly excavating the ground surface, which is slightly narrower than the width of the greening retaining wall block 6. They are arranged in rows with intervals maintained and spaced apart from each other, and each empty space 8 is filled with soil 9, and the lowest stage is installed. Next, the side walls 4, 4 of other green retaining wall blocks 6 are placed over the opposing side walls 4, 4 of the adjacent green retaining wall blocks 6, 6 arranged at intervals on the lower tier. At the same time, the second stage is installed by filling each empty space 8 with soil 9. At this time, the front wall 1 slightly protrudes from the front ends of the side walls 4, 4.
The lower front end of the front wall 1 of the second stage block fits into the inner surface of the upper end, and the convex part 2 of the upper and lower blocks fits together.
The recess 3 is fitted into the recess 3.

Thereafter, a desired number of greening retaining wall blocks 6 are constructed in multiple stages using the same method, and the soil 9 exposed on the surface is formed in a checkerboard pattern on the retaining wall surface, and the soil 9 is covered with soil. A pine-shaped soil clod with compacted grass and vegetation is placed on the surface of the soil 9 and fixed using bamboo skewers to form a lawn, or seeds and fertilizer are sprayed onto a net-like sheet and the sheet is The vegetation can be spread on the slope surface or sprayed onto the slope surface with a spray gun, and shrubs, flowers, etc. may be planted on the soil 9.

"Effects of the Invention" When a retaining wall is constructed using the block 6 for afforestation retaining wall according to the present invention, the weight of the block 6 for afforestation retaining wall and the soil 9 filled in the void space 8 are applied to the back of the retaining wall. The side walls 4 of the greening retaining wall blocks 6 overlap each other approximately vertically to form a wall that continues upward while maintaining a balance with the applied earth pressure. 2 and the recess 3 to prevent slipping and shifting, a retaining wall with a stable self-supporting structure is constructed, and therefore it is not necessary to particularly cast backfilling material such as concrete or chestnut stone. .

In addition, the slope of the soil 9... is formed in a checkerboard pattern on the retaining wall surface, so the vegetation area is extremely wide, and the growth of the lawn covers the front of the greening retaining wall block 6, and the entire retaining wall is The area will be covered with greenery, restoring the natural environment that existed before the land was developed. Furthermore,
The construction is easy and quick, and the fact that no backfilling material is required and that every other green retaining wall block 6 is stacked at a distance saves materials and is economically superior. . Moreover, since the soil 9 filled in the empty space 8 is directly continuous with the ground behind it, the plants will 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 greening retaining wall block 6 according to the present invention, the void space 8 is filled with soil 9, and each greening retaining wall block 6 is of a non-rigid structure that does not adhere to each other. Even if there is a concentration of soil pressure, the soil 9 in the area will be pushed out to the front of the retaining wall and bulge, and it will not have any negative effect on the greening retaining wall blocks 6 themselves, so cracks may occur or the retaining wall There is no risk of it collapsing. In addition, even if the ground subsides or rises, each block is flexibly joined by masonry pin joints only at each side wall. This prevents it from being destroyed. The recesses 3a and the through holes 7 provided in the side wall 4 allow the filled adjacent soil 9 to be continuous with each other, so that the soil is integrated and evenly supplies moisture and nutrients to the lawn.
It promotes uniform growth of the lawn.

Therefore, the slope is formed by dividing every other section on the retaining wall surface, has a gentle slope, and is covered with grass to prevent the soil 9 from flowing out due to heavy rain, thereby increasing the self-sustaining stability of the retaining wall. The front surface of the retaining wall secured and constructed in this way has a checkered pattern of numerous doglegged protrusions formed by the front wall 1 and the slope of the soil 9 exposed on the surface. , which disperses and reflects car noise back to its source, prevents it from spreading far away, and has an excellent noise level attenuation effect.
The soil 9 and the grass, shrubs, etc. grown on the slope of the soil 9 absorb noise and have a silencing effect that reduces noise pollution.

As described above, the greening retaining wall block according to the present invention is a new and innovative block that is completely different from conventional valley-stacked concrete blocks.

[Brief explanation of drawings]

Fig. 1 is a front view of a block for greening retaining wall according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a rear view thereof, Fig. 4 is a side view thereof, and Fig. 5 is an A in Fig. 1. -A
6 is a front view showing another embodiment of the greening retaining wall block, FIG. 7 is a plan view, FIG. 8 is a rear view, FIG. 9 is a side view, and FIG. A sectional view taken along line A-A in Fig. 6, Fig. 11 is a partially cutaway front view showing the state of construction of a retaining wall constructed using blocks for greening retaining walls, and Fig. 12 is an A-A cross-sectional view shown in Fig. 11.
FIG. 1...Front wall, 4...Side wall, 5...Wall that holds soil, 6...Block for greening retaining wall, 8...Vacancy, 9...Soil.

Claims (1)

[Claims] 1. For greening retaining walls, which are formed integrally into a planar quadrilateral frame shape, with side walls provided at both ends of a front wall that tilts forward, and a wall that holds the soil connected between the rear and tail ends of the side walls. The blocks are assembled so that every other block in the upper stage is spaced apart between the side walls of adjacent blocks arranged at intervals in the lower stage so that the side walls of the block are substantially vertically continuous when the blocks are assembled. Accumulate,
A block for a greening retaining wall, characterized in that the wall surface is greened in a checkerboard pattern by filling the voids formed between each block with soil and planting vegetation on the surface of the exposed soil.