JPS6340893B2 - - 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 Conventional retaining walls use multiple pieces of concrete, cover the front of the retaining wall with concrete, and place chestnut stone 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, greenery is lost, and the landscape becomes desolate. At the same time, since the entire retaining wall becomes a rigid body, uneven settlement of the ground may cause cracks in the retaining wall, and in extreme 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 A front wall that is tilted forward is formed with a height approximately twice that of the front wall, and is tilted backward at the upper end of the front wall, and blocks are built on both sides of the front wall that tilts forward. When this is done, side walls that overlap vertically to form a continuous wall are integrally provided, and a wall that holds the soil is continuously installed between the backs and tails of the side walls, and a block for a greening retaining wall is formed in a frame shape. In addition to constructing retaining walls by stacking masonry in a staggered manner and in multiple stages, soil is filled in the voids surrounded by each block, and vegetation is applied to the exposed soil surface to green the slope in a staggered manner. After construction and development, the self-weight and the weight of the soil carried by each block combine 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. It is characterized by restoring the natural environment in residential areas, etc., and at the same time 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 3, a front wall 1 that tilts forward
On both sides thereof, side walls 2, 2 are integrally provided, the height of which is approximately twice that of the front wall 1, and which are tilted backwards at the upper end of the front surface and form a dogleg shape in connection with the front wall 1. , a soil-holding wall 4 with a through hole 3 bored in the middle of the wall surface is continuously installed between the rears of the side walls 2 and 2 to form a bottomless frame-shaped greening retaining wall block 5. .

Therefore, the blocks 5 for the greening retaining wall are arranged in a row on the upper surface of the foundation at intervals slightly narrower than the width of the blocks, and each empty space 6 is filled with soil 7 to form the lowest layer. Install. Next, the side walls 2, 2 of the other green retaining wall blocks 5 are placed over the opposing side walls 2, 2 of the adjacent green retaining wall blocks 5, 5, and stacked in a staggered manner. The empty space 6 is filled with soil 7 and the second stage is installed. Thereafter, a desired number of greening retaining wall blocks 5 are constructed in multiple stages using the same method, and the slope of the soil exposed on the surface is expressed in a staggered manner on the retaining wall surface, and the soil surface is pounded with soil and compacted. The slope is greened in a staggered manner by fixing pine-like soil clods with grass on the surface of the soil 7 using bamboo skewers or the like, or by spraying seeds and fertilizer onto a net-like sheet. The vegetation is created by stretching a sheet on the slope surface or by spraying it onto the slope surface with a spray gun, or shrubs, flowers, etc. may be grown in the soil 7 (not shown).
As another example of the construction method, the side walls 2, 2 of adjacent greening retaining wall blocks 5, 5 are brought into contact with each other, the empty space 6 is filled with soil 7, and the lowest stage is arranged in a row. There is also a method (not shown) in which the second and higher tiers are constructed in a so-called brick structure, in which blocks 5 for greening retaining walls are stacked and connected on the lower side walls 2, 2 that can be contacted.

"Effects of the Invention" When a retaining wall is constructed using the block 5 for afforestation retaining wall according to the present invention, the weight of the block 5 for afforestation retaining wall and the soil 7 filled in the void space 6 are applied to the back of the retaining wall. A retaining wall with a stable self-supporting structure is constructed because it maintains a balance with the applied earth pressure and the side walls 2 of the greening retaining wall blocks 5 overlap to form an upwardly continuous wall. It is not necessary to place backfilling materials such as concrete or chestnut stone. Furthermore, by stacking the blocks in a staggered manner, the soil area exposed at the top of the front wall 1 is extremely wide.When a lawn grows, the slope is greened in a staggered manner, and the front surface of the green retaining wall block 5 is The retaining wall is concealed and the entire retaining wall is covered with greenery, restoring the natural environment before land reclamation.The construction is easy and quick, no backfilling material is required, and the greening retaining wall blocks 5 are arranged in a staggered pattern. This combination of masonry construction saves materials and is highly economical.
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. On the other hand, the greening retaining wall block 5 according to the present invention has a non-rigid structure in which the void space 6 is filled with soil and each greening retaining wall block 5 is not fixed to each other, so that local concentration of earth pressure is prevented. Even if there is, the soil 7 in the area will be pushed out to the front of the retaining wall and bulge, and will not have any negative effect on the greening retaining wall block 5 itself, so there is no risk of cracks occurring or the retaining wall collapsing. Not at all. In addition, even if the ground subsides or rises, each block is flexibly joined by a so-called pin joint that is assembled only at each side wall, so the entire retaining wall can be fixed by bending the blocks slightly at the subsidence or rise area. It prevents it from being destroyed. As shown in Fig. 4, the through holes 3 provided in the wall 4 that hold the soil connect the soil 7 filled in the void 6 in the block with the ground behind, so that the soil is integrated and evenly absorbs moisture and nutrients. is supplied to the lawn to promote uniform growth of the lawn.

The slope has a gentle slope, and by covering it with grass, the soil 7 is prevented from being washed away by heavy rain, ensuring the self-sustaining stability of the retaining wall, and the front surface of the retaining wall constructed in this way is The dogleg-shaped protrusion formed by the front wall 1 and the slope of the soil 7 exposed on the surface disperses and reflects vehicle noise toward its source, preventing the noise from spreading far away. Not only does it have an excellent level attenuation effect, but the soil and the grass, shrubs, etc. that grow on the slope also have a noise-muffling 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 or cloth-stacked concrete blocks.

[Brief explanation of the drawing]

Fig. 1 is a front view of the block for greening retaining wall according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a sectional view taken along line AA in Fig. 1, and Fig. 4 is a vertical sectional view showing the construction state. It is. 1...Front wall, 2...Side wall, 4...Wall that holds soil, 5...Block for greening retaining wall, 6...Vacancy, 7...Soil.

Claims (1)

[Claims] 1. On both sides of the front wall that tilts forward, the height is approximately twice that of the front wall, and the front wall is tilted backward at the upper end of the front surface, and when the blocks are stacked, they overlap vertically to form a continuous wall. A block for a greening retaining wall which is formed into a frame shape by integrally providing a side wall and connecting a wall that holds soil between the rear and rear ends of the side wall.