JPH0410257Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention relates to construction blocks for supporting embankments when constructing green belts for roadway medians and sidewalks. .

(b) Conventional technology Recently, when constructing a green belt consisting of trees and other plants planted in rows on the median strip of a roadway or on a sidewalk, the trees are first planted by embanking the roadbed. However, various laying blocks are used to support the embankment from both the left and right sides.

Conventionally, there are two types of green belt laying blocks: one is a cast-in-place type in which concrete is poured into a mold directly on the roadbed and hardened, and the other is a built-up block in which already completed concrete blocks are buried approximately 10 cm into the roadbed. There are two types of blocks, but both can be said to be simply wall-shaped blocks designed to support the embankment of the greenbelt.

(c) Problems that the invention aims to solve One of the conditions for a green belt is the ability to sweep water well. Regular watering is essential for greenbelt plants, but it is necessary to ensure that water seeping through the embankment quickly penetrates into the roadbed and does not flow onto the road surface.

The conventional green belt laying blocks mentioned above are very good in terms of water sweeping, and the supplied water permeates from the embankment into the roadbed without any hindrance.

However, green belts using conventional green belt laying blocks have three problems that must be solved.

The first problem is workability when constructing a green belt. In the case of stacked blocks, they are simply wall-shaped blocks, so in order to increase stability, a roadbed is used.
You have to dig about 10cm deep and bury it.

Cast-in-place blocks require concrete to be mixed on-site, poured into molds, and then allowed to harden.

In addition, in order to keep the width of the green belt constant, the distance between the blocks on both sides was measured before the green belt was laid.

The second problem is the stability of the green belt laying blocks. Since it is simply a wall-shaped block, it is unstable and has a high possibility of tilting due to the pressure of the embankment. Therefore, various restrictions are imposed on its use, and various reinforcements such as joints are required.

The third problem is safety as a separator. Since it was simply a wall-shaped block, it could not prevent cars from coming into contact with it or driving into the green belt.

This invention solves the above problems and provides a construction block that combines work efficiency in construction work, stability in supporting the embankment, safety as a separation strip, and ease of sweeping water from the embankment to the roadbed. The purpose is to

(d) Means for solving the problem This idea is to erect a support wall for embankment support halfway forward of the upper surface of the block body, and the block body at the front end of this support wall has a ridgeline projecting toward the road surface. In a block which forms a section, the upper surface of the block body on the rear end side is an embankment accumulation surface, and has a through space in the center of the rear end side of the block body, the blocks are faced so as to touch each other at the rear end surface, A laying block characterized by being laid in series.

(e) Embodiment Hereinafter, one embodiment of the laying block according to this invention will be described based on the attached drawings.

FIG. 1 shows a single block 1 constituting the laying block according to this invention.

2 in the figure represents the block body. The bottom of the block body 2 is flat.

4 in the figure is a bearing wall for embankment 3 support. It is erected midway toward the front of the upper surface of the block body 2.

6 in the figure is a ridge line protrusion. The block body 2 on the front end side of the support wall 4 forms a ridge line protrusion 6. The corners of the ridgeline protrusion 6 form rounded ridgelines.

7 in the figure represents the embankment accumulation surface. This is the portion corresponding to the upper surface of the block body 2 on the rear end side of the support wall 4. When viewed from above, it has the shape of a frame.

8 in the figure represents a through space. This is a part surrounded by a frame-shaped embankment pile surface 7.

Block 1 configured as described above is shown in Figure 2.
As shown in FIG. 3, the blocks are arranged facing each other so as to touch each other at the rear end surface 9 of the block main body 2, and
It is laid directly on the roadbed 10 in contact with the road surface 5 on both sides. For this reason, the supporting walls 4 on both sides
The spacing is always constant, making the installation process simple and efficient. Of course, in order to increase stability, the roadbed 1
Digging down 0 is optional, but even in that case, a depth of about 1 cm is sufficient.

The embankment 3 is deposited on the embankment accumulation surface 7 and supported by the bearing wall 4, and is also deposited on the roadbed 10 through the through space 8.

As a result, the embankment 3
Trees 11 planted in this area can take root into the roadbed 10 through the through space 8.

Further, since the water supplied to the trees 11 is quickly absorbed from the embankment 3 into the roadbed 10 through the through space 8, the embankment accumulation surface 7 does not become an obstacle to water sweeping.

The laying blocks according to this invention, which are laid in this way, are very stable because the inverted T-shaped blocks 1 are laid facing each other on both sides. Then, the embankment 3 is deposited on the embankment accumulation surface 7, and the embankment 3 passes through the through space 8 and passes through the roadbed 10.
Furthermore, the roots of the trees 11 are rooted into the roadbed 10 through the through space 8, so that movement of the block body 2 due to the force applied by the embankment 3 to the support wall 4 is reliably prevented. I can do it.

Furthermore, since the ridge line protrusion 6 protrudes from the support wall 4 toward the road surface 5, the vehicle body will not come into contact with the support wall 4 even if the tires of the automobile come into contact with it. Since the corners of the ridge line protrusion 6 form round ridge lines, even if a car tries to drive into the green belt, the tires of the car will spin around the edge of the ridge line protrusion 6, making it easy to prevent the car from driving into the green belt.

(f) Effects of the invention According to the construction block of this invention, there is no need for work processes such as digging the roadbed one step lower or pouring concrete into molds on site, and there is no need to measure the spacing between the supporting walls on both sides. Since it can be laid on top, work efficiency is significantly improved.

Since the inverted T-shaped blocks are laid facing each other from both sides, it is stable and will not tilt even if the bearing wall receives the pressure of the embankment. Also, due to the action of the embankment pile surface and the penetration space, it does not move laterally.

In terms of safety, the ridge line protrusion can prevent accidents of cars contacting the support wall and driving into the green belt.

Furthermore, it has extremely high industrial utility value, as it has excellent water-sweeping properties, just like conventional products.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a single block constituting the laying block according to this invention, Fig. 2 is a perspective view showing the basic structure of the laying block according to this invention, and Fig. 3 is a perspective view showing the basic construction of the laying block according to this invention. FIG. 3 is a sectional view showing the block in use. Main symbols in the diagram: 1... Block, 2... Block body, 3... Embankment, 4... Supporting wall, 5... Road surface, 6... Ridgeline protrusion, 7... Embankment pile surface, 8...
... Penetration space, 9... Rear end surface.

Claims (1)

[Scope of Claim for Utility Model Registration] A support wall 4 for supporting the embankment 3 is erected midway forward of the upper surface of the block body 2, and the block body 2 on the front end side of this support wall 4 has a ridgeline protruding toward the road surface 5 side. 6, the upper surface of the block body 2 on the rear end side is the embankment accumulation surface 7, and the block 1 has a through space 8 at the center of the rear end side of the block body 2. The laying blocks are characterized by being laid facing each other so as to touch each other, and laid in series.