JP2603293B2 - Block mat for soil protection - Google Patents

Description

The present invention relates to a soil protection block mat laid on a slope or the like.

[Problems to be solved by the invention]

A block mat formed by fixing a concrete block to the surface of a filter material made of a synthetic fiber woven fabric or the like that restricts permeation of earth and sand is widely used for protecting soil such as slopes. Conventionally, this block mat was generally made by placing a generally rectangular parallelepiped concrete block on the surface of a filter material and fixing it to the entire surface.Therefore, it was heavy, and when it was laid on the soil surface, the soil on the surface was covered with soil. There was a disadvantage that the space to be applied was scarce and vegetation was difficult.

In order to remedy such drawbacks of the conventional block mats, there has been proposed a means for forming a void in which a concrete block is missing on the surface of the block mat to form a soil and a vegetation void. However, such block mats have drawbacks such that the earth and sand that has been occupied by the soil easily flows into the gaps between the blocks, and there is no interference between the blocks at the time of handling such as transportation and laying. .

The present invention has been made in view of the above circumstances. The purpose of the method is to be lightweight and easy to handle, to have a wide gap for the soil on the mat surface laid, hard to allow the soil to flow out, to promote vegetation and to exhibit a stable slope protection effect. The idea is to propose a block mat for surface protection.

[Means and Examples for Solving the Problems]

This soil protection block mat is a soil protection block mat in which a concrete block is fixed to the surface of a synthetic fiber filter material. In the soil protection block mat, every other concrete block is chipped without a checkerboard pattern. Are characterized in that four corner portions are in contact with each other.

Hereinafter, description will be made with reference to the illustrated embodiment. The block mat 1 of FIG. 1 is made of a woven fabric using polyethylene and polyester fibers, and has a concrete block 3 (200 × 200) on the surface of a filter material 2 (width of about 1500 mm) having a mesh size of about 0.2 mm. × 100 (height) mm) is missing every other checkered pattern, and each concrete block 3
The four-direction corner portions 4 are arranged in contact with each other and fixed using an epoxy adhesive. The concrete block 3 has a substantially rectangular parallelepiped shape, and has notches 5 having a circular and semi-circular cross-sections extending vertically in the center, side surfaces, and corner portions 4 respectively. In addition, there are extra ends 6 where the block 3 is not fixed at both ends and one side edge of the filter material 2.

2 and 3 lay the block mat 1 on the slope 7
The soil in which the block 3 on the surface of the block mat is missing is applied with soil 8 and vegetation 9 is applied to form slope protection.

[Action and effect of the invention]

The present invention has the above configuration. This block mat has a checkered pattern formed by arranging every other concrete block on the surface of the filter material so that the block mat is lightweight and has a wide space for applying soil. Therefore, this block mat is excellent in laying workability on a slope or the like, and a relatively large amount of soil can be applied to the laid block mat to promote vegetation. In addition, since the corners of the concrete blocks are in contact with each other in four directions, the voids where the blocks are lost are independent of each other, and the soil in the voids is difficult to flow out. The mutual abutment is good.

As described above, this block mat has good workability of laying on a slope or the like, and can exhibit excellent slope protection.

[Brief description of the drawings]

The drawings show an embodiment of the block mat according to the present invention. FIG. 1 is a plan view of the block mat, and FIGS. 2 and 3 are longitudinal sections of a slope protection work in which a block mat is laid on the slope. It is a plan view and a plan view. DESCRIPTION OF SYMBOLS 1 ... Block mat, 2 ... Filter material, 3 ... Concrete block, 4 ... Corner part, 5 ... Notch part, 6 ... Excess end part, 7 ... Slope, 8 ... Soil, 9 ...... Vegetation.

Claims (1)

(57) [Claims] In a soil protection block mat comprising a synthetic fiber filter material and a concrete block fixed to the surface thereof, every other concrete block is notched to form a checkered pattern. A soil protection block mat characterized by being brought into contact with four-direction corners.