JPS61113911A - Block mat - Google Patents

Abstract

PURPOSE:To prevent production of a defect part, by a method wherein a lattice- shaped or a reticulate strereosubstance layer is superposed on the upper surface of a base sheet, and the stereosubstance layer is buried in a concrete block. CONSTITUTION:A lath wire net 2 is disposed on the upper surface of a base sheet 1 formed by water permeable fabric in a manner that the wire net separated slightly from the upper surface of the sheet 1. the wire net 2 is buried in the bottom parts of concrete blocks 3, each formed about in a rectangular parallelepiped, laid on the upper surface of the sheet 1, and the concrete blocks 3 are coupled with each other through the wire net 2. this prevents the concrete blocks 3 from being slipped off even if an adhesion part between the concrete blocks and the sheet 1 is peeled, resulting in prevention of the occurrence of a defect to a block mat.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention is a block that protects the floors and slopes of coasts, river embankments, waterways, etc., and slopes of railways, roads, reclaimed land, etc., and prevents erosion. Regarding mat materials.

[Conventional technology]

Conventional block mat materials are constructed by fixing a plurality of concrete blocks individually to the upper surface of a water-permeable or water-impermeable base sheet such as a woven fabric, a non-woven fabric, or a waterproof sheet.

For this reason, when the laid block mat material deteriorates and the adhesive portion peels off, the individual block mat materials fall off from the base sheet, resulting in a defect in the block mat material.

[Purpose of the invention]

This invention was made in view of the above circumstances, and its purpose is to prevent individual concrete blocks from falling off from the base sheet for a long period of time, even if the bonding between the concrete blocks and the base sheet peels off. The purpose of the present invention is to propose a block mat material that does not cause defects. Another purpose is to propose a block material that can be used at a construction site by pouring concrete blocks onto the top surface of a base sheet that has been laid in advance to form a block mat material that meets the conditions of the construction site. be.

[Structure of the invention]

The present invention will be explained below with reference to illustrated embodiments. .

In FIG. 1, a three-dimensional object layer is formed by layering a lath wire mesh 2 floating a small distance from the top surface of the sheet on the top surface of a base sheet 1 made of a water-permeable fabric woven using polyester fiber threads. It is arranged. This three-dimensional object layer, that is, the lath wire mesh 2, is embedded in the bottoms of almost rectangular parallelepiped concrete blocks 3 laid out on the surface of the sheet, and the concrete blocks 3 are connected to each other by the lath wire mesh 2. There is.

If the lath wire mesh 2 is bent three-dimensionally, leave it as is.
It is sufficient to simply place and overlap the base sheet 1, but if the base sheet 1 is in a flat shape, a metal or synthetic resin fixture (not shown) is placed between the base sheet 1 and the lath wire mesh 2. Arranged,
Lath wire mesh from the top of the base material 7 to 1 from several U to several 10111E
Float 1 Lock and place.

FIG. 2 also shows an embodiment of this invention. This block mat material has a synthetic resin grid 4 placed on top of a water-impermeable base sheet 1. The lattice body 4 is bent upward into a trapezoidal shape at a position corresponding to the bottom surface of the concrete blocks 3 laid out on it to form a three-dimensional object layer. The trapezoidal portions of the lattice bodies 40 bent upward are embedded in the bottoms of the concrete blocks 3 laid out on the upper surface of the concrete blocks 3, and the concrete blocks 3 are connected to each other by the lattice bodies 4.

A layer of a net-like material such as a lath wire mesh or a three-dimensional object such as a lattice may be simply placed on the upper surface of the base sheet, but may also be fixed to the base sheet at appropriate intervals. Concrete Dobmic 3
Alternatively, the concrete block 3 may be directly placed on the base material sheet 1 and solidified, and then fixed by concrete adhesion.

In addition to the above-mentioned lath wire mesh and lattice body, net-like bodies and lattice-like bodies include diamond-shaped wire meshes having a structure in which coils of steel wire material are combined with each other, three-dimensional net-like molded products made of synthetic resin, etc. can be used.

An example of manufacturing this block mat material will be described below.

Three-dimensional object layers are stacked on a base sheet, a formwork for a concrete block of a desired shape is placed on top of the three-dimensional object layer, and concrete is poured or blown into the inside of the formwork to form a concrete block.

At this time, the base sheet and the three-dimensional object layer may be fixed at a predetermined interval using a connector or the like. Furthermore, if necessary, a lattice-shaped partition frame or the like is arranged between the three-dimensional object layer and the base sheet to provide gaps between individual concrete blocks.

In addition, a three-dimensional object layer is placed on a flat plate, a formwork of a desired shape is placed on top of this, and concrete is poured to form a plurality of concrete blocks connected to each other by three-dimensional object layers. A concrete block is transferred onto a base material sheet and fixed with, for example, an adhesive to form a block mat material.

Alternatively, first lay a base sheet in the area where the block mat material is to be laid, layer the three-dimensional object layer on top of this, place the formwork as described above, and pour concrete to form a concrete block. , can also be constructed. If the surface to be laid is flat, it can be finished and raised with a trowel, but if it is on a steep slope, it should be sprayed with a concrete sprayer or
Measures such as forming the surface using a holding mold equipped with a vacuum device are taken.

[Action/Effect]

This block mat material has the above structure.

In this mat material, the concrete blocks are connected to each other on a three-dimensional object layer, so even if the adhesive part of each concrete block to the base sheet peels off, it will not fall off and there will be no defects in the block mat material. Does not occur. In addition, concrete can be cast on the base sheet and three-dimensional object layer laid at the construction site to form concrete blocks, and the block mat material can be constructed. In this case, the base sheet and concrete blocks are fixed by the concrete slurry that has penetrated into the base sheet, and since the concrete blocks are interconnected and integrated, they can be firmly integrated without using adhesives or the like. Ru.

Therefore, this block mat material can be used for a long period of time without producing any defects. It is also possible to pour concrete on-site and construct a strong block mat material that meets the site conditions.

[Brief explanation of the drawing]

FIGS. 1 and 2 are longitudinal cross-sectional views of the block mat material of the example. 1... Base sheet, 2... Lath wire mesh,
3... Concrete block, 4...
Lattice. 10 Figure 1 Figure 2 CC

Claims (1)

[Claims] (1) In a block mat material made by fixing a plurality of concrete blocks to the top surface of a base sheet, a lattice-like or mesh-like three-dimensional object layer is overlaid on the top surface of the base sheet, and this three-dimensional object layer is made of concrete. A block mat material that is embedded in blocks and is characterized in that the concrete blocks are connected to each other via a three-dimensional layer.