JP6209704B1 - Disaster prevention block mat - Google Patents

Abstract

An object of the present invention is to provide a disaster prevention block mat having a disaster prevention function, a herbicidal function, and a landscape. A disaster prevention block mat according to the present invention includes a plurality of disaster prevention blocks arranged in the same direction on one surface of a filter sheet, vertically and horizontally, and the disaster prevention blocks are formed from a front side and a rear side of a rectangular bottom surface. Two introduction walls erected upward, two side walls erected upward from both sides of the bottom surface of the rectangle and connecting the sides of the two introduction walls, and close to each other from the upper sides of the two introduction walls A base having two shoulder surfaces extending in a direction, two grip walls standing upward from the upper sides of the two shoulder surfaces, and an upper surface connecting the upper sides of the two grip walls A gripping convex part for gripping with fingers and a gripping concave part recessed from the widthwise central part of the two introduction walls to the shoulder surface, and having a penetrating layer between the bottom surface of the base and the gripping concave part , By the holding recesses of the two disaster prevention blocks that are continuous in the front-rear direction Wherein the gripping space for applying a finger is formed. [Selection] Figure 1

Description

  The present invention relates to a block mat, and more particularly, to a disaster prevention block mat having a disaster prevention function, a herbicidal function, and a landscape.

The block mat is formed by continuously arranging a concrete block on one surface of a resin nonwoven fabric sheet, and laying on a slope such as a coast, a river, a pond, etc. can achieve revetment and stabilization of the slope. Patent Documents 1 and 2 disclose conventional techniques related to block mats.
In recent years, the risk of drowning accidents due to falling into a pond has increased with the urbanization and mixed living around the pond. In response to this, the Ministry of Agriculture, Forestry and Fisheries is seeking a revetment that can easily climb when a person falls by mistake as a safety measure for a pond (Non-patent Document 1).
A similar accident has occurred on the coast and rivers, and there is a need for a block mat with a disaster prevention function that helps the rider to climb up on his own.

JP 2010-265667 A JP 2011-26947 A

“Reservoir Case Examples of Reservoir (Ministry of Agriculture, Forestry and Fisheries, Rural Promotion Bureau Disaster Prevention Section: May 2013)” http://www.maff.go.jp/j/nousin/bousai/bousai_saigai/b_tameike/pdf/tameike_manual_2_part2_2. pdf

The prior art has the following problems.
<1> The shape of the block is complex, and there is no part where the sliding person can stably hang his fingers.
<2> Since there is a gap for anchor placement between successive blocks, grass tends to grow over the sheet material. For this reason, there is a risk of falling due to lack of visibility, and the burden of maintenance costs such as mowing is large.

The disaster prevention block mat of the present invention that solves the above problems is formed by continuously attaching a plurality of disaster prevention blocks arranged in the same direction on one side of a filter sheet in the vertical and horizontal directions, and the disaster prevention block includes a front side and a rear side of a rectangular bottom surface. Two introduction walls standing upward from the side, two side walls standing upward from both sides of the rectangular bottom surface and connecting the side edges of the two introduction walls, and the upper side of the two introduction walls A base having two shoulder surfaces extending in the approaching direction, two gripping walls erected upward from the upper sides of the two shoulder surfaces, and an upper surface connecting the upper sides of the two gripping walls; A gripping convex part for gripping with fingers, and a gripping concave part recessed from the center in the width direction of the two introduction walls to the shoulder surface, and an intrusion layer between the bottom surface of the base and the gripping concave part Holding recesses for two disaster prevention blocks that are continuous in the front-rear direction Accordingly, characterized in that the gripping space for applying a finger is formed.
Each disaster prevention block has a shape that can be climbed in the length direction.

  In the disaster prevention block mat of the present invention, the penetration layer may have a thickness of 1 mm or more and 25 mm or less.

  In the disaster prevention block mat of the present invention, an introduction groove may be formed between the introduction walls of two disaster prevention blocks whose introduction wall is inclined toward the shoulder surface and is continuous in the front-rear direction.

The disaster prevention block mat of the present invention has at least one of the following effects from the above configuration.
<1> A combination of a deep gripping space and a wide flat wall surface makes it easy for a slipper to put power on the fingers. For this reason, it is easy for a slipper to crawl up, and a drowning accident can be effectively prevented.
<2> Since the bottom surface of the disaster prevention block has a perfect rectangle and does not create a gap between adjacent disaster prevention blocks, the overgrowth of grass can be prevented. For this reason, it is possible to prevent a fall due to insufficient visibility. Also, the maintenance burden is small.
<3> The anchor pin can be easily placed and the anchor pin is hidden in the introduction groove after placement, so that the landscape is excellent.

Explanatory drawing of the disaster prevention block mat which concerns on this invention. Explanatory drawing of a disaster prevention block. Explanatory drawing of a holding space. Explanatory drawing of an introduction groove. Explanatory drawing of an introduction groove.

  Hereinafter, the disaster prevention block mat of the present invention will be described in detail with reference to the drawings. In this specification, etc., the front, back, left, right, top, bottom, etc. are oriented in the front-rear direction so that the disaster prevention block mat is flat. Each direction in the state attached to is represented.

[Disaster prevention block mat]
<1> Overall configuration (FIG. 1).
The disaster prevention block mat A of the present invention is formed by continuously attaching a plurality of disaster prevention blocks 1 arranged in the same direction vertically and horizontally on one surface of the filter sheet 2.
Here, “continuously” includes not only the case where the adjacent disaster prevention blocks 1 are brought into close contact with each other but also the case where there is a slight gap between the disaster prevention blocks 1.
Each disaster prevention block 1 is integrally fixed to the surface of the filter sheet 2 at the bottom.
In the disaster prevention block mat A of the present invention, since each disaster prevention block 1 has an uneven shape, it is easy to put fingers and feet on it, and can assist the climber in the direction of the law.

<2> Disaster prevention block (FIG. 2).
The disaster prevention block 1 is a concrete block body that covers the surface of the filter sheet 2.
The shape of the disaster prevention block 1 is a rectangular shape in plan view, a trapezoidal shape with the upper side as a short side in front view, and a substantially convex shape in side view.
In this example, the size is such that the sliding person can easily put his / her fingers, but the plan view is a square having a side of about 200 mm, but is not limited thereto.
The disaster prevention block 1 includes a base 10, a gripping convex portion 20, and a gripping concave portion 30. The gripping convex portion 20 projects upward from the center of the base portion 10 in the front-rear direction, and the gripping concave portions are provided in front and rear of the base portion 10.

<2.1> Base.
The base portion 10 includes two introduction walls 11 on the front and rear surfaces, two side walls 13 on the left and right surfaces, a rectangular bottom surface 14, and two shoulder surfaces extending from the top side of the introduction wall 11 toward each other. 12. It is desirable that the introduction wall 11 is slightly inclined toward the shoulder surface 12 and a gentle R shape is formed between the introduction wall 11 and the shoulder surface 12.
A gripping recess 30 is formed in the center of the introduction wall 11 in the width direction, and the penetration layer 15 is secured between the bottom portion and the bottom surface 14 of the gripping recess 30.
The upper side of the shoulder surface 12 is connected to the lower portion of the gripping convex portion 20, and the side wall 13 extends to the side surface of the gripping convex portion 20.
The four corners of the bottom surface 14 have a right-angled shape without performing R processing for anchor pin placement as in the prior art.

<2.1.1> Penetration layer.
The penetration layer 15 is a thin layer for penetrating the anchor pin D for fixing the disaster prevention block mat A.
The thickness of the penetration layer 15 is set to such a thickness that the anchor pin D can be easily penetrated and can withstand damage due to external stress. It is desirable that the distance is approximately 1 mm to 25 mm. In this example, the penetration layer 15 has a tapered shape in which the thickness decreases toward the opening side.
In the prior art, the block has a gap for anchor pin placement. For this reason, even if the blocks were continuously laid, the grass grew from the gaps between the blocks.
On the other hand, as for the disaster prevention block mat A of this application, the disaster prevention block 1 is equipped with the penetration type penetration layer 15, and does not have the clearance gap for anchor pin D placement. For this reason, since the disaster prevention block 1 can coat | cover the whole surface of the filter sheet 2, the overgrowth of grass can be prevented.
In addition, even when there is a slight gap between the adjacent disaster prevention blocks 1, since a concrete layer adheres to the gap to form a thin layer, the same herbicidal effect as that in the case of close contact can be exhibited.

<2.2> Grasping convex part.
The grip convex part 20 is a protrusion part for a slipper to grip.
The gripping convex part 20 includes two gripping walls 21 on the front and rear surfaces and an upper surface 22 on the top surface. It is desirable that the grip wall 21 and the upper surface 22 have a gentle R shape.
The side surface of the gripping convex portion 20 is continuous with the side wall 13.
It is desirable that the holding wall 21 has a height of about 20 to 30 mm so that the finger of the slipper can be easily applied.
It is desirable that the upper surface 22 has a flat shape so that the palm of the slipper is in close contact.

<2.3> Holding recess.
The grip recess 30 is a recess for a slipper to grip.
The holding recesses 30 are formed from the center in the width direction of the introduction wall 11 to the shoulder surface 12 on both front and rear sides of the base 10.
The grip recess 30 can have a width of about 50 to 100 mm and a depth of about 10 to 50 mm so that the finger of the slipper can be easily applied.
However, the present invention is not limited to this. For example, the width may be increased to a maximum of 190 mm and the depth may be increased to a maximum of about 95 mm as long as the finger is applied.

<3> Filter sheet.
The filter sheet 2 is a sheet material provided with a sloped surface suction prevention function.
In this example, a polyester non-woven filter sheet is employed. However, the material is not limited to this, and may be a chemical fiber such as polyester or polyethylene. Moreover, not a nonwoven fabric but a woven fabric, a knitted fabric, etc. may be sufficient.

<4> Grasping space (FIG. 3).
A gripping space B for a slipper to put his / her fingers between the disaster prevention blocks 1 is formed by the two gripping recesses 30 continuous in the front-rear direction.
When the slipper is gripped by the disaster prevention block 1, the finger of the slipper enters the gripping space B and is hooked on the inner wall of the gripping recess 30.
The finger that has slipped out of the gripping space B also hangs on the gripping wall 21 of the wide gripping convex portion 20.
At the same time, the palm is brought into close contact with the upper surface 22 of the flat gripping convex portion 20 to prevent slipping.
Also, the shoetip of the slipper can be hung on the gripping space B or the gripping wall 21.
By combining the above functions, it is possible to assist the rider to crawl on the water, and to increase the possibility that the life of the person who has fallen into the water will be saved.

<5> Introduction groove (FIGS. 4 and 5).
An introduction groove C having a V-shaped cross section is formed between the introduction walls 11 of the two disaster prevention blocks 1 that are continuous in the front-rear direction.
The disaster prevention block mat A of the present invention is fixed to the slope by punching out the penetration layer 15 and the filter sheet 2 of the adjacent disaster prevention block 1 with a U-shaped anchor pin D (FIG. 4 ( a)).
When the anchor pin D is driven, since the longitudinal portion of the anchor pin D is guided into the introduction groove C, the tip end portion of the pin can be positioned at a predetermined position. Therefore, the work efficiency of the fixing work is good (FIG. 5).
Moreover, since the anchor pin D after placement is accommodated in the introduction groove C and is not conspicuous, it is excellent in scenery (FIG. 4B).

A Disaster prevention block mat 1 Disaster prevention block 10 Base 11 Introduction wall 12 Shoulder surface 13 Side wall 14 Bottom surface 15 Penetration layer 20 Grasping convex part 21 Grasping wall 22 Upper surface 30 Grasping concave part 2 Filter sheet B Gripping space C Introducing groove D Anchor pin

Claims (3)

A disaster prevention block mat comprising a plurality of disaster prevention blocks arranged in the same direction on one side of the filter sheet, continuously and vertically.
The disaster prevention block
Two introduction walls standing upward from the front and rear sides of the rectangular bottom surface, two side walls standing upward from both sides of the rectangular bottom surface and connecting the side edges of the two introduction walls; A base having two shoulder surfaces extending from the upper sides of the two introduction walls toward each other;
A gripping convex part for gripping with fingers, having two gripping walls erected upward from the upper side of the two shoulder surfaces, and an upper surface connecting the upper sides of the two gripping walls;
A holding recess that is recessed from the widthwise center of the two introduction walls to the shoulder surface,
Having a penetrating layer between the bottom of the base and the gripping recess,
A grasping space for placing fingers is formed by the grasping recesses of the two disaster prevention blocks continuous in the front-rear direction,
Disaster prevention block mat.   The disaster prevention block mat according to claim 1, wherein the penetration layer has a thickness of 1 mm or more and 25 mm or less.   The introduction wall is inclined to the shoulder surface side, and an introduction groove is formed between the introduction walls of the two disaster prevention blocks that are continuous in the front-rear direction. Disaster prevention block mat.

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