JPS6328182B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a slope water prevention device.

Conventionally, a vegetation belt or the like is sometimes provided on the slope to protect the slope, but if it rains before the plants have sufficiently grown, the slope will be eroded by the flow of rainwater. This erosion effect becomes more pronounced as the slope becomes longer, and the amount and speed of water flow increases. Therefore, various measures are being taken to prevent erosion of slopes by running water.

For example, obstacles are placed in contour lines on slopes to buffer the flow of water.

However, these obstacles are generally heavy objects, and carrying a large number of them onto a slope requires hard labor, and the construction work to install them is troublesome. Furthermore, it cannot be said that these obstacles are sufficiently established on the uneven slope surface. Furthermore, although these obstacles can reduce the force of running water, they have the disadvantage that unless a drainage channel is installed, the running water will eventually flow down the slope, causing erosion.

The present invention was made by focusing on the existence of highly water-absorbing substances disclosed in Japanese Patent Publication No. 53-46200, Japanese Patent Publication No. 56-8610, etc. as a result of various studies in order to eliminate the above-mentioned conventional drawbacks. A plurality of water-permeable bags containing a highly water-absorbing substance are attached in parallel at predetermined intervals using connecting means, and the bags are arranged in a contour line on a slope, and with the highly water-absorbing substance, It is an object of the present invention to provide a water-flow prevention device for slopes that absorbs a large amount of water and expands to perform the same function as conventional obstacles, while eliminating the drawbacks of the conventional methods, such as being lightweight and easy to install before use. That is.

Next, the present invention will be explained with reference to drawings which are embodiments.

As shown in FIG. 1, the slope water prevention device 1 according to the present invention is made of water-permeable fabric, for example,
A long bag body 2 made of cloth, non-woven fabric or the like has a super absorbent substance 3 built therein, and a large number of bags are connected in parallel at predetermined intervals by connecting means 4. As the superabsorbent material 3, in addition to the material disclosed in the above-mentioned publication, various materials such as Igetagel and Sumikagel (all registered trademarks) can be used.

In addition, a fixed amount of the super absorbent material 3 is built into the bag body 2, but in order to prevent the super absorbent material 3 from being concentrated, the super absorbent material 3 is placed in the fibers 5, etc.
It can be built-in with attached
As shown in the figure, a super absorbent material 3 is attached to the inner surface of the bag body 2.
It is preferable to glue it or to incorporate it in a sandwich-like shape with paper 9 or the like. Furthermore, the fabric forming the bag body 2 must have water permeability and must not allow the superabsorbent substance 3 to spill out.

On the other hand, as the connecting means 4, a string, a rope 6, a net 7, a vegetation board, etc. are used.

For example, a bag body 2 in which the long super absorbent substance 3 is built into a plurality of strings or ropes 6,
The mesh body 7 may be fixed in parallel at predetermined intervals using appropriate means.
It is fixed as above. If it is of this format,
The bags 2 may be simply arranged in contour lines on the slope G by an appropriate method, or seeds or the like may be sprayed onto the slope G after the bags 2 have been placed so as to green the slope G. Note that a known vegetation belt may be attached to the net body 7.

When the super absorbent material 3 absorbs water (for example, it absorbs water several hundred times its own weight), the bag body 2 of the water flow prevention device 1 configured as described above expands and becomes large in weight and bulk, but it is small before absorbing water. .

Therefore, by winding the water flow prevention device 1, it can be easily transported. Moreover, it can be laid on a slope very easily by unrolling and unrolling it from above the slope.

In addition, after laying, it is preferable to fix the bag body 2 with a skewer 8 or the like. In addition, the bag body 2 can hold not only water, but also water.
Needless to say, this prevents the flow of earth and sand.

The highly water-absorbent substance 3 has not only water-absorbing properties but also water-discharging properties, and therefore has the effect of improving the germination and growth of plants near the bag body 2.

As is clear from the above explanation, in the present invention, we focus on the property of super absorbent substances that not only have high water absorbency but also expand when water is absorbed, and connect bags containing this super absorbent substance. A plurality of water-flow prevention devices are attached to the device in parallel at predetermined intervals. Therefore, the superabsorbent material weakens the flowing water by absorbing water, and once it absorbs water and expands, it performs the same function as conventional obstacles. In addition, since superabsorbent materials become fluid (elastic) when they absorb water, they adhere closely to slopes, eliminating any problems caused by unevenness between obstacles and slopes, which is the case with conventional methods. is easy.

In addition, superabsorbent substances are light before absorbing water, so they are light overall, and only a small amount is needed.
The running water prevention device has a small bulk as a whole before absorbing water, making it easy to transport above the slope, and by unwinding and unfolding it from above the slope in a rolled state, it can be easily and accurately carried. It has the effect of being extremely easy to install on slopes.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the state in which the water flow prevention device according to the present invention is installed on a slope, Fig. 2 is an enlarged view of the state in Fig. 1 before water absorption, and Figs. 3 and 4 are the same as Fig. 1. 5 to 7 are explanatory cross-sectional views of the bag showing the state in which the superabsorbent material is attached to the bag. 1 - water flow prevention device, 2 - bag body, 3 - super absorbent material, 4, 6, 7 - connection means, G - slope.

Claims (1)

[Scope of Claims] 1. A plurality of water-permeable bags each having at least a highly water-absorbing substance inside and having a sufficient size to secure an expansion volume after the super-absorbing substance absorbs water are connected by a connecting means. A slope water prevention device that is installed parallel to each other at predetermined intervals. 2. The slope water prevention device according to claim 1, wherein the connecting means is a string. 3. The slope water prevention device according to claim 1, wherein the connecting means is a net. 4. Claim 1, wherein the connecting means is a net body with a vegetation plate provided thereon.
Equipment to prevent running water on slopes as described in section. 5. The slope water prevention device according to claim 1, wherein the connecting means is a vegetation board.