JP2002129535A - Water permeable channel member having purifying effect - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water channel member capable of maintaining an adequate moist condition for the surrounding ground and of purifying water flowing inside the channel. SOLUTION: Waterstops (4) separating the upstream side from the downstream side are formed as one united body at the inner bottom portion of a water permeable channel member (3) forming a pipe shape or U-shaped channel connected together in longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterway member constituting a drainage channel useful for improving the natural environment.

[0002]

2. Description of the Related Art The wet state of the ground is adjusted by laying a drainage channel on the ground or in the ground.

[0003] A waterway member constituting a conventional drainage waterway is as follows.
It is a U-groove or tube-shaped block made of non-permeable concrete, and neither water in the water channel permeated into the ground nor water from the ground penetrated into the water channel. Rain flows directly into the reservoir and is drained from the canal.If the rainfall is large, the ground becomes wetland with excess water, and if the rainfall is low and the reservoir is dried up, the land becomes too dry and As a result, the natural environment has been degraded.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and the problem is that when the surrounding ground contains extra water, the water is absorbed inside. It is an object of the present invention to provide a water channel that is flushed into a water channel and discharges internal water when the ground is too dry to maintain the ground in a moderately wet state.

[0005]

In order to achieve the above-mentioned object, a means adopted by the present invention is to make a concrete molded product as a U-shaped or tube-shaped waterway member constituting a waterway permeable, and to form a water-permeable material on the inner bottom surface thereof. Is provided with a water stop plate for retaining and purifying water. It is preferable that the concrete molded product having water permeability is made of air-permeable and water-permeable concrete, but it is also possible to use general non-water-permeable concrete. In the case of non-permeable concrete, a large number of holes are provided on the wall surface to make it water-permeable, and the inside and outside of each hole are partitioned by an internal metal net, a synthetic resin net, a cloth or the like. The water stop plate can be provided at the outlet of each water channel member, and in this case, a water receiver for staying may be provided at the inlet.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described based on an embodiment shown in the drawings.

FIGS. 1 and 2 are an end view and a longitudinal sectional view, respectively, of a tubular channel member 1 of a first embodiment.
It is a cylindrical pipe-shaped molded product made of permeable concrete, and a water blocking plate 2 is integrally formed on the inner bottom. The water stop plate 2 is semicircular when viewed from the end face.

[0008] In a channel for a channel constructed on the ground,
The tubular waterway members 1 are sequentially connected in the longitudinal direction to form a waterway. The waterway descends from upstream to downstream. When the ground holds extra water, the extra water is
Permeates into the interior from the pipe wall and flows through the water channel from the upstream side to the downstream side as indicated by the arrow. The water stays on the upstream side of the water stop plate 2 inside each water channel member 1 and then falls like a waterfall over the water stop plate 2 to the downstream side. At this time, the water is purified by aeration. When the ground is dry, the water stop plate 2 in each channel member 1
The water remaining on the upstream side of the pit penetrates into the ground from the pipe wall and gives moisture to the ground, thereby preventing desertification.

[0009]

Next, a channel type waterway member according to a second embodiment will be described.

FIGS. 3 and 4 are an end view and a longitudinal sectional view of the channel-shaped channel member 3. FIG. The channel-shaped channel member 3 is a gutter-shaped molded product made of water-permeable concrete having a U-shaped cross section, and a water-blocking plate 4 is integrally formed on an inner bottom portion. The water stop plate 4
It is a weir which partitions the inner bottom part of the channel-shaped channel member 3 into the upstream side and the downstream side, and the upper part projects to the downstream side to form the eaves 5.

A large number of groove-shaped waterway members 3 are sequentially connected in the longitudinal direction in a waterway groove constructed on the ground so that an upstream side is higher than a downstream side. The water flowing in the direction indicated by the arrow inside each grooved waterway member 3 stays on the upstream side of the water stoppage plate 4 and then falls downstream over the eaves 5 of the water stoppage plate 4. At this time, the air below the eaves 5 is caught in the water, the oxygen content of the water increases, and the water is purified. The upper surface of the water channel is open, and not only sediment remains on the upstream side of the water stoppage plate 4, but also algae are generated and attached, and water is also subjected to a purification action by vegetation. Excess water in the ground due to a large amount of rain penetrates into the interior from the water-permeable wall surface of each waterway member 3, and when the ground dries due to long-term sunshine, residual water in each waterway member 3 permeates from the water-permeable wall surface to the ground. Therefore, the wettability of the ground is appropriately maintained.

FIG. 5 shows a grooved waterway member 6 according to a third embodiment.
Is a general molded product made of water-impermeable concrete, but has many through holes 7 formed in the wall surface. Each through-hole 7 is partitioned inside and outside by an embedded synthetic resin net 8. Excess water in the ground penetrates into the waterway member 6 through the through hole 7, and when the ground dries, residual water inside the waterway member 6 permeates into the ground. Other configurations and effects are the same as those of the second embodiment.

Each channel-shaped channel member 9 of the fourth embodiment shown in FIG.
Has a water stop plate 10 at the outlet and a water receiving portion 11 at the inlet, and water stays in the water receiver 11 downstream of the water stop plate 10. Since the water receiving portion 11 is low, the water receiving portion 11 is suitable for maintaining the wettability of the ground having a small amount of water and the ground having a gradient. Other configurations and effects are the same as those of the second embodiment.

[0014]

As described above, in the waterway member of the present invention, the pipe wall is water-permeable and the inside has a water-blocking plate for purifying action. Unlike conventional waterway members that did not have anything, the extra water held by the ground through which the waterway passes is taken inside, and the insufficient water is supplied from the inside to maintain the soil's wettability moderately and the surrounding natural environment Has an excellent effect of being able to preserve

[Brief description of the drawings]

FIG. 1 is an end view of a waterway member according to a first embodiment of the present invention;

FIG. 2 is a vertical longitudinal sectional view of the first embodiment,

FIG. 3 is a view corresponding to FIG. 1 of the second embodiment,

FIG. 4 is a view corresponding to FIG. 2 of the second embodiment,

FIG. 5 is a view corresponding to FIG. 2 of the third embodiment,

FIG. 6 is a view corresponding to FIG. 2 of the fourth embodiment,

[Explanation of symbols]

 1, 3, 6, 9: water channel member 2, 4, 10: water blocking plate 5: eaves 7: through hole 8: net 11: water receiving portion

Claims (4)

[Claims] A water-blocking plate (2, 4) is integrally provided on the inner bottom of a water-permeable channel member (1, 3, 6, 9) connected longitudinally to form a tubular or U-shaped channel. A water-permeable waterway member having a purifying action. 2. The water-permeable waterway member having a purifying action according to claim 1, wherein an eave (5) extending downstream is integrally provided on the water-stop plate (4). 3. The water-permeable waterway member having a purifying action according to claim 1, wherein the water-permeable waterway member (1, 3) is a molded product of water-permeable concrete. 4. A water-permeable waterway member (6) is a non-permeable concrete molded product having a through-hole (7) in a wall surface, and the through-hole is partitioned into and out of an inside through a mesh (8) provided therein. The water-permeable waterway member having a purifying action according to claim 1 or 2, wherein the water-permeable waterway member has a purifying action.