JPH0447246Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a slope drainage device.

[Conventional technology]

Conventionally, the slope drainage system shown in Figure 4 has been constructed to quickly guide rainfall and groundwater to the ground surface to prevent the ground from loosening, and to prevent slope collapse due to landslides, etc. Ta. The slope drainage device shown in the figure is equipped with a water passageway 1 constructed in a mesh pattern on a slope surface A, and water conduit pipes 2 driven into places where the water passageway 1 does not pass. Rainwater flowing down and groundwater drained from the water pipe 2 to the slope A are collected in the water channel 1, and then drained through the water channel 1 to a side ditch or the like (not shown) under the slope A. ing. In addition, lawns and other plants are generally planted in areas of the slope A where the water passage 1 does not pass.

In such a conventional slope drainage device, the water passage 1 is formed by, for example, connecting groove-shaped water passage members 11 in a mesh pattern with joints 12, and the joints 12 are shown in FIGS. 5 and 6. It is fixed to the slope A by a fastener 3 such as a stake driven into the slope A to prevent positional displacement. The water pipe 2 is driven almost horizontally into the slope A as shown in FIG. 6, and its open end 21 is projected onto the slope A.

[Problem that the invention attempts to solve]

However, in the conventional slope drainage device described above, the water W discharged from the water pipe 2 falls onto the slope A, so even when plants are planted, the slope A Point G may be gradually dug down, and in severe cases, the digging progresses to an extreme level, causing the ground on slope A in the surrounding area to loosen, causing slope A to collapse over a wide area, or for water to pass through. There was a risk that the ground below the member 11 and the joint 12 would be scoured.

In addition, in conventional slope drainage devices, fasteners such as piles 3
It is necessary to separately perform the work of driving the water pipe into the slope A to stop the joint 12 and the work of driving the water conduit 2 into the slope A, and these operations need to be performed at many locations on the wide slope A. Not only does the work require an extremely large amount of time and labor, but also the required number of stops 3 and water pipes 2 increases, resulting in high costs, which is a factor that increases the construction cost as a whole. Another problem was that the piles stood out and were unsightly after construction.

This invention solves these problems. By using the stopper in the water conduit pipe, there is no need for a stopper, and there is no risk of the slope surface being dug up by the water discharged from the water pipe. The purpose is to provide equipment.

[Means for solving problems]

The measures taken to achieve the above objectives include a water conduit pipe whose pipe wall is permeable, and a joint having a branch part and a flat part provided all around the outside of the base of the branch part. , and a water passage member connected to the joint, and the tip of the water conduit is driven into the slope almost horizontally with a water flow gradient, and the tip is inserted into the flat part of the joint. The joint is fixed on the slope, and the open end of the water pipe faces the internal passage of the joint from above, and at the connection point between the joint and the water passage member, the end of the water passage member and the joint The branch part of

[Effect]

According to the slope drainage device configured in this way,
Rainwater flowing down the slope is collected by water-flowing members and joints, and then drained into gutters, etc. below the slope. In addition, the groundwater discharged from the water pipe does not fall onto the slope, but is directly discharged into the internal passage of the joint, and then is discharged into a gutter or the like below the slope. Further, the conventional stop for fixing the joint on the slope is also used by the water conduit, so the stop is no longer necessary.

〔Example〕

1 and 2 show the main parts of a slope drainage device according to an embodiment of the present invention. In these figures, 4 is a joint, and water passage members 51 to 54 are connected to the four branch parts 41 to 44, respectively. The water passing members 51 to 54 are laid on the slope A, and the branch parts 41 to 44 of the joint 4 and the ends of the water passing members 51 to 54 are connected in an overlapping state. That is, on the upstream side of the water flow, the branch portion 41,
The ends of the water passing members 51 and 54 are overlapped on the water flow member 44, and the branch parts 42 and 4 are placed on the downstream side of the water flow.
The ends of the water passing members 52 and 53 are overlapped under the water passage member 3. The water passage members 51 to 54 are connected in a mesh pattern by the joint 4 to form a rhombic mesh water passage shown in FIG. 4, for example. The joint 4 is integrally provided with a flat portion 45. The tip of a water conduit 6 driven almost horizontally into the slope A is inserted through the flat part 45, and the water conduit 6 fixes the joint 4 on the slope A to prevent it from shifting. ing. The illustrated water pipe 6 uses a synthetic resin molded product made of a fiber aggregate 61 that has water permeability in the upper half of the pipe wall and has a very small gap, and the part that protrudes from the slope A is used. is composed of a resin pipe 62 that does not have water permeability. and,
The open end 63 of the water conduit 6 is connected to the internal passage 4 of the joint 4.
6 is facing from above. Note that the water conduit 6 is provided with a water flow gradient.

According to such a slope drainage device, rainwater flowing down the slope A flows through the joint 4 and the water passage parts 51 to 54.
It is collected in a diamond-shaped mesh-like passageway formed by the water, and is discharged to a side gutter (not shown). In addition, groundwater enters the inside of the water pipe 6 through the gap between the fiber aggregates 61 provided in the water pipe 6, and is then discharged from the open end 63 and into the internal passage 46 of the joint 4. It is discharged through waterways to the above-mentioned side ditches, etc. When rainwater flows down the water passage, water leakage does not occur at the overlapping connection points between the branch parts 41 to 44 of the joint 4 and the ends of the water flow members 51 to 54. Therefore, the situation where the slope below the connection point is scoured will not occur.

FIG. 3 schematically shows an embodiment of a slope drainage device that shakes a tortoise-shell water passage. The joint 4 shown in the figure has a third branch, and the water passage is formed by connecting the water passage member 5 to these branches. The joint 4 is stopped on the slope A by the water conduit 6 driven into the slope A,
The points that the pipe wall of the water conduit 6 has water permeability and that the open end of the water conduit 6 faces the internal passage of the joint 4 from above are different from the embodiment described in FIGS. 1 and 2. The same is true. Also with the slope drainage system of this embodiment, the groundwater discharged from the water pipe 6 is drained to the joint 4.
After entering the internal passage, it is discharged to a side gutter or the like through the water passage.

[Effect of idea]

According to the present invention, groundwater drained from the water pipe is directly discharged into the internal passage of the joint, so the slope surface is not dug up by the water discharged from the water pipe, as is the case with conventional methods. This will prevent the situation from progressing and causing the slope to collapse. In addition, since the joint is fixed to the slope by a water conduit driven into the slope, there is no longer a need for a stopper, which was required in the past, and the time and effort required to drive the stopper into the slope. Construction costs are lower, economical efficiency is improved, and at the same time, the appearance is improved because stops are removed from the slope. In addition, since the branch part of the joint and the end of the water-conducting member are connected in an overlapping state, there is a situation where water leaks from the connection point and scours the slope below the connection point. can't happen.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the main parts of a slope drainage device according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the line X-X in Fig. 1, and Fig. 3 is a slope surface according to another embodiment. Figure 4 is a partial front view of a conventional slope drainage system, Figure 5 is an enlarged view of the Z section in Figure 4, and Figure 6 shows the main parts of a conventional slope drainage system. FIG. A...Slope, 4...Joint, 46...Inner passage of the joint, 5, 51-54...Water passage member, 6...Water pipe, 63...Open end.

Claims (1)

[Scope of utility model registration request] A water conduit pipe having a permeable pipe wall, a joint having a branch part and a flat part integrally provided on the outside of the base of the branch part, and a water passage member connected to the joint, The tip of the water conduit, which is driven almost horizontally into the slope with a flow gradient of The open end of the water pipe faces the internal passage of the joint from above,
A slope drainage device characterized in that, at a connection point between the joint and the water passing member, an end portion of the water passing member and a branching portion of the joint are overlapped.