JPH0439298Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] The invention relates to slope reinforcement facilities, and more specifically, it is a slope reinforcement facility that effectively drains water from water-containing ground and prevents slope collapse and collapse. It is related to facilities.

[Prior art]

Roads in mountainous areas often have steep slopes approaching the roadside. The slopes of such slopes are reinforced with netting, etc.
Care has been taken to prevent the topsoil from collapsing and stones and small rocks from falling. However, if the ground becomes loose due to its high water content, the mesh is not sufficient to prevent the slope from collapsing or collapsing. However, since the water seeping out from the surface of the ground flows along the slope of the slope, it can be led to roadside ditches.

On the other hand, if measures are taken to prevent slope collapse by covering almost the entire surface of the slope with concrete, water content will be blocked by the concrete and it will be difficult to drain it. When the ground begins to loosen due to water content, the effectiveness of slope reinforcement with concrete decreases, and in some cases, the concrete may collapse. To prevent this from occurring, drain pipes are often used to drain water and maintain the slope reinforcement effect of concrete. The drainage pipe is generally made of plastic, and is inserted into the ground at a slight angle from the surface, directing water to the reinforced slope surface and allowing it to drain along the concrete surface. . The drainage pipe is, for example, about 1 meter long and has several holes around it, and water from the ground enters the pipe through the holes, so the water collected in the pipe is It can be easily guided to the concrete surface.

[Problem that the invention attempts to solve]

By the way, since the drain pipe is inserted into a pre-bored hole, the inside of the pipe is hollow. However, if the holes through which water enters are large, some dirt and stones will enter the pipe and accumulate, impairing the flow within the pipe. On the other hand, if the holes are too small, dirt and stones may get stuck in them, preventing moisture from entering the pipe. One of the reasons for this is that regardless of the thickness of the pipe, the diameter of the hole is constant toward the inside of the pipe, so it is not easy to provide multiple holes from the viewpoint of strength and manufacturing. It is from. That is, while making it difficult for dirt and stones to get caught in the hole, it is not easy to ensure that water can enter the hole at all times, and consideration for this has conventionally been lacking.

By the way, in the case of the above-mentioned concrete covering, it is easy to fix the drain pipe protruding from the surface with concrete, but when concrete is not used, the drain pipe gradually moves, making it difficult to secure it stably. Not planned. When installed together with the above-mentioned net, there are problems such as the use of drainage pipes becoming impossible unless measures are taken to prevent this.

The present invention was developed in view of the above-mentioned problems, and its purpose is to ensure that the drain pipe itself performs its function smoothly and over a long period of time, and that the drain pipe is securely fixed. The purpose of providing slope reinforcement facilities is to realize even stronger reinforcement of slopes by extending them.

[Means for solving problems]

The present invention is applied to a slope reinforcement facility consisting of a drainage pipe 3 inserted almost horizontally into the ground 2 on a slope 1 and a net 4 stretched to cover the slope 1. The features will be briefly described based on FIG. 1 and referring to the reference numerals. The drain pipe 3 has a wire-wound structure with a substantially inverted triangular cross section (see FIG. 3), and is installed with its tip protruding from the slope 1. The ground 2 of the drainage pipe 3
The protruding part from the rope 1 is stretched on the slope 1.
0 and the ropes 10 are attached to the net 4 by means of coupling means 16 (see FIG. 4).

[Effect]

The net 4 stretched over the slope 1 prevents the sloped ground surface from collapsing or collapsing. On the other hand, the drain pipe 3 allows water contained in the ground 2 to enter therein, guides it to the surface of the ground, and drains it. Drain pipe 3
is a winding structure of a wire with an approximately inverted triangular cross section,
The gap 8 (see Figure 3) that introduces moisture is made small to prevent dirt and stones from entering and clogging the gap. Since the gap 8 is shaped to open inward of the pipe, only water-containing water enters and the accumulation of dirt and stones inside the pipe is also avoided. The tips of the drain pipes 3 protrude from the slope, and the protruding parts are tied together with the rope 10 stretched over the slope 1, so the mutual positions of the drain pipes are restrained, and the drain pipes 3
A stable arrangement state is maintained. the rope 1
0 is attached to the net 4 by a coupling means 16 such as a coil, and the net 4, rope 10 and drain pipe 3 are integrated.

[Effect of idea]

The present invention is based on a combination of a mesh body and a drainage pipe, and the drainage pipe has a wire-wound structure with an approximately inverted triangular cross section, which prevents dirt and stones from entering, clogging, and accumulating inside the pipe. This allows only moisture to enter and drain smoothly. Although the removal of water content by the mesh body alone is insufficient, the reinforcing effect of the mesh body is enhanced by draining water content using the special pipe having the above-mentioned structure. The drain pipe and the net are further integrated by a connecting means via a rope, which makes it extremely unlikely that the installation condition of the drain pipe will change, and ensures that all elements in the reinforcement facility are securely fixed to each other. becomes. Therefore, by preventing the slope from collapsing and smoothly discharging water, a practically excellent slope reinforcement effect can be achieved.

〔Example〕

The present invention will be described in detail below based on examples thereof.

Figure 1 is a cross-sectional view of a slope to which the slope reinforcement facility of the present invention is applied, and it has a fairly steep slope.
Moreover, it is a ground that contains a lot of water. A drainage pipe 3 is inserted into the ground 2 on the slope 1 almost horizontally, that is, at a slight downward slope with respect to the slope 1 to facilitate drainage, and a drain pipe 3 is stretched to cover the slope 1. It consists of a mesh body 4 provided. The mesh body 4 is made of steel wires 5 woven into a diamond shape as shown in FIG. 2, and anchors 6 are driven in at appropriate intervals at the top, bottom, left and right ends of the mesh (see FIG. 1).
It is fixed to the ground 2 by. As shown in FIG. 3, the drain pipe 3 described above has a structure in which a wire 7 having a substantially inverted triangular cross section is wound. Although the illustrated cross-sectional shape is trapezoidal, it may also be completely triangular.
It suffices if the gap 8 is formed so as to widen toward the inside of the pipe. The wire 7 is one continuous wire and is wound around a plurality of vertical steel wires 9 shown in FIG. The vertical steel wire 9 maintains the pipe shape formed by the wire 7, and the wire 7 is fixed thereto by welding or the like. Since the drain pipe 3 itself only needs to have the above-mentioned cross section and exhibit a predetermined function, it may be made of ring-shaped wires and arranged in a cylindrical cage shape on a vertical steel wire.

The tip of the drain pipe 3 is installed so as to protrude from the slope 1, as shown in FIG. Note that with the net 4 stretched on the slope 1 in advance, cut outs or the like at the locations where the drain pipe 3 is to be installed, and then cut the mesh to a depth of about 1 m, for example, with a diameter corresponding to the diameter of the drain pipe 3. A hole is drilled. When the drainage pipe 3 is inserted into the hole, the protruding parts from the earth 2 are secured to each other with a rope 10 stretched over the slope 1, as shown in FIG. The rope 10 is stretched over the net body 4 and is tied to anchors 11 at the top, bottom, left and right ends as necessary. Although the drain pipes 3 are shown as being arranged in an orderly manner, the mutual spacing, number, etc. are selected as appropriate depending on the condition of the ground. FIG. 5 shows how to secure the drain pipe 3 with the rope 10. For example, a left-right rope 10A is wrapped around the upper half of the drain pipe 3, and a short rope 10B is applied from below, and its ends are fastened at opposing positions with wire clips 12 as shown in FIG. 6, for example. . The wire clip 12 is composed of a U-bolt 12a, a flanged presser fitting 12b, and a nut 12c for pressing and fixing the flanges. The ropes 10C and 10D surround the drain pipe 3 in the same manner in the vertical direction, and the outer periphery of the drain pipe 3 is secured at all four locations. This type of lashing is performed by a relatively simple operation and provides sufficient lashing strength.

FIG. 7 shows a different lashing configuration, in which the longitudinal and lateral ropes 10A and 10C are lashed at the intersections. In an example using this cross clip 13, the flat plate 13a is fixed with a metal fitting having a U-bolt structure similar to the wire clip described above, and a band 14 for securing the circumference of the drain pipe 3 is hooked to one of the metal fittings. Figure 8 shows a U-shaped flat metal fitting 15a and a presser metal fitting 1.
5b and a clip 15 consisting of a bolt and nut. There are four ropes 10A (two in front of each rope shown)
The rope 10C descends from the slope 1, passes under the rope 10A, is clamped between the drain pipe 3 and the U-shaped flat metal fitting 15a, and is fixed with the bolt, and extends downward to the other end. It is installed to the water drain pipe 3.

The drain pipe 3 is fixed to the rope 10 in various forms as described above, and the rope 10 is fixed to the rope 10 by a coupling means 16 such as a coil as shown in FIG.
As shown in FIG. 4, it is attached by being wrapped around the net 4. The coil 16 has the advantage that it can be easily attached by an operator simply by rotating it, but it goes without saying that other known means can be used instead of such a connection. It should be noted that each rope 10 is also fixed to the ground 2 with an anchor 17 at its intermediate portion, if necessary.

In the slope reinforcement facility having such a configuration, the slope 1 is reinforced in the following manner.

First, the net 4 is stretched over the slope 1 and fixed with anchors 6. The mesh body 4 is cut out at or near locations where the ground 2 may contain water, and holes are drilled to a predetermined depth using a boring device. The drain pipe 3 is inserted to the extent that its tip partially protrudes. When several drainage pipes 3 are installed on the ground 2, ropes 10A and 10C are laid on the net 4. The rope 10 is used to secure the object as shown in FIG. 5, FIG. 7, or FIG. 8. Finally, the rope 10 is attached to the netting 4 by means of coupling means 16.

When slope reinforcement facilities are constructed in this way,
The net 4 stretched over the slope 1 prevents the sloped ground surface from collapsing or collapsing. It has been proven that the slope 1 is sufficiently reinforced by the net 4 as long as the ground 2 does not loosen. On the other hand, the drain pipe 3 allows water contained in the ground 2 to enter therein, guides it to the surface of the ground, and drains it. Drain pipe 3
is a winding structure of a wire with an approximately inverted triangular cross section,
The gaps that allow water to enter are made smaller to prevent dirt and stones from entering and clogging them. Only water-containing water enters through the gap 8, and the accumulation of dirt and stones in the drain pipe 3 is also avoided. The tip of the drain pipe 3 protrudes from the slope 1, and the protruding parts are tied together with the rope 10 stretched across the slope 1.
The mutual positions of the drain pipes 3 are restricted, and the drain pipes 3 are stably fixed. rope 10
is attached to the net 4 by a coupling means 16 such as a coil, so that the net 4, the rope 10 and the drain pipe 3 are integrated. A portion of the water contained in the drain pipe 3 remains within the pipe, but most of it is led out to the slope 1 through the slightly inclined pipe. The water-containing water flows on slope 1 and
It falls into a side ditch 19 of a road 18 shown in the figure.

In this way, the combination of the net and the drain pipe does not change the installation condition of the drain pipe, and all the elements in the reinforcement facility, namely the net 4, the drain pipe 3 and the rope 10, are mutually connected. The fixation is sure to be strong. Therefore, by preventing the slope 1 from collapsing and smoothly discharging water, a practically excellent slope reinforcement effect can be achieved.
The drain pipe 3 has a substantially inverted triangular wire wrapping structure in cross section, which prevents dirt and stones from entering, clogging, and accumulating in the pipe, and allows only moisture to enter and drain smoothly. Slope 1 with net only
Even if the reinforcement is insufficient, the reinforcing effect will be enhanced by draining water. Furthermore, drain pipe 3
and the net body 4 are integrated with a coil 16 or the like via a rope 10, so that there is very little chance of changes in the installation state of the drain pipe 3, and the mutual fixation of all elements in the reinforcement facility is reliable and strong. becomes.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the ground to which the slope reinforcement facility of the present invention is applied, Figure 2 is a partial front view of the net, Figure 3 is a cross-sectional view including the appearance of the drainage pipe, and Figure 4. Figure 5 is a diagram of the arrangement of the drain pipe fixed with a rope, Figure 5 is a diagram of the fixed state of the drain pipe, Figure 6 is a front view of an example of a wire clip, Figure 7 is a diagram of different fixing examples of the drain pipe, Figure 8 shows yet another fixing example, No. 9.
The figure is an external view of a coil that is an example of a coupling means. DESCRIPTION OF SYMBOLS 1... Slope, 2... Earth, 3... Drainage pipe, 4... Net body, 10, 10A to 10D... Rope, 16... Connection means (coil).

Claims (1)

[Scope of Claim for Utility Model Registration] A reinforcing facility consisting of a drainage pipe plunged almost horizontally into the ground on a slope, and a net stretched to cover the slope, the said drainage pipe is a winding structure of wire with an approximately inverted triangular cross section, the tip of which is installed with its tip protruding from the slope, and the protruding part of the drainage pipe from the ground is connected to each other by a rope stretched over the slope. 1. A slope reinforcement facility, characterized in that the rope is secured and the rope is attached to the net by means of a connecting means.