JPH1018294A - Stable structure of slope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent depression of a slope and collapse of a frame body by arranging an assembled drain pipe from a mountain side to a valley side, laying a water collection pipe in the underground of a naked ground part, connecting the water collection pipe to the assembled drain pipe and smoothly draining rain water permeating in a slope. SOLUTION: The diameter of an assembled drain pipe 10a is larger than that of a water collection pipe 15a, smooth outflow is contrived, when soil enters the inside of the pipe 10a and is blocked therein, a rod or the like is inserted therein and soil is washed. A countermeasure for forming an opening part covered by a cap in the neighborhood of the ground on its edge is performed. In addition, the water collection pipes 15a are arranged at proper intervals in the traverse direction of a slope in consideration of a rain water amount, and their edges are connected to the assembled drain pipe 10a. Therefor water permeated in the slope is collected in the assembled drain pipe 10a by setting the water collection pipes 15a and the assembled drain pipe 10a on the slope. Thereby drain is smoothly performed and soil and sand of a naked ground part 5 can be prevented from being flowed out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stable structure for slopes such as embankments and cliffs, and more particularly to drainage of rainwater and the like.

[0002]

2. Description of the Related Art In order to prevent landslides on slopes such as embankments, cliffs, etc., as a structure for installing and stabilizing a concrete frame, a method of assembling a frame using a concrete product, a method of assembling a site, etc. It has been known. FIG.
Is a partial perspective view showing an example of such a conventional slope stable structure, in which a concrete frame 2, that is, a vertical frame 2a and a horizontal frame 2b are stacked on an inclined slope. The frame 2 is installed in an intersecting lattice shape, and an anchor (not shown) is embedded in the ground at an appropriate place and fixed. Seed dispersal is performed in the bare land portion 5 partitioned by the frame 2 (2a, 2b).
Thick base material spraying, sandbag stacking, stone stuffing, etc. are performed. In the horizontal frame 2b, a drain hole 20 communicating between the mountain side and the bare ground part 5 below the valley side is formed to penetrate therethrough. The water flowing down is discharged from the drain hole 20 while passing through the bare land portion 5 below.

[0003]

In the above-mentioned conventional stable structure of a slope, the amount of water flowing through the bare part 5 on the valley side is added to the amount of water that sequentially flows down from the bare part 5 on the mountain side above it. Therefore, it is difficult to discharge the water from the drain hole 20 more quickly. Therefore, a large amount of water penetrates deeply into the bare land 5 to scour the soil, and the slope of the slope is depressed and the frame 2 (2
a, 2b), and when the frame is installed on a rock part where water does not penetrate, there are problems such as the outflow of buried soil. Therefore, the present invention is to provide a stable structure of the slope to solve such a problem.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a stable structure for a slope, in which a drainage pipe is provided from a mountain side to a valley side of the slope, and the slope is disposed in the ground in a lateral direction of the slope. The drainage pipe is laid in the drainage pipe, and the drainage pipe is connected to the drainage pipe. Water collected by the drainage pipe is drained through the drainage pipe so that drainage can be performed smoothly and construction can be performed easily. it can.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partial perspective view of a stable structure of a slope, and FIG. 2 is a cross-sectional view of FIG. is there. A concrete frame 2, that is, a vertical frame 2a and a horizontal frame 2b are installed on the inclined slope in a lattice pattern in which the vertical frame 2a and the horizontal frame 2b intersect with each other in multiple layers. A main anchor 3a is fixed at an intersection with the frame 2b, and auxiliary anchors 3b are fixed to the vertical frame 2a and the horizontal frame 2b by being embedded in the ground at appropriate intervals. In the bare ground portion 5 divided by the vertical frame 2a and the horizontal frame 2b, soil and sandbags are piled up to the surface height of the frame 2, and plants and the like are further planted to harmonize the landscape. Or planted.

A collecting drainage pipe 10a such as a resin pipe made of vinyl chloride or the like or an earth pipe is provided as a collecting drainage passage 10 for each of the parallel bare ground portions 5 along the vertical frame 2a. Is laid under the bare ground portion 5 while penetrating through each horizontal frame 2b. In order to enable the operation of inserting a stick or the like or flushing with water in the case where the mixed drainage pipe 10a becomes slightly obstructed due to contamination of the pipe, its tip (mountain side of the slope) is near the ground. A measure is taken to form the opening 13 covered by the cap 12.

[0007] The collective drainage pipe 10a is formed with an inflow port 11 for introducing water flowing down to each bare land portion 5. In order to make the discharge of water more complete, the inflow port 11 is located lower than the full water level h of the bare ground portion 5 and located immediately above the horizontal frame 2b that partitions the bare ground portion 5. Is done. In order to prevent inundation, the surface above the horizontal frame 2b is stopped by, for example, spraying mortar to the surface to the position of the full water level h of the bare ground portion 5 or laying a resin plate having no rust. It is desirable to form the water part 4.

In the above-mentioned structure of the slope, the water which permeates and flows down into the ground of each bare land portion 5 at the time of rainfall, when springing out of groundwater, etc., flows from the inlet 11 to collective drainage having a small flow resistance. The water flows into the pipe 10a, is quickly discharged toward the valley side, and flows out into the drainage groove 17 installed at the lower part of the valley side. Therefore, the discharge hole 2 provided in the conventional horizontal frame 2b shown in FIG.
When the water is drained at 0, the water amount of the bare land 5 on the valley side increases due to the addition of the water amount from the mountain side, and the resistance to flowing through the underground of the bare land 5 is large. A lot of water seeps into the ground.

However, in the case of this embodiment,
Since the water that has flowed down for each bare land portion 5 is guided to the drainage collection pipe 10a and discharged, the amount of water in the bare land portion 5 on the valley side does not increase, and the amount of infiltration into the ground can be reduced. Accidents such as sinking due to scouring can be avoided, and when the frame 2 is installed on a rock, outflow of buried soil can be avoided. Furthermore, by forming the water stopping portion 4 on the ground on the upper side of the horizontal frame 2b, water can be stored, and flooding into the ground can be more effectively prevented.

Next, a description will be given of an example in which a water collecting pipe 15a is provided to speed up the flow of water into the collecting drain pipe 10a. FIG. 3 is a partial front view of the stable structure of the slope, and members corresponding to those in FIGS. 1 and 2 are denoted by the same reference numerals.
As shown in FIG. 3 (a), the water collecting materials 15 are buried in the ground in a staggered arrangement over the width of each of the bare land portions 5 in one section, and are disposed in the drainage pipe 10a. It is connected to the entrance 11. The water collecting material 15 is for collecting water, and a water collecting pipe 15a as an example thereof is shown in an enlarged perspective view (a) of FIG. In other words, the water collecting pipe 15a uses a circular pipe made of a vinyl chloride resin or the like, and has an upper half surface for injecting water of the bare ground portion 5 while preventing inflow of soil particles and the like.
A number of small inflow holes 16 are provided. Water collecting material 15
As shown in an enlarged perspective view (b) of FIG. 4, a water collecting mat 15 made of a porous resin or ceramic capable of penetrating large amounts of water.
b can also be used.

Incidentally, a water collecting mat 15b may be used instead of the collecting drain pipe 10a. Water collecting material 1
5 may be arranged horizontally, but in this example, it is arranged so as to be inclined downward toward the collecting drain pipe 10a in order to improve the flow, and the top is shown in FIG. Is lower than the position of the full water level h. In the case where the water collecting pipe 15a is used as the water collecting material 15, a measure for blocking the opening 13 with the cap 12 is provided at the end of the water collecting pipe 15a in the same manner as provided at the end of the collecting drain pipe 10a shown in FIG. It has been given.

In the above structure, the water that has flowed down the underground of each bare land portion 5 flows into the collecting drain pipe 10a through the water collecting material 15. Therefore, in the case of only the collecting drainage pipe 10a, the water that has flowed down to the end of the bare ground portion 5 distant from the collecting drainage pipe 10a penetrates into the ground having a large resistance, and partly in the process. Unlike the case in which the water penetrates deeply into the ground and then flows into the collecting drain pipe 10a, as in this example, it can quickly flow into the collecting drain pipe 10a through the water collecting material 15,
The amount of inundation into the ground can be further reduced. In addition, the water collecting material 15
As shown in FIG. 3 (b), it can be arranged over two or more sections of the bare land 5, and in this case, the collecting drain pipe 10a
Can be reduced.

Next, an example in which a collective drainage passage 10b is provided in the frame 2 as the collective drainage passage 10 instead of the collective drainage pipe 10a will be described. FIG. 5 is a partial front view of a stable structure of a slope showing another example, and FIG. 6 is a sectional view taken along the line BB in FIG. 5, and members corresponding to those in FIG.

A drainage passage 10b extending from the mountain side to the valley side of the slope is formed through the vertical frame 2a.
An inlet 11 leading to b is provided on both sides. FIG.
As shown on the lower side, a water collecting material 15 such as a water collecting pipe or a water collecting mat is disposed over one or two or more sections of the bare ground 5,
It may be connected to the inflow port 11 of the collective drainage passage 10b.

In the above structure, water flowing down the ground at each bare land portion 5 flows directly from the inlet 11 to the collecting drain passage 10b or from the water collecting material 15 to the collecting drain passage 10b. It is quickly discharged and the same effect as described above can be obtained.

Next, another stable structure for the slope will be described with reference to FIG. FIG. 7 shows a concrete frame 2, that is, a vertical frame 2 on an inclined surface, as in FIG.
a and the horizontal frame 2b are installed in a lattice shape in which the horizontal frame 2b intersects in multiple layers. The frame 2 has a main anchor (not shown) at the intersection of the vertical frame 2a and the horizontal frame 2b, and Auxiliary anchors (not shown) are embedded in the ground and fixed to the vertical frame 2a and the horizontal frame 2b at appropriate intervals. Further, in the bare ground portion 5 divided by the vertical frame 2a and the horizontal frame 2b, soil or sandbags are piled up to the surface height of the frame 2, and plants and plants are planted in order to harmonize the landscape. Kinds are planted.

At substantially the center of the bare part 5, a water collecting material 15 shown in FIG. 4 extends from the mountain side to the valley side of the slope while passing through each horizontal frame 2b. It is laid inside. This embodiment has a very simple structure, and water flowing down the ground in each bare land portion 5 is formed by a water collecting material 15.
In this case, the water flows into a large number of small inflow holes 16 and flows down while gathering sequentially, thereby reducing the amount of water infiltration into the bare ground 5 and avoiding accidents such as sinking caused by scouring.

Next, FIG. 8 which is a partial perspective view showing a stable structure of the slope, and FIG. 9 which shows a cross section B-B of FIG. 8 show a stable structure when the frame 2 is not formed on the slope. . As shown in FIG. 9, the collecting drain pipe 10 a is a resin pipe such as vinyl chloride or an earth pipe, and is formed from the mountain side to the valley side of the slope at appropriate intervals in consideration of the amount of rainwater from the mountain side to the valley side. It is laid underground via a main anchor 3a.

The collecting drain pipe 10a is selected to have a larger diameter than a collecting pipe 15a to be described later so as to make a smooth outflow. In order to enable the operation of inserting a rod or the like or washing away with water, measures are taken to form an opening 13 whose tip (mountain side of the slope) is covered with a cap 12 near the ground.

Further, water collecting pipes 15a (see FIG. 4) are disposed at appropriate intervals in the lateral direction of the slope in consideration of the amount of rainwater, and their ends are connected to the collecting drain pipe 10a. is there.
These water collecting pipes 15a may use water collecting mats 15b or are preferably installed in an inclined manner, but are installed almost horizontally for easy construction. In the present embodiment, since the slope is not divided by the frame 2, the lath net 40 is formed on the surface so that the soil of the bare land 5 does not flow as much as possible.
Is covered.

As described above, by installing the water collecting pipe 15a and the collective drainage pipe 10a on the slope, the water permeating the slope is collected by the collective drainage pipe 10a via the water collecting pipe 15a. Can be performed smoothly. Therefore, it is possible to prevent the earth and sand from flowing out of the bare land portion 5.

[0022]

According to the stable structure of the slope according to the present invention, the construction is simple, and the water that has flowed down to the bare land can be smoothly collected and drained after being collected in the collecting pipe. In addition, the amount of inundation into the ground can be reduced, and accidents such as sinking due to scouring can be avoided.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing a stable structure of a slope.

FIG. 2 is a sectional view taken along arrows A to A in FIG.

FIG. 3 is a partial front view of a stable structure of a slope showing another example.

FIG. 4 is an enlarged perspective view of a water collecting material.

FIG. 5 is a partial front view of a stable structure of a slope showing another example.

FIG. 6 is a sectional view taken along arrows BB in FIG. 5;

FIG. 7 is a view showing another stable structure of a slope;

FIG. 8 is a partial perspective view showing another example of a stable structure of a slope.

FIG. 9 is a sectional view taken along the line BB of FIG. 8;

FIG. 10 is a partial perspective view showing a conventional slope stable structure.

[Explanation of symbols]

 Reference Signs List 2 Frame 2a Vertical frame 2b Horizontal frame 4 Water stop 5 Bare ground 10 Collective drainage channel 10a Collective drainage pipe 10b Collective drainage passage 11 Inflow port 15 Water collecting material 15a Water collecting pipe 15b Water collecting mat 16 Inflow hole

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[Procedure amendment]

[Submission date] July 11, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Stable surface stable structure

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stable structure for slopes such as embankments and cliffs, and more particularly to drainage such as rainwater.

[0002]

2. Description of the Related Art In order to prevent landslides on slopes such as embankments, cliffs, etc., as a structure for installing and stabilizing a concrete frame, a method of assembling a frame using a concrete product, a method of assembling a site, etc. It has been known. FIG.
Is a partial perspective view showing an example of such a conventional slope stable structure, in which a concrete frame 2, that is, a vertical frame 2a and a horizontal frame 2b are stacked on an inclined slope. The frame 2 is installed in an intersecting lattice shape, and an anchor (not shown) is embedded in the ground at an appropriate place and fixed. Seed dispersal is performed in the bare land portion 5 partitioned by the frame 2 (2a, 2b).
Thick base material spraying, sandbag stacking, stone stuffing, etc. are performed. In the horizontal frame 2b, a drain hole 20 communicating between the mountain side and the bare ground part 5 below the valley side is formed to penetrate therethrough. It flows down in water, while sequentially through the bare portion 5 of the downwardly from the drain hole 20, and is drained.

[0003]

In the above-mentioned conventional stable structure of a slope, the amount of water flowing through the bare part 5 on the valley side is added to the amount of water that sequentially flows down from the bare part 5 on the mountain side above it. Therefore, it is difficult to drain the water more quickly than the drain hole 20. Therefore, a large amount of water penetrates deeply into the bare land 5 to scour the soil, and the slope of the slope is depressed and the frame 2 (2
a, 2b), and when the frame is installed on a rock part where water does not penetrate, there are problems such as the outflow of buried soil. Therefore, the present invention is to provide a stable structure of the slope to solve such a problem.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a stable structure for a slope, in which a drainage pipe is provided from a mountain side to a valley side of the slope, and the slope is disposed in the ground in a lateral direction of the slope. The drainage pipe is laid in the drainage pipe, and the drainage pipe is connected to the drainage pipe. Water collected by the drainage pipe is drained through the drainage pipe so that drainage can be performed smoothly and construction can be performed easily. it can.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partial perspective view of a stable structure of a slope, and FIG. 2 is a cross-sectional view of FIG. is there. A concrete frame 2, that is, a vertical frame 2a and a horizontal frame 2b are installed on the inclined slope in a lattice pattern in which the vertical frame 2a and the horizontal frame 2b intersect with each other in multiple layers. A main anchor 3a is fixed at an intersection with the frame 2b, and auxiliary anchors 3b are fixed to the vertical frame 2a and the horizontal frame 2b by being embedded in the ground at appropriate intervals. In the bare ground portion 5 divided by the vertical frame 2a and the horizontal frame 2b, soil and sandbags are piled up to the surface height of the frame 2, and plants and the like are further planted to harmonize the landscape. Or planted.

A collecting drainage pipe 10a such as a resin pipe made of vinyl chloride or the like or an earthen pipe is provided as a collecting drainage passage 10 for each of the parallel bare ground portions 5 along the vertical frame 2a. Is laid under the bare ground portion 5 while penetrating through each horizontal frame 2b. In order to enable the operation of inserting a stick or the like or flushing with water when soil is mixed into the collecting drainage pipe 10a and the pipe becomes slightly obstructed, its tip (the mountain side of the slope) is near the ground. A measure is taken to form the opening 13 covered by the cap 12.

[0007] The collective drainage pipe 10a is formed with an inflow port 11 for introducing water flowing down to each bare land portion 5. In order to make the discharge of water more complete, the inflow port 11 is located lower than the full water level h of the bare ground portion 5 and located immediately above the horizontal frame 2b that partitions the bare ground portion 5. Is done. In order to prevent inundation, the surface above the horizontal frame 2b is stopped by, for example, spraying mortar to the surface to the position of the full water level h of the bare ground portion 5 or laying a resin plate having no rust. It is desirable to form the water part 4.

In the above-mentioned structure of the slope, the water which permeates and flows down into the ground of each bare land portion 5 at the time of rainfall, when springing out of groundwater, etc., flows from the inlet 11 to collective drainage having a small flow resistance. The water flows into the pipe 10a, is quickly drained toward the valley side, and flows out to the drain groove 17 provided at the lower part of the valley side. Therefore, the discharge hole 2 provided in the conventional horizontal frame 2b shown in FIG.
When the water is drained at 0, the water amount of the bare land 5 on the valley side increases due to the addition of the water amount from the mountain side, and the resistance to flowing through the underground of the bare land 5 is large. A lot of water seeps into the ground.

However, in the case of this embodiment,
Since the water that has flowed down for each bare land portion 5 is guided to the drainage collection pipe 10a and discharged, the amount of water in the bare land portion 5 on the valley side does not increase, and the amount of infiltration into the ground can be reduced. Accidents such as sinking due to scouring can be avoided, and when the frame 2 is installed on a rock, outflow of buried soil can be avoided. Furthermore, by forming the water stopping portion 4 on the ground on the upper side of the horizontal frame 2b, water can be stored, and flooding into the ground can be more effectively prevented.

Next, a description will be given of an example in which a water collecting pipe 15a is provided to speed up the flow of water into the collecting drain pipe 10a. FIG. 3 is a partial front view of the stable structure of the slope, and members corresponding to those in FIGS. 1 and 2 are denoted by the same reference numerals.
As shown in FIG. 3A, the water collecting materials 15 are buried in the ground in a staggered arrangement over the width of each of the bare ground portions 5 in one section, and the flow through the drainage pipe 10a is performed. It is connected to the entrance 11. The water collecting material 15 is for collecting water, and a water collecting pipe 15a as an example thereof is shown in an enlarged perspective view (a) of FIG. In other words, the water collecting pipe 15a uses a circular pipe made of a vinyl chloride resin or the like, and the upper half thereof is used to prevent water from flowing in the bare ground 5 while preventing inflow of soil particles and the like.
A number of small inflow holes 16 are provided. Water collecting material 15
As shown in an enlarged perspective view (b) of FIG. 4, a water collecting mat 15 made of a porous resin or ceramic capable of penetrating large amounts of water.
b can also be used.

Incidentally, a water collecting mat 15b may be used instead of the collecting drain pipe 10a. Water collecting material 1
5 may be arranged horizontally, but in this example, it is arranged so as to be inclined downward toward the collecting drain pipe 10a in order to improve the flow, and the top is shown in FIG. It is lower than the position of the full water level h. In the case where the water collecting pipe 15a is used as the water collecting material 15, a measure for blocking the opening 13 with the cap 12 is provided at the end of the water collecting pipe 15a in the same manner as provided at the end of the collecting drain pipe 10a shown in FIG. It has been given.

In the above structure, the water that has flowed down the underground of each bare land portion 5 flows into the collecting drain pipe 10a through the water collecting material 15. Therefore, in the case of only the collecting drainage pipe 10a, the water that has flowed down to the end of the bare ground portion 5 distant from the collecting drainage pipe 10a penetrates into the ground having a large resistance, and partly in the process. Unlike the case in which the water penetrates deeply into the ground and then flows into the collecting drain pipe 10a, as in this example, it can quickly flow into the collecting drain pipe 10a through the water collecting material 15,
The amount of inundation into the ground can be further reduced. In addition, the water collecting material 15
As shown in FIG. 3 (b), it can be arranged over two or more sections of the bare ground 5, and in this case, the collecting drain pipe 10a
Can be reduced.

Next, an example in which a collective drainage passage 10b is provided in the frame 2 as the collective drainage passage 10 instead of the collective drainage pipe 10a will be described. FIG. 5 is a partial front view of a stable structure of a slope showing another example, and FIG. 6 is a sectional view taken along the line BB in FIG. 5, and members corresponding to those in FIG.

A drainage passage 10b extending from the mountain side to the valley side of the slope is formed through the vertical frame 2a.
An inlet 11 leading to b is provided on both sides. FIG.
As shown on the lower side of the figure, a water collecting material 15 such as a water collecting pipe or a water collecting mat is arranged over one or two or more sections of the bare ground 5,
It may be connected to the inflow port 11 of the collective drainage passage 10b.

In the above structure, water flowing down the ground at each bare land portion 5 flows directly from the inlet 11 to the collecting drain passage 10b or from the water collecting material 15 to the collecting drain passage 10b. The water is quickly drained , and the same effect as described above can be obtained.

Next, another stable structure for the slope will be described with reference to FIG. FIG. 7 shows a concrete frame 2, that is, a vertical frame 2 on an inclined surface, as in FIG.
a and the horizontal frame 2b are installed in a lattice shape in which the horizontal frame 2b intersects in multiple layers. The frame 2 has a main anchor (not shown) at the intersection of the vertical frame 2a and the horizontal frame 2b, and Auxiliary anchors (not shown) are embedded in the ground and fixed to the vertical frame 2a and the horizontal frame 2b at appropriate intervals. Further, in the bare ground portion 5 divided by the vertical frame 2a and the horizontal frame 2b, soil or sandbags are piled up to the surface height of the frame 2, and plants and plants are planted in order to harmonize the landscape. Kinds are planted.

At substantially the center of the bare part 5, a water collecting material 15 shown in FIG. 4 extends from the mountain side to the valley side of the slope while passing through each horizontal frame 2b. It is laid inside. This embodiment has a very simple structure, and water flowing down the ground in each bare land portion 5 is formed by a water collecting material 15.
In this case, the water flows into a large number of small inflow holes 16 and flows down while gathering sequentially, thereby reducing the amount of water infiltration into the bare ground 5 and avoiding accidents such as sinking caused by scouring.

Next, FIG. 8 which is a partial perspective view showing a stable structure of the slope, and FIG. 9 which shows a cross section B-B of FIG. 8 show a stable structure when the frame 2 is not formed on the slope. . As shown in FIG. 9, the collecting drain pipe 10 a is a resin pipe such as vinyl chloride or an earth pipe, and is formed from the mountain side to the valley side of the slope at appropriate intervals in consideration of the amount of rainwater from the mountain side to the valley side. It is laid underground via a main anchor 3a.

The collecting drain pipe 10a is selected to have a larger diameter than a collecting pipe 15a to be described later so as to make a smooth outflow. In order to enable the operation of inserting a rod or the like or washing away with water, measures are taken to form an opening 13 whose tip (mountain side of the slope) is covered with a cap 12 near the ground.

The water collecting pipes 15a (see FIG. 4) are arranged at appropriate intervals in the lateral direction of the slope in consideration of the amount of rainwater, and their ends are connected to the collecting drain pipe 10a. .
These water collecting pipes 15a may use water collecting mats 15b or are preferably installed in an inclined manner, but are installed almost horizontally for easy construction. In the present embodiment, since the slope is not divided by the frame 2, the lath net 40 is formed on the surface so that the soil of the bare land 5 does not flow as much as possible.
Is covered.

As described above, by installing the water collecting pipe 15a and the collective drainage pipe 10a on the slope, the water permeating the slope is collected by the collective drainage pipe 10a via the water collecting pipe 15a. Can be performed smoothly. Therefore, it is possible to prevent the earth and sand from flowing out of the bare land portion 5.

[0022]

According to the stable structure of the slope according to the present invention, the construction is simple, and the water that has flowed down to the bare land can be smoothly collected and drained after being collected in the collecting pipe. In addition, the amount of inundation into the ground can be reduced, and accidents such as sinking due to scouring can be avoided.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing a stable structure of a slope.

FIG. 2 is a sectional view taken along arrows A to A in FIG.

FIG. 3 is a partial front view of a stable structure of a slope showing another example.

FIG. 4 is an enlarged perspective view of a water collecting material.

FIG. 5 is a partial front view of a stable structure of a slope showing another example.

FIG. 6 is a sectional view taken along arrows BB in FIG. 5;

FIG. 7 is a view showing another stable structure of a slope;

FIG. 8 is a partial perspective view showing another example of a stable structure of a slope.

FIG. 9 is a sectional view taken along the line BB of FIG. 8;

FIG. 10 is a partial perspective view showing a conventional slope stable structure.

[Description of Signs] 2 Frame 2a Vertical Frame 2b Horizontal Frame 4 Water Stop 5 Bare Land 10 Collecting Drainage Channel 10a Collecting Drainage Pipe 10b Collecting Drainage Channel 11 Inlet 15 Water Collection Material 15a Water Collection Tube 15b Water Collection Mat 16 Inflow hole

Claims (1)

[Claims] 1. A stable structure of an inclined slope, wherein a drainage pipe is installed from a mountain side to a valley side of the slope, and the slope is gathered in a bare ground portion in a lateral direction of the slope. A stable structure for a slope, wherein a water pipe is laid and the water collection pipe is connected to the collecting drain pipe.