KR101340646B1 - Absorption pipe for slope stability - Google Patents

Abstract

The present invention relates to an underground absorbent tube for slope stabilization. The underground water absorption pipe inserted into the drilling hole formed on the slope according to an embodiment of the present invention is a drain pipe for quickly absorbing the infiltration water and the ground water introduced into the slope, and the ground water introduced through the drain pipe connected to the lower portion of the drain pipe. Absorbed quickly and discharged to the outside, the upper portion is composed of the discharge water induction pipe, the drain pipe is formed by winding the suction, drainage geosynthetic fiber in a cylindrical shape, the earth and sand through the outer surface and the end of the drain pipe inside the drain pipe To prevent the drain pipe from being blocked by the soil.

Description

Ground absorption pipe for slope stability {ABSORPTION PIPE FOR SLOPE STABILITY}

The present invention relates to a ground absorbing pipe for slope stability, and more specifically, to absorb the gap water penetrating into the slope quickly during the occurrence of rainfall to discharge to the outside to prevent the rise of the slope pressure inside the slope of the slope collapse It relates to a ground absorbing pipe for slope stability to increase the resistance.

In general, slopes (cut slopes) or natural slopes formed by cut and fill works in construction and civil engineering work increase the pore water pressure in the soil during rainfall, and when soils become saturated, resistance to soil activity decreases. There is a risk of collapse.

Therefore, in order to prevent collapse even when the slope becomes saturated, various reinforcement methods (retaining wall, anchor, soil nail, hard pile, gabion, etc.) are applied to the slope to artificially compensate for the deterrent against collapse. You should. These are methods of suppressing the active force of the slope soil saturated with rainfall penetrating by the external force is expensive construction cost, difficult construction.

Up to now, the earth drainage system of the earth structure has been drained by using a hollow pipe or a bundle pipe made of soft vinyl. This drainage occurs only when the gap between the back side of the earth structure is saturated and flow occurs.

In other words, since the gap is usually in an unsaturated state and the rainfall penetrates, the saturation gradually progresses to decrease the resistance of the soil layer. Therefore, a device for inhaling the gap water is required to prevent the degradation of the resistance.

Therefore, the present invention is to solve the above problems, the absorbent pipe formed by winding a double-sided hydrophilic nonwoven fabric, which is a geosynthetic fiber having excellent absorbency and excellent drainage, in a cylindrical shape on the outside of the hollow core tube, The underground water absorbing pipe formed on the inner upper surface is installed in the perforation hole formed on the inclined surface to quickly absorb and drain the unsaturated pore water existing inside the slope to minimize the adhesion of the soil and decrease the internal friction angle due to the increase in the pore pressure. It is to provide a ground absorbing pipe for slope stability that can prevent the settlement or collapse.

In order to achieve the above and other objects of the present invention, according to an embodiment of the present invention, in the underground absorbing pipe is inserted into the perforated hole formed in the slope, the drain pipe for quickly absorbing the infiltration water and groundwater introduced into the slope, It is coupled to the lower portion of the drain pipe and quickly absorbs the ground water introduced through the drain pipe and discharged to the outside, the upper portion is composed of the discharge water induction pipe, the drain pipe is formed by winding the suction, drainage geosynthetic fiber in a cylindrical shape The earth absorbing pipe for slope stability is provided to prevent the soil from being blocked by the soil by preventing the soil from entering the interior of the drain pipe through the outer surface and the end of the drain pipe.

The drain pipe is characterized in that the suction, drainage geosynthetic fiber is formed by winding a cylindrical shape on the outside of the core in order to prevent the shape deformation.

The absorption, drainage geotextile is characterized in that the double-sided hydrophilic nonwoven fabric with a plurality of voids formed on the outer surface.

At least one coupling band is provided at a predetermined position in the longitudinal direction of the drain pipe to prevent the suction and drainage geosynthetic fibers wound in a cylindrical shape from being separated or separated.

According to the present invention having the above-described configuration, a double-sided hydrophilic nonwoven fabric, which is a suction and drainage geotextile having a plurality of voids formed on its outer surface, is wound in a cylindrical shape, and a drain pipe is formed on the inner upper surface of the discharge water induction pipe to construct a ground absorbing pipe. Thus, by quickly absorbing the infiltration water introduced into the slope and discharged to the outside to prevent the increase in the pore water pressure inside the slope to minimize the reduction of the adhesion of the soil and the internal friction angle to prevent the reduction of the resistance to the slope activity force slope There is an effect that can prevent the collapse of the slope by the infiltration water flowing into the inside.

In addition, by absorbing and draining the gap water can prevent the decline of the resistance of the slope to prevent slope collapse can be used as a reinforcement method for slope stability.

In addition, the construction cost can be reduced to 1/3 to 1/5 compared with the conventional reinforcement method, there is a simple construction effect.

1 is a perspective view of a ground absorption pipe for slope stability according to an embodiment of the present invention.
Figure 2 is a cross-sectional view of the underground absorbing pipe for slope stability shown in FIG.
Figure 3a is a state diagram installed on the slope of the underground absorbing pipe for slope stability according to an embodiment of the present invention.
Figure 3b is a state diagram is installed on the retaining wall underground absorbing pipe for slope stability according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in more detail the underground absorbing pipe for slope stability according to a preferred embodiment of the present invention.

1 is a perspective view of a ground absorbing pipe for slope stability according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the ground absorbing pipe for slope stability shown in Figure 1, Figure 3a an embodiment of the present invention Figure 3b is a state diagram is installed on the slope of the underground absorbent pipe for the slope stability, Figure 3b is a state diagram installed on the retaining wall is a ground absorption pipe for slope stability according to another embodiment of the present invention.

1 to 3A, the ground water absorption pipe 100 for slope stability according to an embodiment of the present invention includes a discharge water guide pipe 102 having an upper portion opened along a length direction, and a discharge water guide pipe 102. It is composed of a drain pipe 104 which is seated on the inner upper surface along the longitudinal direction to absorb the ground gap water and discharge it to the discharge water induction pipe (102).

The discharge water induction pipe 102 is inserted into a drilling hole (not shown) formed in the interior of the slope 1, and the upper portion thereof is opened so that the infiltration water and groundwater introduced into the interior of the slope can be absorbed by the drain pipe 104 described later. do.

Here, the upper portion of the discharge water guide pipe 102 may open only a part or half.

The drain pipe 104 is seated on the inner upper surface of the discharge water induction pipe 102, and quickly absorbs the infiltration water and groundwater introduced into the slope 1 and discharges it to the discharge water induction pipe 102.

Such, the drain pipe 104 is formed by winding the suction, drainage geotextiles generally used in civil engineering in a cylindrical shape, the absorption, drainage geotextiles quickly absorb the infiltration water and groundwater introduced into the slope (1) A double-sided hydrophilic nonwoven fabric is used in which a plurality of voids 106 are formed on the outer surface so as to be discharged into the discharge water induction pipe 102.

In addition, since the drain pipe 104 is formed by winding in a cylindrical shape, the earth and sand are not introduced into the drain pipe 104 through the outer surface and the end of the drain pipe 104, so that the drain pipe 104 is prevented from being blocked by the soil. Can be.

Here, the drain pipe 104 is configured by winding a double-sided hydrophilic nonwoven fabric in a cylindrical shape as described above, but when the drain pipe 104 is inserted into the drilling hole (not shown) formed on the slope, the soil inside the slope 1 In order to prevent deformation due to settlement, it may be formed by winding a cylindrical shape on the outside of the core 108.

Here, the double-sided hydrophilic nonwoven fabric wound on the outside of the core 108 is preferably wound so as to have a diameter of 90mm.

The core 108 is preferably made of a hollow vinyl chloride tube or the like, and in this case, the diameter of the core 108 is preferably 25 mm.

In addition, at least one coupling band 110 is provided at a predetermined position in the longitudinal direction of the drain pipe 104. This, the coupling band 110 is to prevent the drain pipe 104 formed by winding in a cylindrical shape to be seated on the inner upper surface of the discharge water guide pipe 102 is spaced apart or separated from the ground.

At this time, the coupling band 110 is preferably disposed at 1.5m intervals.

Hereinafter, the operation of the underground absorbent tube for slope stabilization of the present invention configured as described above will be described.

First, the underground absorption pipe 100 assembled as shown in FIG. 3A is inserted into and installed in a drilling hole (not shown) formed in the slope 1.

At this time, the drilling hole is drilled with a diameter of 105mm, the underground absorbing pipe 100 is installed in the drilling hole is preferably installed at an inclination of 5 ~ 7 ° to secure a drainage gradient.

Subsequently, when rainfall occurs, the infiltration water due to the rainfall is introduced into the slope 1, and at the same time, the infiltration water into which the drain pipe 104 of the underground water absorption pipe 100 installed in the slope 1 is introduced. Is quickly absorbed, and the infiltration water absorbed in the drain pipe 104 is moved in the direction of gravity is discharged to the outside along the inner surface of the discharge water induction pipe (102).

That is, the underground water absorption pipe 100 quickly absorbs the infiltration water introduced into the slope 1 and discharges it to the outside, thereby preventing the pore water pressure inside the slope 1 from increasing, thereby reducing the cohesive force of the soil and the internal friction angle. By minimizing this, it is possible to prevent the decline of the slope due to the infiltration water flowing into the slope by preventing the reduction of the resistance to the slope activity.

In addition, a double-sided hydrophilic nonwoven fabric, which is a suction and drainage geosynthetic fiber having a plurality of voids 106 formed on an outer surface thereof, is wound in a cylindrical shape, and a drain pipe 104 formed on the inner upper surface of the discharge water induction pipe 102 is placed on the ground absorbent pipe ( By constructing 100, the underground absorbent tube 100 can be prevented from being blocked by inflow of soil.

In addition, when the 90 mm underground absorbent pipe 100 is inserted into the 105 mm drilled hole, a space is generated due to the difference in diameter between the drilled hole and the underground absorbent pipe 100. Due to settlement and relaxation of the soil inside the soil, the space generated between the underground absorbent pipe 100 and the perforation hole is filled with soil, so that the absorption activity between the soil and the double-sided hydrophilic nonwoven fabric is active, and the soil filled in the microspace of the double-sided hydrophilic nonwoven fabric The blockage phenomenon is a continuous structure due to the contact of the soil particles with more efficient absorption activity.

Figure 3b is a state diagram showing a state in which the underground absorbing pipe for slope stabilization is installed on the retaining wall according to another embodiment of the present invention is substantially the same as one embodiment of the present invention, detailed description of other embodiments will be omitted. .

Although the preferred embodiments of the present invention have been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention It can be understood that it is possible.

1: slope
100: underground absorption pipe
102: discharge water induction pipe
104: drain pipe
106: void
108: core
110: coupling band

Claims (4)

In the underground absorption pipe inserted into the drilling hole formed on the slope,
A drain pipe for quickly absorbing the infiltration water and ground water introduced to the slope, and coupled to the lower portion of the drain pipe to quickly absorb the ground water introduced through the drain pipe to discharge to the outside, the upper portion is composed of the discharge water induction pipe,
The drain pipe is formed by winding the suction and drainage geosynthetic fibers in a cylindrical shape so that soil is not introduced into the drain pipe through the outer surface and the end of the drain pipe, thereby preventing the drain pipe from being blocked by the soil. Underground absorption pipe.
The method of claim 1, wherein the drain pipe,
The underground absorbent tube for slope stabilization, characterized in that the suction, drainage geosynthetic fiber is formed by winding a cylindrical shape on the outside of the core to prevent the deformation.
The method according to claim 1,
The absorption, drainage geotextile is a water absorption tube for slope stabilization, characterized in that the double-sided hydrophilic nonwoven fabric with a plurality of voids formed on the outer surface.
The method according to claim 1 or 2,
The water absorption pipe for slope stabilization, characterized in that at least one coupling band for preventing the separation or separation of the suction, drainage geosynthetic fibers wound in a cylindrical shape in a predetermined position in the longitudinal direction of the drain pipe.

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