Side slope landslide prevention and control structure

Abstract

The utility model discloses a side slope landslide prevention and control structure, which belongs to the technical field of landslide prevention and control and comprises a plurality of groups of drainage components, every two adjacent groups of drainage components are communicated through a water collecting pipe, the outermost drainage component is communicated with one end of a drainage pipe, and the other end of the drainage pipe extends out of a side slope; each drainage assembly comprises a plurality of water collecting wells which are linearly arranged, at least one layer of annular permeable component is arranged on the outer side of each water collecting well, each layer of annular permeable component comprises a plurality of permeable pipe fittings which are evenly arranged around the outer circumferential side of the water collecting well and communicate with the water collecting well, and the ends, facing the water collecting wells, of the permeable pipe fittings incline downwards; the water collecting well is further communicated with a water collecting pipe or a water draining pipe, and the water collecting pipe or the water draining pipe is located below the bottommost annular permeable component. According to the side slope landslide prevention and treatment structure, accumulated water in the side slope can be drained out of the side slope, so that the purposes of reducing the underground water level in the side slope, reducing landslide thrust and improving the stability of the side slope are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of landslide prevention and control, in particular to a slope landslide prevention and control structure. Background Art

[0002] A landslide is a geological phenomenon in which soil and rock on a slope move downward along a sliding surface under the influence of gravity, either due to natural factors or human activity. This phenomenon typically occurs in areas with steep terrain or unstable soil, and is particularly prone to external forces such as heavy rainfall, rising groundwater levels, or earthquakes.

[0003] The existing methods for preventing and controlling slope landslides mostly adopt the method of reinforcing the slopes, which only treats the symptoms but not the root cause. Utility Model Content

[0004] To solve the above problems, the utility model provides a slope landslide prevention structure, which can drain the accumulated water inside the slope to the outside of the slope, so as to achieve the purpose of lowering the groundwater level in the slope, reducing the landslide thrust and improving the stability of the slope.

[0005] To achieve the above-mentioned purpose, the utility model provides a slope landslide prevention and control structure, comprising a plurality of drainage components arranged vertically along the sliding direction of the slope landslide layer, wherein two adjacent drainage components are connected via a water collecting pipe, the outermost drainage component is connected to one end of the discharge pipe, the other end of the discharge pipe extends out of the slope, and the water collecting pipe and the discharge pipe are both inclined toward the bottom of the slope;

[0006] Each drainage assembly includes a plurality of linearly arranged water collection wells, each water collection well having at least one layer of annular water permeable components disposed on the outside thereof, each layer of annular water permeable components including a plurality of water permeable pipes uniformly arranged around the outer circumference of the water collection well and connected to the water collection well, with the water permeable pipes being inclined downwardly toward one end of the water collection well;

[0007] The water collecting well is also connected with a water collecting pipe or a drainage pipe, and the water collecting pipe or the drainage pipe is located below the annular water permeable component at the bottom layer.

[0008] Preferably, the permeable pipe is a double-layer permeable pipe structure, comprising a rigid permeable outer pipe and a tough permeable inner pipe inserted into the rigid permeable outer pipe, the outer side of the tough permeable inner pipe being wrapped with an inner layer of permeable geotextile, and the inner layer of permeable geotextile being fastened to the outer side of the tough permeable inner pipe via a plastic tie;

[0009] Positioning sponges are filled between the hard water-permeable outer pipe and the tough water-permeable inner pipe, and filtering sponges are filled on the inner side of the tough water-permeable inner pipe close to one end of the water collection well.

[0010] Preferably, the rigid water-permeable outer tube and the tough water-permeable inner tube are both composed of multiple tube segments, and two adjacent tube segments of the rigid water-permeable outer tube are hot-melt fixedly connected, while two adjacent tube segments of the tough water-permeable inner tube are detachably connected via HDPE threaded buckles.

[0011] Preferably, the hard permeable outer tube and the tough permeable inner tube are both provided with permeable holes at 2 / 3 of the position near the water collection well, and the outer side of the hard permeable outer tube away from the water collection well is wrapped with an outer layer of permeable geotextile, which is fastened to the outer side of the hard permeable outer tube by plastic tie.

[0012] Preferably, the hard water-permeable outer tube is made of PE material, and the tough water-permeable inner tube is made of HDPE material.

[0013] Preferably, one end of the drainage pipe extending out of the slope is connected to a sand settling tank opened outside the slope.

[0014] Preferably, a filter screen is fixed on the inner wall of the water collection well between the annular water-permeable component at the bottom layer and the water collection pipe or drainage pipe.

[0015] Preferably, the connection line between the multiple water collection wells in the same group is parallel to the railway.

[0016] The utility model has the following beneficial effects:

[0017] By arranging drainage components, the accumulated water inside the slope can be drained to the outside of the slope, so as to achieve the purpose of lowering the groundwater level in the slope, reducing the landslide thrust and improving the stability of the slope.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a top view of a slope landslide prevention and control structure of the utility model;

[0020] Figure 2 This is a longitudinal cross-sectional view of a slope landslide prevention and control structure of the utility model;

[0021] Figure 3 This is an axial cross-sectional view of a water collection well of a slope landslide prevention and control structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the construction of a water-permeable pipe fitting for a slope landslide prevention and control structure of the utility model;

[0023] Figure 5 This is a cross-sectional view of a water-permeable pipe fitting of a slope landslide prevention and control structure according to the present invention.

[0024] Among them: 1. Water collection well; 2. Permeable pipe fittings; 21. Hard permeable outer pipe; 22. Positioning sponge; 23. Tough permeable inner pipe; 24. Filter sponge; 25. Inner permeable geotextile; 3. Water collection pipe; 4. Discharge pipe; 5. Grit chamber; 6. Filter screen; 7. Conical top cover; 8. Drilling hole. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that this embodiment is based on the technical solution and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to this embodiment.

[0026] like Figure 1-Figure 5 As shown, the structure of the utility model is a slope landslide prevention and control structure, including multiple groups of drainage components arranged vertically along the sliding direction of the slope landslide layer, two adjacent groups of drainage components are connected through a water collecting pipe 3, the outermost drainage component is connected to one end of the discharge pipe 4, the other end of the discharge pipe 4 extends out of the slope, and the water collecting pipe 3 and the drainage pipe are inclined toward the bottom of the slope, so as to facilitate the use of water gravity to discharge the slope; each group of drainage components includes multiple water collecting wells 1 arranged in a linear manner, and at least one layer of annular water-permeable components is provided on the outside of each water collecting well 1, and each layer of annular water-permeable components includes multiple permeable pipe fittings 2 uniformly arranged around the outer circumference of the water collecting well 1 and connected to the water collecting well 1, and the permeable pipe fittings 2 are inclined downward toward one end of the water collecting well 1; the water collecting pipe 3 or the drainage pipe is also connected to the water collecting well 1, and the water collecting pipe 3 or the drainage pipe is located below the annular water-permeable component at the bottom layer, that is, the two water collecting wells 1 corresponding to the two adjacent groups of drainage components are connected through the water collecting pipe 3.

[0027] In this embodiment, the distance between two adjacent layers of annular permeable components is 1m, the lowest layer of annular permeable components is 1.5m away from the bottom of the water collection well 1, the central angle between the multiple permeable pipe fittings 2 of the annular permeable components on the same layer is 30°, and the inclination angle of the permeable pipe fitting 2 is 8°-10°; the inclination angle of the water collection pipe 3 is 5°-6°, and the aperture is 150mm.

[0028] The permeable pipe fitting 2 is a double-layer permeable pipe structure, comprising a rigid outer permeable pipe 21 and a flexible inner permeable pipe 23 inserted into the rigid outer permeable pipe 21. The outer side of the flexible inner permeable pipe 23 is wrapped with an inner layer of permeable geotextile 25, which is fastened to the outer side of the flexible inner permeable pipe 23 via plastic tie wraps. A positioning sponge 22 is filled between the rigid outer permeable pipe 21 and the flexible inner permeable pipe 23, and a filter sponge 24 is filled on the inner side of the flexible inner permeable pipe 23 near the water collection well 1 to facilitate positioning of the flexible inner permeable pipe 23. The rigid outer permeable pipe 21 is made of PE, and the flexible inner permeable pipe 23 is made of HDPE. This double-layer structure, with a rigid outer layer and a flexible inner layer, offers both ultra-high rigidity (to ensure the pipe fitting is not squeezed or deformed) and ultra-high toughness (to ensure the pipe fitting is not broken).

[0029] The rigid water-permeable outer tube 21 and the tough water-permeable inner tube 23 are both composed of multiple pipe sections, and the adjacent two pipe sections of the rigid water-permeable outer tube 21 are hot-melt fixedly connected, and the adjacent two pipe sections of the tough water-permeable inner tube 23 are detachably connected via HDPE threaded buckles, so that when the tough water-permeable inner tube 23 is broken due to corrosion or other reasons, the tough water-permeable inner tube 23 can be pulled out in sections for easy replacement.

[0030] The hard permeable outer tube 21 and the tough permeable inner tube 23 are both provided with permeable holes at 2 / 3 of the position near the water collection well 1. The outer side of the hard permeable outer tube 21 away from the water collection well 1 is wrapped with an outer layer of permeable geotextile, and the outer layer of permeable geotextile is fastened to the outer side of the hard permeable outer tube 21 by plastic tie.

[0031] One end of the drainage pipe extending out of the slope is communicated with a grit chamber 5 opened on the outside of the slope.

[0032] A filter screen 6 is fixed on the inner wall of the water collection well 1 between the annular water-permeable component at the bottom layer and the water collection pipe 3 or the drainage pipe.

[0033] The connection line between the multiple water collection wells 1 in the same group is parallel to the railway.

[0034] Construction process: 1. Excavate the water collection well 1; 2. Use an electric downhole drill to drill a hole obliquely downward around the water collection well 1, so that the borehole 8 is connected to the water collection well 1, and the borehole 8 extends to the water-rich area or potential sliding surface, and the total length of the borehole 8 exceeds the permeable pipe 20.5m; 3. Use hot-melt connection to connect multiple pipe sections to form a hard permeable outer pipe 21, so that the length of the prepared hard permeable outer pipe 21 is adapted to the borehole 8, and then wrap the outer side of the non-insertion end of the hard permeable outer pipe 21 (about 1m near the non-insertion end) with an outer layer of permeable geotextile (specification not less than 100g / m 2), and fasten it with a plastic tie, insert the tapered hole-shaped top cover 7 into one end of the hard permeable outer tube 21, and then insert one end of the hard permeable outer tube 21 into the borehole 8, until the hard permeable outer tube 21 is inserted into the borehole 8, until it extends into the water collection well 1, remove the tapered hole-shaped top cover 7, and finally use clay, cement slurry or other water-stopping materials to seal the outer layer of permeable geotextile and the hole wall; 4. Use threaded connection to connect multiple pipe sections to form a tough permeable inner tube 23, so that the two ends of the prepared tough permeable inner tube 23 are respectively flush with the two ends of the hard permeable outer tube 21, and then plug the filter sponge 24 into the innermost end of the tough permeable inner tube 23, and then wrap the outside of the tough permeable inner tube 23 with a specification of not less than 100g / m 2 The inner layer of permeable geotextile 25, and then fix the positioning sponge 22 at intervals (2m) outside the tough permeable inner tube 23, and then insert the tough permeable inner tube 23 into the hard permeable outer tube 21; 5. Use concrete, clay or stone to fix the outer pipe mouth of the permeable pipe 2.

[0035] Working principle: The accumulated water inside the slope enters the tough permeable inner tube 23 through the permeable holes on the hard permeable outer tube 21, and slides into the water collection well 1 along the slope, and is then transmitted to the adjacent water collection pipe 3 through the water collection pipe 3, and is transmitted in sequence until it is discharged through the drainage pipe to the sedimentation tank 5 for sedimentation, completing the work of discharging the accumulated water inside the slope to the outside of the slope.

[0036] Therefore, the utility model adopts the slope landslide prevention structure of the above structure, and by arranging drainage components, the accumulated water inside the slope can be drained to the outside of the slope, so as to achieve the purpose of lowering the groundwater level in the slope, reducing the landslide thrust, and improving the stability of the slope.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A slope landslide prevention and control structure, characterized by: It includes multiple groups of drainage components arranged vertically along the sliding direction of the landslide layer of the slope. Adjacent groups of drainage components are connected through a water collection pipe. The outermost drainage component is connected to one end of the discharge pipe, and the other end of the discharge pipe extends out of the slope. The water collection pipe and the discharge pipe are inclined toward the bottom of the slope. Each drainage assembly includes a plurality of linearly arranged water collection wells, each water collection well having at least one layer of annular water permeable components disposed on the outside thereof, each layer of annular water permeable components including a plurality of water permeable pipes uniformly arranged around the outer circumference of the water collection well and connected to the water collection well, with the water permeable pipes being inclined downwardly toward one end of the water collection well; The water collection well is also connected to a water collection pipe or a drainage pipe, and the water collection pipe or the drainage pipe is located below the annular permeable component at the bottom layer; The permeable pipe fitting is a double-layer permeable pipe structure, comprising a rigid permeable outer pipe and a tough permeable inner pipe inserted into the rigid permeable outer pipe. The outer side of the tough permeable inner pipe is wrapped with an inner layer of permeable geotextile, which is fastened to the outer side of the tough permeable inner pipe by plastic tie bands. Positioning sponges are filled between the hard water-permeable outer pipe and the tough water-permeable inner pipe, and filtering sponges are filled on the inner side of the tough water-permeable inner pipe close to one end of the water collection well.

2. The slope landslide prevention structure according to claim 1, characterized in that: The rigid water-permeable outer pipe and the tough water-permeable inner pipe are both composed of multiple pipe sections, and the adjacent pipe sections of the rigid water-permeable outer pipe are hot-melt fixedly connected, while the adjacent pipe sections of the tough water-permeable inner pipe are detachably connected via HDPE threaded buckles.

3. The slope landslide prevention structure according to claim 1, characterized in that: The hard permeable outer pipe and the tough permeable inner pipe are both provided with permeable holes at 2 / 3 of the position near the water collection well. The outer side of the hard permeable outer pipe away from the water collection well is wrapped with an outer layer of permeable geotextile, and the outer layer of permeable geotextile is fastened to the outer side of the hard permeable outer pipe by plastic tie.

4. The slope landslide prevention structure according to claim 1, characterized in that: The hard permeable outer pipe is made of PE, and the tough permeable inner pipe is made of HDPE.

5. The slope landslide prevention structure according to claim 1, characterized in that: One end of the drainage pipe extending out of the slope is connected to a sand settling tank opened on the outside of the slope.

6. The slope landslide prevention structure according to claim 1, characterized in that: A filter is fixed on the inner wall of the water collection well between the annular water-permeable component at the bottom layer and the water collection pipe or the drainage pipe.

7. The slope landslide prevention structure according to claim 1, characterized in that: The connecting line between multiple water collection wells in the same group is parallel to the railway.

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