Rainfall type landslide toughness control system

Abstract

The rainfall type landslide toughness control system comprises herbaceous plants planted at the top of a slope, a water collecting well is arranged in the middle of the slope and filled with a plurality of inverted filter material bags, a water guide groove is formed in the bottom of the slope, and the water collecting well and the water guide groove are connected through a plurality of siphon drainage pipes; a water collecting well cover is arranged on the top of the water collecting well, and a reinforced gabion retaining wall is fixed to the water collecting well cover. According to the method, three-dimensional multi-layer prevention and control can be achieved, different from an existing rainfall type landslide prevention and control measure which only aims at single drainage before landslide or single filtering blocking after landslide, rainwater infiltration is reduced by integrating the hydrophobic characteristic of herbaceous plants, and the slope stability is improved in cooperation with reinforced soil fixation of plant roots; after rainwater forms surface runoff, an energy dissipation and multi-layer filtering system is adopted, the comprehensive treatment capacity of rainfall type landslide is greatly improved, and the requirements for ecological sustainability and flexible disaster prevention adaptability are met.

Description

Technical Field

[0001] The invention relates to the technical field of landslide prevention and control, and in particular to a rainfall-type landslide toughness prevention and control system. Background Art

[0002] With global climate change, the instability of slopes caused by rainwater infiltration after rainfall and the formation of landslides are becoming more and more common in my country, with the characteristics of many points, wide area, small scale and high frequency. Traditional landslide disaster prevention and control mainly forms a prevention and control system with traditional support forms such as slope cutting, drainage, anchor cables (cables), anti-slide piles, retaining walls, etc., but in the face of rainfall-type landslide disasters, there is often a conservative structural design resulting in high engineering costs, which is difficult to meet the green, economical and sustainable point-to-surface prevention and control needs; and the existing disaster prevention and control system is difficult to take into account the requirements of resilience disaster prevention and ecological sustainability. Therefore, it is necessary to propose a more economical, green and sustainable rainfall-type landslide resilience prevention and control system that takes into account the requirements of resilience disaster prevention and ecological sustainability. Summary of the invention

[0003] In order to overcome the defects of existing rainfall-type landslide disaster prevention measures and take into account the requirements of resilience disaster prevention and ecological sustainability, the present invention provides a rainfall-type landslide resilience prevention system to make rainfall-type landslide disaster prevention more economical, green and sustainable.

[0004] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is: A rainfall-type landslide resilience prevention and control system is provided, comprising herbaceous plants planted on the top of a slope, a water collection well arranged in the middle of the slope, the water collection well being filled with a plurality of anti-filter material bags, a water guide trough arranged at the bottom of the slope, the water collection well and the water guide trough being connected via a plurality of siphon drainage pipes; a water collection well cover and a reinforced gabion retaining wall are arranged on the top of the water collection well, and the reinforced gabion retaining wall is installed on the water collection well.

[0005] Furthermore, the water collection well cover comprises an upper fixed water permeable cover and a lower opening and closing water permeable cover, both of which are provided with drainage holes, the upper fixed water permeable cover is connected with the lower opening and closing water permeable cover by a plurality of hinges, and the top of the upper fixed water permeable cover is fixed to the upper side of the water collection well by a plurality of well cover fixing parts; the reinforced gabion retaining wall is fixed to the upper fixed water permeable cover; Furthermore, the manhole cover fixing piece is a rivet or an expansion bolt.

[0006] Furthermore, the upper fixed water-permeable cover, the lower opening and closing water-permeable cover and the hinge are connected by a plurality of bolts.

[0007] Furthermore, the reinforced gabion retaining wall includes a rectangular reinforced steel frame and a reinforced steel mesh, the reinforced steel frame and the reinforced steel mesh form a rectangular reinforced steel cage, the rectangular reinforced steel cage is filled with pebbles, a number of bottom embedded steel bars are fixed at the bottom of both sides of the reinforced steel frame, and the bottom of the bottom embedded steel bars is implanted into the wall of the water collection well.

[0008] Furthermore, the water collection well comprises a water collection well wall reinforcement frame and impermeable concrete. The water collection well wall reinforcement frame is formed by connecting vertical main bars, transverse main bars and stirrups. The water collection well wall reinforcement frame is poured with impermeable concrete to form the water collection well wall.

[0009] Furthermore, it also includes a plurality of anchor cables, one end of each anchor cable is fixed in the slope, and the other end is fixedly connected to the reinforced gabion retaining wall.

[0010] Furthermore, flow meters are provided on the outlet sides of the plurality of siphon drainage pipes.

[0011] Furthermore, the siphon drain pipe includes a water pipe body and a stainless steel wire mesh, and the stainless steel wire mesh is filled in the water pipe body.

[0012] Furthermore, a water-impermeable concrete layer is arranged inside the water channel, and the water-impermeable concrete layer forms the water channel wall.

[0013] The beneficial effects of the present invention are: The present invention can realize three-dimensional multi-level prevention and control. Different from the previous rainfall-type landslide prevention measures which only focus on single drainage before the landslide occurs or set up a single filtering barrier after the landslide, the present invention combines the hydrophobic characteristics of herbaceous plants to reduce rainwater infiltration and combines with the reinforcement of plant roots to improve slope stability. After the rainwater forms surface runoff, it adopts energy dissipation and multi-level filtration system, which greatly improves the comprehensive control capacity of rainfall-type landslides and takes into account the needs of ecological sustainability and resilience in disaster prevention and adaptability.

[0014] The present invention meets the requirements of resilient disaster prevention. Different from the previous single filtration, drainage and blocking measures of slope drainage, the drainage system is often difficult to restore or continue to use after a single rainstorm event. The present invention designs a multi-channel surface water filtration system. By replacing the anti-filter material bag and cleaning the stainless steel wire in the filter siphon drainage pipe, the performance of the prevention and control system can be quickly restored, meeting the redundancy and recoverability requirements in resilient disaster prevention.

[0015] The invention is easy to construct and has low economic cost. Different from the previous landslide control measures that are caused by excessive protection and high cost, the invention designs herbaceous plants to be planted on the slope surface to form the first drainage system to reduce rainwater infiltration, and rarely requires manual intervention and later maintenance; the semi-open cover water collection well is formed at the beginning of the setting, and the filter material bag is replaced and the filter siphon drainage pipe is cleaned later, which is convenient for construction and has low long-term cost.

[0016] The anti-filtration reinforced gabion retaining wall of the present invention is located in the middle of the water collection well. A part of the surface water first flows into the water collection well, reducing the surface water flow passing through the retaining wall; the anti-filtration gabion retaining wall intercepts and dissipates the remaining surface water and filters it for a second time to flow into the water collection well, effectively avoiding the disadvantage that surface runoff gathers and stagnates at the front end of the traditional anti-filtration gabion retaining wall.

[0017] The present invention has three-dimensional and multi-level prevention and control, meets the requirements of resilient disaster prevention, conforms to the needs of ecological civilization construction, and meets the needs of sustainable development, and can significantly improve my country's disaster prevention and mitigation level. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is a structural schematic diagram of a water collection manhole cover; Figure 4 This is a structural diagram of a reinforced gabion retaining wall; Figure 5 It is a structural schematic diagram of a water collection well; Figure 6 It is a structural schematic diagram of a siphon drain pipe; The main components in the figure are described as follows: 1. Slope; 2. Herbaceous plants; 3. Reinforced gabion retaining wall; 301. Reinforced frame; 302. Reinforced mesh; 303. Reinforced steel bars embedded in the bottom; 304. Pebbles; 4. Water collecting manhole cover; 401. Upper fixed water permeable cover; 402. Lower opening and closing water permeable cover; 403. Hinge; 404. Bolts; 405. Drain hole; 406. Rivets; 5. Anti-filter material bag; 6. Siphon drain pipe; 7. Flow meter; 8. Water guide trough wall; 9. Water guide trough; 10. Water collection well; 101. Vertical main reinforcement; 102. Impermeable concrete; 103. Stirrups; 104. Transverse main reinforcement; 11. Anchor cable. DETAILED DESCRIPTION

[0019] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0020] like Figure 1 and 2As shown, the rainfall-type landslide toughness prevention and control system includes herbaceous plants 2 planted on the top of the slope 1. Planting herbaceous plants on the surface of the slope can reduce rainwater infiltration and form surface runoff. The reinforcement of the root system of the herbaceous plants improves the stability of the slope. A water collection well 10 is arranged in the middle of the slope 1. The water collection well 10 is filled with a plurality of anti-filter material bags 5. A water guide 9 is arranged at the bottom of the slope 1. The water collection well 10 and the water guide 9 are connected by a plurality of siphon drainage pipes 6. A flow meter 7 is arranged on the outlet side of the plurality of siphon drainage pipes 6. When the flow rate detected by the flow meter 7 is lower than the preset threshold, an alarm is sounded, and the siphon drainage pipe 6 can be taken out for flushing and reuse. A water collection well cover 4 and a reinforced gabion retaining wall 3 are arranged on the top of the water collection well 10. The reinforced gabion retaining wall 3 is installed on the water collection well 10. The reinforced gabion retaining wall 3 is placed on the upper part of the water collection well cover 4. The reinforced gabion retaining wall 3 is used to guide rainwater from the upper part of the water collection well cover 4 to the water collection well 10.

[0021] like Figure 3 As shown, the water collection well cover 4 includes an upper fixed water permeable cover 401 and a lower opening and closing water permeable cover 402. The upper fixed water permeable cover 401 and the lower opening and closing water permeable cover 402 are both provided with drainage holes 405. The upper fixed water permeable cover 401 and the lower opening and closing water permeable cover 402 are connected by a plurality of hinges 403. The top of the upper fixed water permeable cover 401 is fixed to the upper side of the water collection well 10 by a plurality of well cover fixings. The bottom of the reinforced gabion retaining wall 3 is fixed to the upper fixed water permeable cover 401 by steel wire binding or welding. The well cover fixings are rivets 406 or expansion bolts. The upper fixed water permeable cover 401, the lower opening and closing water permeable cover 402 and the hinge 403 are connected by a plurality of bolts 404.

[0022] like Figure 4 As shown, the reinforced gabion retaining wall 3 includes a rectangular reinforced steel frame 301 and a steel mesh 302. The reinforced steel frame 301 and the steel mesh 302 form a rectangular reinforced steel cage. The rectangular reinforced steel cage is filled with pebbles 304. The size of the pebbles 304 is preferably MU30. A number of bottom-embedded steel bars 303 are fixed at the bottom of both sides of the reinforced steel frame 301. The bottom of the bottom-embedded steel bars 303 is embedded in the wall of the water collection well 10. The reinforced gabion retaining wall 3 is anchored into the water collection well 10 through the bottom-embedded steel bars 303 and anchored into the slope 1 with the anchor cable 11. The anchoring depth of the embedded steel bars needs to be obtained by anti-overturning calculation according to the engineering geological conditions on site. The bottom-embedded steel bars 303 and the rectangular reinforced steel frame 301 are preferably HRB500 steel bars. The steel mesh 302 is preferably a steel mesh. The rectangular reinforced steel frame 301 and the steel mesh 302 are connected by welding and wire tying.

[0023] It also includes a plurality of anchor cables 11, one end of each anchor cable 11 is fixed in the slope 1, and the other end is fixedly connected to the reinforced gabion retaining wall 3. Part of the surface water flows into the water collection well 10, and the reinforced gabion retaining wall 3 is anchored into the slope through the bottom implanted steel bars 303 and the anchor cables 11. The remaining surface water passes through the reinforced gabion retaining wall 3 to achieve the first energy dissipation and filtration and flows into the water collection well 10, and is filtered through the second filtration of the anti-filtration material bag 5 and collected in the water collection well.

[0024] like Figure 5 As shown, the water collection well 10 includes a water collection well wall reinforcement frame and impermeable concrete. The water collection well wall reinforcement frame is formed by connecting the vertical main reinforcement 101, the transverse main reinforcement 104 and the stirrup 104. The water collection well wall reinforcement frame is poured with impermeable concrete to form the water collection well wall. Specifically, the reinforced gabion retaining wall 3 can be fixed by implanting the bottom reinforcement 303 into the well wall of the water collection well 10; the bottom reinforcement 303 of the reinforced gabion retaining wall 3 can also be welded and fixed to the reinforcement skeleton of the water collection well 10, so that the reinforced gabion retaining wall 3 and the water collection well 10 are connected into a whole; the vertical main reinforcement 101 and the bottom reinforcement 303 can also be combined and designed into one. These two methods make the connection between the reinforced gabion retaining wall 3 and the water collection well 10 more secure.

[0025] like Figure 6 As shown, the siphon drain pipe 6 includes a water pipe body 601 and a stainless steel wire mesh 602. The stainless steel wire mesh 602 is filled in the water pipe body 601. The stainless steel wire mesh 602 is preferably a spherical or columnar steel wire mesh, similar to the steel wool balls commonly seen in life. Several stainless steel wire meshes 602 are connected by steel wires or ropes, which facilitates the removal of all the stainless steel wire meshes 602 from the siphon drain pipe 6. At the same time, the stainless steel wire mesh 602 can be conveniently inserted into the entire siphon drain pipe 6 by long objects such as wooden sticks. The siphon drain pipe 6 drains the surface water collected in the well to the water guide groove 9 and is monitored in real time by the flow meter 7. When the flow rate is lower than the design flow rate of the system, the filter bag 5 can be replaced, the stainless steel wire mesh 602 can be cleaned and put back into use, and the performance of the prevention and control system can be quickly restored. An impermeable concrete layer is arranged inside the water channel 9, and the impermeable concrete layer forms the water channel wall 8. The impermeable concrete layer can effectively increase the anti-slip force of the slope, which is beneficial to the stability of the slope and can prevent landslide disasters caused by surface water infiltration into the slope foot.

[0026] Working principle and process: the herbaceous plants 2 planted on the surface of the slope can reduce the infiltration of rainwater and form surface runoff. The reinforcement and soil consolidation of the roots of the herbaceous plants 2 improve the stability of the slope; part of the surface water flows into the water collection well 10, and the reinforced gabion retaining wall 3 is anchored into the slope through the bottom implanted steel bars 303 and anchor cables 11. The remaining surface water passes through the reinforced gabion retaining wall 3 to achieve the first energy dissipation and filtration and flows into the water collection well 10, and is filtered through the second filtration of the anti-filter material bag 5 and collected in the water collection well 10; the siphon drain pipe 6 drains the surface water collected in the water collection well 10 to the water channel 9 and is monitored in real time by the flow meter 7; when the flow rate is lower than the design flow rate of the system, the anti-filter material bag can be replaced, the stainless steel wire mesh in the filter siphon drain pipe can be cleaned and put back into use, and the performance of the prevention and control system can be quickly restored.

Claims

1. A rainfall-induced landslide toughness prevention and control system, characterized in that: It comprises herbaceous plants (2) planted on the top of a slope (1), a water collection well (10) is arranged in the middle of the slope (1), a plurality of filter material bags (5) are filled in the water collection well (10), a water guide trough (9) is arranged at the bottom of the slope (1), and the water collection well (10) and the water guide trough (9) are connected via a plurality of siphon drainage pipes (6); A water collection well cover (4) and a reinforced gabion retaining wall (3) are provided on the top of the water collection well (10); the reinforced gabion retaining wall (3) is installed on the water collection well (10).

2. The rainfall-induced landslide toughness prevention and control system according to claim 1 is characterized in that: The water collection well cover (4) comprises an upper fixed water permeable cover (401) and a lower opening and closing water permeable cover (402), both of which are provided with drainage holes (405), the upper fixed water permeable cover (401) and the lower opening and closing water permeable cover (402) are connected with the lower opening and closing water permeable cover (402) via a plurality of hinges (403), the top of the upper fixed water permeable cover (401) is fixed to the upper side of the water collection well (10) via a plurality of well cover fixing parts; the bottom of the reinforced gabion retaining wall (3) is fixed to the upper fixed water permeable cover (401).

3. The rainfall-induced landslide resilience prevention and control system according to claim 2 is characterized in that: The manhole cover fixing member is a rivet (406) or an expansion bolt.

4. The rainfall-induced landslide resilience prevention and control system according to claim 2 is characterized in that: The upper fixed water-permeable cover (401), the lower opening and closing water-permeable cover (402) and the hinge (403) are connected via a plurality of bolts (404).

5. The rainfall-induced landslide resilience prevention and control system according to claim 1 is characterized in that: The steel bar gabion retaining wall (3) comprises a rectangular steel bar frame (301) and a steel bar mesh (302), wherein the steel bar frame (301) and the steel bar mesh (302) form a rectangular steel bar cage, wherein pebbles (304) are filled in the rectangular steel bar cage, and a plurality of bottom-embedded steel bars (303) are fixed to the bottoms of both sides of the steel bar frame (301), wherein the bottoms of the bottom-embedded steel bars (303) are implanted into the wall of the water collection well (10).

6. The rainfall-induced landslide resilience prevention and control system according to claim 1 is characterized in that: The water collection well (10) comprises a water collection well wall reinforcement frame and impermeable concrete, wherein the water collection well wall reinforcement frame is formed by connecting vertical main reinforcements (101), transverse main reinforcements (104) and stirrups (104), and the water collection well wall reinforcement frame is cast with impermeable concrete to form the water collection well wall.

7. The rainfall-induced landslide resilience prevention and control system according to claim 1 is characterized in that: It also includes a plurality of anchor cables (11), one end of each anchor cable (11) being fixed in the slope (1) and the other end being fixedly connected to the reinforced gabion retaining wall (3).

8. The rainfall-induced landslide resilience prevention and control system according to claim 1 is characterized in that: A flow meter (7) is provided on the outlet side of each of the plurality of siphon drainage pipes (6).

9. The rainfall-induced landslide resilience prevention and control system according to claim 1, characterized in that: The siphon drainage pipe (6) comprises a water pipe body (601) and a stainless steel wire mesh (602), wherein the stainless steel wire mesh (602) is filled in the water pipe body (601).

10. The rainfall-induced landslide resilience prevention and control system according to claim 1, characterized in that: A water-impermeable concrete layer is provided inside the water channel (9), and the water-impermeable concrete layer forms a water channel wall (8).

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