A reverse electrode pile and slope protection system for anti-seepage reinforcement of gravel soil slopes

Abstract

The present invention belongs to the field of geotechnical engineering technology, and discloses an inverted electrode pile and slope protection system used for anti-seepage reinforcement of gravel soil slopes. The inverted electrode pile includes an electrode sleeve with multiple grooves on the surface, the outside of the electrode sleeve is wrapped with geotextile and fixed by a clamp, and the inner hole of the electrode sleeve is concrete grouted to form a micro concrete anti-slip pile; the inverted electrode pile can not only achieve the effect of slope anti-seepage and drainage, but also enhance the overall stability between the rock and soil body above the sliding surface, the sliding bed and the lower stable soil body; the inverted electrode pile can reverse the cathode and anode electrodes through a switch and an integrated circuit board, and form a slope protection system in combination with a drainage ditch and a drainage blind pipe, which can discharge water infiltrating into the interior of the slope over the largest area, and can use different gears of voltage to perform electroosmotic drainage according to the judgment of rainfall intensity and slope seepage amount, so as to achieve the effect of saving energy consumption and maintaining long-term stability of the slope structure.

Description

Technical Field

[0001] The present invention belongs to the field of geotechnical engineering technology, and in particular relates to an anti-seepage reinforcement reverse electrode pile and slope protection system for a slope with a gravel soil layer on the surface and a soft clay soil layer inside. Background Art

[0002] Slopes are the fundamental geological environment for engineering construction in mountainous and hilly areas. Ensuring slope safety is a fundamental requirement for human life and engineering activities. However, due to the complex geological conditions in which many projects are located, slope instability is a common occurrence, and landslides have become a major problem facing engineering construction in mountainous and hilly areas. Landslides in gravel-containing clayey soils are the most common type of landslide, making anti-seepage reinforcement of gravel soil slopes particularly important.

[0003] Chinese patent application "A method for landslide control using a chemical electroosmosis method combined with micro-anti-slide piles" (Application No. 201110175164.4) discloses a slope reinforcement method. This method involves placing metal electrodes in a borehole and injecting different chemical solutions. Under the action of a direct current electric field, electroosmosis and chemical reactions are generated. Concrete is then poured into the borehole to form micro-reinforced concrete anti-slide piles, which together improve slope stability. However, while this method only reinforces the slope, it fails to effectively prevent subsequent rainwater intrusion. This is particularly true for gravel landslides, which are prone to water seepage. After repeated rainwater erosion, it fails to provide long-term effective anti-instability measures. Chinese patent application "An electrode pile for slope protection and its use method" (Application No. 201910075521.6) discloses a protective electrode pile. By connecting multiple groups of cathode and anode piles, the electrode piles prevent water from entering deep into the soil, causing large-scale landslides, through electroosmosis, thereby enhancing the stability of the soil structure. However, the electrode pile is short and can only be used on small slopes. It cannot provide good drainage for large slopes and is not effective in enhancing the shear strength of the potential landslide failure surface. This method cannot effectively improve the overall stability between the upper rock and soil mass, the sliding bed and the electrode piles on the sliding surface of large slopes. In addition, the electroosmosis energy consumption is large, and no energy-saving methods are adopted. Summary of the Invention

[0004] The present invention aims to solve the technical problem of how to maintain the long-term stability of the structure of a gravel-containing clay slope, and provides a reverse electrode pile and slope protection system for anti-seepage reinforcement of a gravel soil slope. The reverse electrode pile can not only achieve the effect of slope anti-seepage and drainage, but also enhance the overall stability between the upper rock and soil body of the sliding surface, the sliding bed and the lower stable soil body. The slope protection system composed of the reverse electrode pile can discharge the moisture that infiltrates into the slope over the maximum area, and can use different gears of voltage to perform electroosmotic drainage based on the rainfall intensity and the amount of seepage on the slope, thereby achieving the effect of saving energy and maintaining the long-term stability of the slope structure.

[0005] In order to solve the above technical problems, the present invention is implemented through the following technical solutions:

[0006] An inverted electrode pile used for anti-seepage reinforcement of gravel soil slopes includes an electrode sleeve, a group of wire connection bolts are provided on the top of the electrode sleeve, and a plurality of grooves extending in the axial direction are evenly provided on the surface of the electrode sleeve; the outside of the electrode sleeve is wrapped with geotextile, and the geotextile is fixed to the electrode sleeve by a clamp, so that a smooth pore channel is formed between the grooves on the surface of the electrode sleeve and the geotextile; the inner hole of the electrode sleeve is concrete grouted to form a micro concrete anti-slip pile.

[0007] Furthermore, the groove is in the shape of a semi-cylinder.

[0008] Furthermore, an anti-corrosion layer is provided on the outer surface of the electrode sleeve.

[0009] A slope protection system for anti-seepage reinforcement of gravel soil slopes, comprising a plurality of the aforementioned inversion electrode piles, each of which can invert the cathode and anode electrodes via an integrated circuit board;

[0010] The reversal electrode piles are arranged in at least two rows on the slope, and the cathodes and anodes are staggered in rows when the circuit is connected; each reversal electrode pile is arranged perpendicular to the slope, with the bottom end of the reversal electrode pile passing through the potential sliding zone and the top exposed on the slope; drainage blind pipes are placed along the slope inside the slope below the reversal electrode piles;

[0011] Each group of the inverted electrode piles serving as cathodes and anodes are connected by wires and connected in parallel to a control box; the control box has a built-in control switch box and an integrated circuit board; the control switch box includes switch K0, switch K1, and switch K2; switch K0 is the main circuit switch, used to control whether all components are operating; switch K1 is the electrode manipulation switch, which controls the electroosmosis direction to be along the slope or against the slope; switch K2 is used to control the working voltage to be low voltage, normal voltage or high voltage; the integrated circuit board includes a single-chip microcomputer and an electrode drive module; the single-chip microcomputer is used to receive the switch direction signal of the switch K1, and control the electroosmosis direction through the electrode drive module; at the same time, the single-chip microcomputer is used to receive the gear signal of the switch K2, and control the voltage intensity through the electrode drive module.

[0012] Furthermore, the distance between two adjacent rows of the inversion electrode piles is 4-6 m, and the distance between adjacent inversion electrode piles in each row is 2-3 m.

[0013] Furthermore, a drainage ditch is dug at the top of the slope, and vertical drainage pipes are arranged at intervals at the bottom of the drainage ditch, and each of the vertical drainage pipes is connected to the drainage blind pipe.

[0014] Furthermore, a stainless steel wire mesh is placed at the pipe opening of the vertical drainage pipe connected to the intercepting ditch.

[0015] Furthermore, the vertical distance between the drainage blind pipe and the slope surface is 6-22m, and the elevation angle is 5-60°.

[0016] Furthermore, the drainage blind pipe is composed of a tangled inner pipe wall, a PVC plastic pipe, and a geotextile filter membrane from the inside out, and the upper pipe wall of the PVC plastic pipe is evenly provided with water-permeable holes.

[0017] Furthermore, the control box is equipped with a built-in sensor, which includes a temperature sensor and a digital tube, and both the temperature sensor and the digital tube are connected to the single-chip microcomputer; the temperature sensor is used to detect the temperature when the circuit is running, the single-chip microcomputer is used to collect the temperature signal of the temperature sensor and process it, and the digital tube is used to display the temperature value processed by the single-chip microcomputer.

[0018] The beneficial effects of the present invention are:

[0019] (1) The present invention provides a reverse electrode pile for anti-seepage reinforcement of gravel soil slopes. The electrode sleeve is combined with a micro-concrete anti-slip pile, which is inserted into the stable soil below the potential sliding surface. The resistance of the soil to the pile balances the thrust of the landslide. When the landslide slides down, it is resisted by the reverse electrode pile, causing the sliding body in front of the pile to reach a stable state. At the same time, the reverse electrode pile is combined with a DC electric field to conduct electroosmotic drainage, which improves the shear strength of the soft soil at the potential failure surface. This not only achieves the effect of slope anti-seepage and drainage, but also enhances the overall stability between the rock and soil above the sliding surface, the sliding bed, and the stable soil below.

[0020] (2) The present invention provides a reverse electrode pile for anti-seepage reinforcement of gravel soil slopes. The grooves on the surface of the electrode sleeve and the outer geotextile form a vertical corridor, which changes the situation where water seeps slowly through the pores of soil particles. The water accumulated in the soil near the cathode during the electroosmosis process seeps into the vertical corridor through horizontal seepage, and then quickly flows into the drainage blind pipe at the bottom of the reverse electrode pile, shortening the seepage path, improving drainage efficiency, and effectively collecting the water accumulated in the soil near the reverse electrode pile; it solves the problem that the traditional reverse electrode pile electroosmosis drainage slope protection method cannot quickly and well collect water and remove it from the slope. In addition, the micro-concrete anti-slip pile formed by grouting in the electrode sleeve effectively enhances the shear and bending resistance of the reverse electrode pile, thereby significantly enhancing the anti-slip ability of the slope.

[0021] (III) The present invention provides a slope protection system for anti-seepage reinforcement of gravel soil slopes. The reverse electrode piles of the present invention are reversed in cathode and anode via an integrated circuit board, effectively utilizing electroosmosis to collect moisture within the landslide into the soil near the two rows of reverse electrode piles near the top and bottom of the slope. Combined with underground drainage blind pipes, the water that has infiltrated into the slope is discharged over the largest area. Electroosmosis drainage can also be performed using different voltage levels based on rainfall intensity and slope seepage, thereby saving energy and maintaining long-term stability of the slope structure. In addition, by providing a temperature sensor and a digital tube in the circuit, the circuit temperature can be detected at any time to ensure the safety and reliability of the circuit operation.

[0022] In summary, the slope protection system of the present invention has significant effects on slope anti-seepage drainage and reinforcement. Compared with traditional electroosmosis drainage, it saves energy, has obvious economic benefits, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the inverted electrode pile provided in the embodiment;

[0024] Figure 2 is a schematic structural diagram of an electrode sleeve in a reverse electrode pile provided in an embodiment;

[0025] Figure 3 This is a schematic structural diagram of a clamp in a reverse electrode pile provided in an embodiment;

[0026] Figure 4 It is a schematic diagram of the longitudinal cross-sectional structure of the arrangement of the reverse electrode piles, intercepting ditches, vertical drainage pipes, and drainage blind pipes in the slope protection system provided in the embodiment;

[0027] Figure 5 This is a top view of the structure of the arrangement of reverse electrode piles, intercepting ditches, vertical drainage pipes, and drainage blind pipes in the slope protection system provided in the embodiment;

[0028] Figure 6 Schematic diagram of the axial and transverse cross-section of the drainage blind pipe in the slope protection system provided in the embodiment;

[0029] Figure 7 This is a schematic diagram of the structure of the distribution of permeable holes on the drainage blind pipe in the slope protection system provided in the embodiment;

[0030] Figure 8 This is a schematic diagram of the connection between the inverted electrode pile, the control box, and the power supply in the slope protection system provided in the embodiment;

[0031] Figure 9 It is a schematic diagram of the connection structure of circuit elements in the slope protection system provided in the embodiment.

[0032] In the above figure: 1. Inverted electrode pile, 101. Electrode sleeve, 102. Groove, 103. Wire connecting bolt, 104. Geotextile, 105. Clamp, 106. Micro concrete anti-slip pile; 2. Intercepting ditch; 3. Vertical drainage pipe; 4. Drainage blind pipe, 401. Inner pipe wall with messy wire pattern, 402. PVC plastic pipe, 403. Geotextile filter membrane, 404. Water permeable hole; 5. Control box, 501. Control switch box, 502. Sensor, 5021. Temperature sensor, 5022. Digital tube, 503. Integrated circuit board, 5031. Single chip microcomputer, 5032. Electrode drive module, 5033. Resistance wire; 6. Power supply. DETAILED DESCRIPTION

[0033] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0034] like Figure 1 As shown, this embodiment discloses a reverse electrode pile 1 used for anti-seepage reinforcement of gravel soil slopes. Each reverse electrode pile 1 includes an electrode sleeve 101 made of metal. The electrode sleeve 101 is cut into different lengths within the range of 5-20m to meet the requirements of different slope sites. The diameter of the electrode sleeve 101 is 220-270mm and the thickness is about 15mm.

[0035] like Figure 2 As shown, the surface of the electrode sleeve 101 is machined using a semi-automatic punching machine to form multiple axially extending grooves 102. Each groove 102 is semi-cylindrical in shape, and multiple grooves 102 are evenly spaced around the circumference of the electrode sleeve 101. The outer surface of the electrode sleeve 101 is electroplated with a 0.1-0.15mm thick Cu-Sn alloy coating to improve the corrosion resistance of the electrode sleeve 1. A wire connection bolt 103 is installed on each side of the top of the electrode sleeve 101 for connecting wires, respectively, to enable the inverted electrode pile 1 to function as an anode or cathode.

[0036] The outer surface of the electrode sleeve 11 is tightly and evenly wrapped with a geotextile 104. The geotextile 104 is preferably a staple needle-punched geotextile, which has the characteristics of anti-aging, acid and alkali resistance, wear resistance, good toughness, and simple construction, effectively improving the protection of the electrode sleeve 101. In addition, the geotextile 104 is tightly fixed to the electrode sleeve 11 by a stainless steel clamp 105. Figure 3 As shown, the clamp 105 consists of two parts: a textured stainless steel sheet and a bolt. The thickness of the textured stainless steel sheet is about 2 mm. The diameter of the clamp can be controlled by twisting the bolt. The diameter of the clamps of different specifications is between 220-270 mm to ensure that the geotextile 104 is tightly attached to the outer surface of the electrode sleeve 101 of different specifications, thereby ensuring that the pore channel between the groove 102 on the outer surface of the electrode sleeve 101 and the geotextile 104 is unobstructed.

[0037] After pre-drilling the slope, the electrode sleeve 11 wrapped with geotextile 104 is placed in the hole, and then concrete grouting is performed in the hole to form micro concrete anti-slip piles 106. The electrode sleeve 101 and the micro concrete anti-slip piles 106 together constitute the reverse electrode pile 1.

[0038] The reversing electrode piles 1 can reverse the cathode and anode electrodes via an integrated circuit board 503. A pair of reversing electrode piles 1 function as the cathode and anode, forming a group. A control box 5 and the reversing electrode piles 1 are connected by wires and powered by a power supply 6, forming a slope protection system for anti-seepage reinforcement of gravel soil slopes. Under the action of the electric field, positively charged water and cations in the soft soil of the potential sliding surface flow toward the cathode, while negatively charged anions flow toward the anode, resulting in electroosmosis and a chemical reaction. Water accumulated in the soil near the cathode is collected by an underground drainage blind pipe 4 and discharged out of the slope, thereby improving the shear strength and stability of the potential sliding surface.

[0039] like Figure 4 and Figure 5 As shown, the reverse electrode pile 1 is driven into the slope perpendicular to the slope surface and crosses the potential sliding zone by three to five meters. This can increase the range of the electro-osmotic soil and enhance the electro-osmosis effect. In order to facilitate the connection of the wires, the reverse electrode pile 1 is generally exposed 0.1m from the slope surface. When installing the reverse electrode pile 1, a drilling machine is first used to drill a hole perpendicular to the slope surface. The borehole diameter is between 250-300mm, and the drilling depth is determined according to the potential sliding zone position and trend results of the geological survey. For most slopes, the drilling depth is between 5-20m; then concrete grouting is performed in the hole to form a micro-concrete anti-slip pile 106. The electrode sleeve 101 and the micro-concrete anti-slip pile 106 together constitute the reverse electrode pile 1.

[0040] At least two rows of reversal electrode piles 1 are arranged on the slope, and each row of reversal electrode piles 1 is distributed in a straight line. The spacing between rows of reversal electrode piles 1 is 4-6m, and the spacing between adjacent reversal electrode piles in each row is 2-3m. When the reversal electrode piles 1 are connected to the circuit, the cathodes and anodes are staggered in rows. For small slopes, two rows of reversal electrode piles 1 are generally set, with one row near the top and bottom of the slope; for large slopes, three or more rows of reversal electrode piles 1 can be set. The position of the reversal electrode piles 1 can be slightly adjusted according to the environment and soil conditions. The reversal electrode piles 1 of corresponding specifications, as well as the spacing and arrangement, are placed according to the depth and trend of the potential sliding zone. No detailed description is given, and all are within the scope of protection of the present invention.

[0041] A trapezoidal intercepting ditch 2 is excavated at the top of the slope. It is 0.4m deep, 1.0m wide at the top, and 0.6m wide at the bottom, with its sides inclined at a 63° angle to the horizontal. A 50mm-thick concrete layer is laid on the sides and bottom of the ditch to prevent rainwater from eroding the soil and facilitate regular cleaning of debris and mud. PVC vertical drain pipes 3 are installed at the bottom of the ditch every 3-4m. Stainless steel mesh is placed at the pipe ends to filter out debris.

[0042] Drill a hole along the slope inside the slide bed and place a full-length drainage blind pipe 4, which is connected to the vertical drainage pipe 3. The drainage blind pipe 4 is located below the bottom end of the inverted electrode pile 1. The vertical distance between the drainage blind pipe 4 and the slope surface is 6-22m, and the elevation angle is between 5° and 60°. The specific length, elevation angle, and length of the vertical drainage pipe 3 connected to it are determined by the slope length and slope angle. Figure 6 As shown, the drainage blind pipe 4 is composed of three parts: a chaotic inner pipe wall 401, a PVC plastic pipe 402, and a geofilter membrane 403. The chaotic inner pipe wall 401 is made of plastic filaments extruded by an extruder and shuffled when it is fixed and formed. Its porosity is 70-80%, the diameter of the plastic filament is 1mm-2mm, the thickness of the chaotic inner pipe wall 401 is between 30-35mm, and the pore size is between 130-150mm. The PVC plastic pipe 402 is placed outside the chaotic inner pipe wall 401 to ensure close contact with the chaotic inner pipe wall 401. Figure 7 As shown, a number of 4mm diameter permeable holes 404 are evenly distributed along the upper third to half of the PVC plastic tube 402. This allows water collected near the cathode to seep through the vertical channel on the surface of the inverted electrode pile 1 and the soil above the drainage blind pipe 4. When water seeps down to the surface of the drainage blind pipe 4, it can flow into the drainage blind pipe 4 through the permeable holes 404, assisting the drainage blind pipe 4 in efficiently and quickly collecting water. The geofilter 403 is made by tightly wrapping a staple needle-punched geotextile around the outer surface of the PVC plastic tube 402, then spraying it with synthetic fiber filaments. Both the PVC plastic tube 402 and the vertical drainage pipe 3 have an inner diameter of 200mm.

[0043] During rainfall, the intercepting ditch 2 at the top of the slope intercepts rainwater flowing downhill from the top of the slope. The water then flows through the vertical drainage pipe 3 into the drainage blind pipe 4, flowing downhill from the drainage blind pipe 4 to the bottom of the slope and out of the slope. A DC electric field is connected to the reverse electrode pile 1 for electroosmotic drainage, causing water that has seeped into the landslide to accumulate in the soil near the cathode at the bottom of the slope. From there, the water seeps down through the vertical corridor on the surface of the reverse electrode pile 1 and the soil above the drainage blind pipe 4, and finally flows downhill out of the slope. After a period of rainfall cessation, the electroosmotic drainage direction is reversed, causing water to gather near the reverse electrode pile 1 at the top of the slope. The water then seeps down through the corridor on the surface of the reverse electrode pile 1 and the soil above the drainage blind pipe 4, and finally flows downhill out of the slope.

[0044] like Figure 8 As shown, each set of reverse electrode piles 1, serving as cathodes and anodes, are connected via wires and then connected in parallel to a control box 5. Each set of reverse electrode piles 1 is connected to an independent operating circuit. The control box 5 can be buried in the middle of the upper slope. The control box 5 comprises a rectangular, corrosion-resistant metal casing housing a control switch box 501, a sensor 502, and an integrated circuit board 503.

[0045] The control switch box 501 includes three switches: K0, K1, and K2. K0 is the master circuit switch, controlling the operation of all components. K1 is the electrode control switch, controlling the direction of electroosmosis. Pressing it once shifts the electroosmosis direction forward, while pressing it twice reverses the direction of the cathode and anode electrodes, causing the electroosmosis to proceed in the reverse direction. K2 controls the operating voltage. Pressing it once shifts the voltage to low, pressing it twice shifts the voltage to normal, and pressing it three times shifts the voltage to high.

[0046] Sensor 502 includes a temperature sensor 5021 and a digital tube 5022. The temperature sensor detects the operating temperature of the circuit, and the digital tube displays the temperature value. After turning on switch K0, if the temperature value displayed on the digital tube exceeds the set value or the temperature value cannot be displayed, the main switch K0 must be turned off immediately to check for faults in the circuit components to ensure safe operation.

[0047] Integrated circuit board 503 includes a single-chip microcomputer 5031, an electrode driver module 5032, and a resistor 5033. Single-chip microcomputer 5031 receives the switch direction signal from switch K1 and controls the electroosmosis direction via the electrode driver module 5032. Simultaneously, single-chip microcomputer 5032 receives the shift position signal from switch K2 and controls the voltage level via the driver module. The operating voltage and current are determined based on the slope soil properties, moisture content, and rainfall intensity. For example, integrated circuit board 503 can be used to control the operating voltage in three levels: 120V, 180V, and 240V. This reduces the impact of long-term electroosmosis on soil quality and avoids unnecessary energy consumption.

[0048] like Figure 9 As shown, power supply 6 is connected to switch K0 via a wire, then splits into two branches, connected to switches K1 and K2, respectively. Both switches K1 and K2 are connected to microcontroller 5031. Microcontroller 5031 is connected to at least one inverting electrode pile 1, acting as a cathode and one as an anode, via electrode driver module 5032. Inverting electrode pile 1 is then connected to power supply 6, forming a loop. Temperature sensor 5021 and digital display 5022 are both connected to microcontroller 5031. Microcontroller 5031 collects the temperature signal from temperature sensor 5021, converts the temperature into a binary code within a corresponding range, and transmits the resulting digital signal to digital display 5022, which displays the temperature value. A resistor 5033 is connected in parallel with microcontroller 5031 to protect its operation.

[0049] When the circuit is operating, power supply 6 is connected, and switch K0 is closed to complete the circuit. Since motor driver module 5032 contains two relays, controlled by the two I / O ports of microcontroller 503, a signal from switch K1 is received by microcontroller 5031, causing one of the I / O ports to be low. This level difference generates current in the corresponding direction. Pressing switch K1 once causes microcontroller 5031 to receive the positive switching signal. After processing, the sinusoidal signal is converted into a PWM (pulse width modulation) signal for output. Electrode driver module 5032 converts the PWM signal into a voltage signal. Current now flows from end a to end b, indicating a downslope electroosmosis direction. This means that water within the slope flows from reverse electrode pile 1, the anode at the top of the slope, to reverse electrode pile 1, the cathode at the bottom, and then drains through drainage blind pipe 4. Pressing K1 twice causes current to flow from end b to end a, indicating a downslope electroosmosis direction. This means that water within the slope flows from reverse electrode pile 1, the anode at the bottom, to reverse electrode pile 1, the cathode at the top, and then drains through drainage blind pipe 4. When switch K2 is pressed, the microcontroller 5031 receives the gear signal. After filtering and processing by the microcontroller 5031, the corresponding PWM wave is output, thereby causing the reversing electrode pile 1 to obtain the corresponding voltage intensity, directly controlling the electroosmosis operation of the reversing electrode pile 1. Pressing K2 three times in sequence will respectively obtain the low-range, medium-range, and high-range operating voltages. The operating voltage gear value can be adjusted according to the slope soil properties, moisture content, and rainfall intensity. In addition, the resistor 5033 connected in parallel with the microcontroller 5031 is used to protect its safety. During circuit operation, the temperature sensor 5021 detects the temperature of the circuit during operation. The microcontroller 5031 collects the signal from the temperature sensor 5021, processes the signal, and displays the temperature value on the digital tube 5022. If the temperature is too high or cannot be displayed, the circuit operation should be terminated immediately for safety testing.

[0050] It is worth noting that when it rains, turn on the main switch K0 to connect the power supply 6, and then press the switch K1 once, and the electroosmosis starts to proceed along the slope, that is, from the anode at the top of the slope to the cathode at the bottom of the slope; adjust the switch K2 to select the appropriate voltage gear according to the rainfall intensity and the degree of water seepage on the slope. After the rainfall stops for a period of time, the anode temperature continues to rise, and then press K1 twice to switch the electroosmosis direction and conduct electroosmosis, thereby enhancing the electroosmosis drainage effect of the landslide body, and thereby enhancing the overall stability between the landslide body and the sliding bed in the upper part of the potential sliding zone.

[0051] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms of specific changes without departing from the scope of protection of the invention and the claims. These all fall within the scope of protection of the present invention.

Claims

1. A slope protection system for anti-seepage reinforcement of gravel soil slopes, characterized in that: The invention comprises a plurality of inverted electrode piles, each of which comprises an electrode sleeve, a group of wire connection bolts being provided on the top of the electrode sleeve, a plurality of grooves extending in the axial direction being uniformly provided on the surface of the electrode sleeve, and the shape of the grooves being semi-cylindrical; an anti-corrosion layer being provided on the outer surface of the electrode sleeve; a geotextile being wrapped around the outside of the electrode sleeve, and the geotextile being fixed to the electrode sleeve by a clamp, so that a smooth pore channel is formed between the grooves on the surface of the electrode sleeve and the geotextile; the inner hole of the electrode sleeve is grouted with concrete to form a micro-concrete anti-slip pile; Each of the reversing electrode piles can reverse the cathode and anode electrodes through an integrated circuit board; The reversal electrode piles are arranged in at least two rows on the slope, and the cathodes and anodes are staggered in rows when the circuit is connected; each reversal electrode pile is arranged perpendicular to the slope, with the bottom end of the reversal electrode pile passing through the potential sliding zone and the top exposed on the slope; drainage blind pipes are placed along the slope inside the slope below the reversal electrode piles; Each group of the inverted electrode piles serving as cathodes and anodes are connected by wires and connected in parallel to a control box; the control box has a built-in control switch box and an integrated circuit board; the control switch box includes switch K0, switch K1, and switch K2; switch K0 is the main circuit switch, used to control whether all components are operating; switch K1 is the electrode manipulation switch, which controls the electroosmosis direction to be along the slope or against the slope; switch K2 is used to control the working voltage to be low voltage, normal voltage or high voltage; the integrated circuit board includes a single-chip microcomputer and an electrode drive module; the single-chip microcomputer is used to receive the switch direction signal of the switch K1, and control the electroosmosis direction through the electrode drive module; at the same time, the single-chip microcomputer is used to receive the gear signal of the switch K2, and control the voltage intensity through the electrode drive module.

2. A slope protection system for anti-seepage reinforcement of gravel soil slope according to claim 1, characterized in that: The distance between two adjacent rows of the inversion electrode piles is 4-6m, and the distance between adjacent inversion electrode piles in each row is 2-3m.

3. The slope protection system for anti-seepage reinforcement of gravel soil slope according to claim 1, characterized in that: A drainage ditch is dug at the top of the slope, and vertical drainage pipes are arranged at intervals at the bottom of the drainage ditch. Each of the vertical drainage pipes is connected to the drainage blind pipe.

4. The slope protection system for anti-seepage reinforcement of gravel soil slope according to claim 3, characterized in that: A stainless steel wire mesh is placed at the pipe opening of the vertical drainage pipe connected to the intercepting ditch.

5. The slope protection system for anti-seepage reinforcement of gravel soil slope according to claim 1, characterized in that: The vertical distance between the drainage blind pipe and the slope surface is 6-22m, and the elevation angle is 5-60°.

6. The slope protection system for anti-seepage reinforcement of gravel soil slope according to claim 1, characterized in that: The drainage blind pipe is composed of a tangled inner pipe wall, a PVC plastic pipe, and a geotextile filter membrane from the inside out, and the upper pipe wall of the PVC plastic pipe is evenly provided with water-permeable holes.

7. The slope protection system for anti-seepage reinforcement of gravel soil slope according to claim 1, characterized in that: The control box is equipped with a built-in sensor, which includes a temperature sensor and a digital tube. Both the temperature sensor and the digital tube are connected to the single-chip microcomputer. The temperature sensor is used to detect the temperature when the circuit is running, the single-chip microcomputer is used to collect and process the temperature signal of the temperature sensor, and the digital tube is used to display the temperature value processed by the single-chip microcomputer.

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