A highland complex-based slope supporting structure and a supporting method

Abstract

The application discloses a kind of based on plateau complex slope support structure and supporting method, belong to slope support technical field, slope includes: slope body, support structure is arranged on slope body, support structure includes: inverse filter layer, inverse filter layer is laid on the slope surface of slope body, for preventing soil loss in slope body, inverse filter layer is buried with water-collecting pipe in, for discharging seepage;And protective layer, protective layer is covered on inverse filter layer, for protecting inverse filter layer, protective layer is connected with inverse filter layer by connecting piece, protective layer extends to the top of slope body to be connected with the anchor trench opened in the top of slope body.A kind of based on plateau complex slope support method, slope support method is applicable to as above-mentioned slope support structure.This application can be made inverse filter layer with different materials flexibly according to the complex terrain of plateau slope, solve the problem that single slope support structure in prior art cannot be applied to plateau complex slope.

Description

Technical Field

[0001] This invention belongs to the field of slope protection technology, and relates to a slope protection structure and method based on the complex slopes of plateaus. Background Technology

[0002] To stabilize slopes, prevent soil or rock slippage or collapse, and protect slopes from the effects of rainwater, weathering, and other factors, slope protection is necessary. Slope protection is suitable for various natural slopes (such as complex slopes in plateaus) and artificial slopes, and is particularly common in soil and rock slopes.

[0003] Slope protection structures come in various forms, with the following commonly used types: 1) Anchor bolt / cable anchoring: Steel rods or strands are drilled and grouted for anchoring, connecting unstable surface soil to deep, stable rock mass, providing anti-sliding force; often used in conjunction with shotcrete and lattice beams, suitable for rock or hard soil slopes. 2) Shotcrete and anchor support: Steel mesh or wire mesh is first installed, then shotcrete / mortar is sprayed to form an integral protective layer, providing both reinforcement and weathering protection; particularly suitable for slopes with fractured rock layers and severe weathering. 3) Retaining walls: Resisting lateral soil pressure with the wall's own weight or internal tie force; the former is suitable for low slopes, while the latter is suitable for steep artificial slopes. 4) Flexible protective netting: High-strength steel wire rope netting is used to cover the slope surface, limiting rockfall and intercepting falling rocks; quick to install and suitable for complex terrain. 5) Plant protection: Planting grasses and shrubs enhances stability through their root systems' reinforcement, water absorption and pressure reduction, and interception and erosion mitigation mechanisms; it combines soil and water conservation with landscaping, making it suitable for gentle slopes and ecologically sensitive areas. 6) Grid beam + anchor bolt combined support: Reinforced concrete grid beams are laid out in a grid pattern on the slope surface to divide the soil into zones and constrain lateral deformation; then, anchor bolts transfer the load to the deep stable layer; it is highly adaptable, has mature construction methods, and is widely used in high slope treatment.

[0004] In existing technologies, shotcrete is often used in the initial stage of rock slopes, combined with anchor bolts / cable anchors, to seal cracks and prevent weathering and erosion. Soil slopes are often protected with vegetation.

[0005] Due to the complex terrain, my country's plateau slopes include both soil and rock slopes, and the looseness and moisture content of the soil vary in different sections.

[0006] Therefore, it is necessary to provide a universal slope support structure and method for complex plateau slopes. Summary of the Invention

[0007] To at least address the problem that existing single slope support structures are unsuitable for complex slopes in high-altitude regions, the present invention provides the following technical solution: a slope support structure for complex high-altitude regions, wherein the slope comprises: a slope body, on which a support structure is provided, the support structure comprising: A filter layer, laid on the slope surface of the slope body, is used to prevent soil erosion within the slope body. A water collection pipe is embedded within the filter layer to drain seepage. A protective layer is applied over the filter layer to protect it. The protective layer is connected to the filter layer via connectors and extends to the top of the slope body to connect with an anchoring trench at the top of the slope body.

[0008] Optionally, in the above-mentioned slope protection structure based on the complex plateau, the filter layer is any one of gravel, concrete, cement slurry, planted grass, or shrubs.

[0009] Optionally, in the above-mentioned slope support structure based on the complex plateau, when the filter layer is made of concrete or cement slurry, the support structure further includes: an intelligent temperature control device for adjusting the temperature difference between the surface and the interior of the filter layer, the intelligent temperature control device including: a temperature sensor, a cooling water circulation pipe, a cold water tank, a first liquid pump, a hot water circulation pipe, a hot water tank, a second liquid pump, a heat exchanger, a heater, and a PLC controller; Both the temperature sensor and the hot water circulation pipe are embedded in the filter layer. The heater is connected to the hot water tank and is used to heat the heat medium in the hot water tank; The temperature sensor, the first liquid pump, the second liquid pump, and the heater are all connected to the PLC controller; The cold water tank, the first liquid pump, and the cold water side of the heat exchanger are connected through the cooling water circulation pipe to form a cooling water circulation loop; The hot water tank, the second liquid pump, and the hot water side of the heat exchanger are connected through the hot water circulation pipe to form a hot water circulation loop; The refrigerant in the cooling water circulation loop flows in the opposite direction to the heat medium in the hot water circulation loop.

[0010] Optionally, in the above-mentioned slope protection structure based on the complex plateau, the protective layer is any one of wire mesh, geotextile, and thermal insulation film.

[0011] Optionally, in the above-mentioned slope protection structure based on the complex plateau, when the filter layer is made of sand and gravel, the protection structure further includes: a compacted layer, a reinforcing layer, and a flexible mesh. The compacted layer is pressed onto the protective layer, which is positioned opposite to the filter layer, to prevent the filter layer from deforming. The reinforcement layer is laid on the compacted layer and is used to reinforce the slope body; The flexible netting is attached to the reinforcing layer to prevent it from falling off.

[0012] Optionally, in the above-mentioned slope protection structure based on the complex conditions of plateaus, the thickness of the reinforcement layer is 20-40 cm, and the reinforcement layer is made of rubble; and The compacted layer is made of gravel.

[0013] This invention also provides the following technical solution: a slope support method for complex plateau slopes, the slope support method being applicable to the complex plateau slope support structures described above, the slope support method comprising the following steps: S1. Use instruments to measure the soil quality and moisture content of the slope body, and adjust the slope of the slope body according to the design requirements. S2. After the slope body is repaired, inspection and acceptance shall be carried out. S3. Lay a filter layer from bottom to top along the slope surface of the slope body, and bury the water collection pipe in the filter layer at the same time. S4. Cover the surface of the filter layer from bottom to top with a protective layer, up to the anchoring trench at the top of the slope body, and fill the anchoring trench with earth.

[0014] S5. Use connectors to fix the protective layer to the filter layer.

[0015] Optionally, in the above-described slope protection method based on the complex conditions of plateaus, the slope protection method further includes the following steps: S6. Press the compacted layer onto the protective layer, which is opposite to the position of the filter layer, from bottom to top; S7. Lay the reinforcement layer on the compacted layer from bottom to top; S8. Hang the flexible net on the reinforcement layer.

[0016] Optionally, in the above-mentioned slope protection method based on the complex conditions of plateaus, in step S1), when the slope is a rock slope or a soil slope with loose soil and a water content of more than 70%, the slope of the slope body is 6-15°; and When the slope is a soil slope with dense soil and a moisture content of 60-70%, the slope of the slope body is 30-60°.

[0017] Optionally, in the above-mentioned slope protection method based on the complex plateau, when the filter layer is made of concrete or cement slurry, an intelligent temperature control device is installed on the filter layer.

[0018] The beneficial effects of the technical solution provided by the embodiments of the present invention are as follows: This application prevents soil loss from the slope body by setting a filter layer, protects the filter layer by setting a protective layer, drains the seepage in the filter layer through a water collection pipe, and ensures that the protective layer does not detach from the slope surface by anchoring trenches located at the top of the slope body. This application can flexibly use different materials to make the filter layer according to the complex terrain of the plateau slope, solving the problem that the single slope support structure in the existing technology cannot be applied to the complex slopes of the plateau. Attached Figure Description

[0019] Figure 1 A schematic diagram of a specific structure for a complex slope support structure in a high-altitude region, provided as an embodiment of the present invention; Figure 2 This invention provides another specific structural schematic diagram of a slope support structure based on the complex conditions of a plateau. Figure 3 for Figure 1 A schematic diagram of the specific structure of the intelligent temperature control device; In the diagram: 1. Slope body; 2. Filter layer; 3. Protective layer; 4. Intelligent temperature control device; 41. Temperature sensor; 42. Cooling water circulation pipe; 43. Cold water tank; 44. First liquid pump; 45. Hot water circulation pipe; 46. Hot water tank; 47. Second liquid pump; 48. Heat exchanger; 49. PLC controller; 50. Heater; 5. Compacted layer; 6. Reinforcement layer; 7. Flexible mesh; 8. Connector. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0021] In the description of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected," "linked," and "set up" used in this invention should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0022] Please see Figure 1-3 The present invention provides the following technical solution: a slope support structure based on the complex conditions of a plateau, the slope comprising: a slope body 1, on which a support structure is provided. (Refer to...) Figure 1 As shown, the support structure includes a filter layer 2 and a protective layer 3. The filter layer 2 is laid on the slope surface of the slope body 1. This embodiment does not limit the material used for the filter layer 2, as long as it prevents seepage water from carrying away soil from the slope body 1. A water collection pipe (not shown in the figure) is embedded within the filter layer 2 to drain seepage. The protective layer 3 is laid on top of the filter layer 2 to protect it. The protective layer 3 is connected to the filter layer 2 via connectors 8, ensuring a tight connection between them. Specifically, the connectors 8 can be either anchor bolts or U-shaped nails. The protective layer 3 extends to the top of the slope body 1 to connect with the anchoring trench at the top of the slope body 1, ensuring that the protective layer 3 does not detach from the slope surface. During on-site construction, after laying the protective layer 3, the anchoring trench can be filled with earth or other materials.

[0023] This application uses a filter layer 2 to prevent soil erosion from the slope body 1, and a protective layer 3 to protect the filter layer 2. The filter layer 2 can be made of any one of the following: gravel, concrete, cement grout, planted grass, or shrubs. This application can flexibly use different materials to construct the filter layer 2, depending on the complex terrain of the plateau slope, such as soil slopes and rock slopes, and considering the varying degrees of soil looseness and moisture content in different sections. This solves the problem that existing single slope support structures are not suitable for complex plateau slopes. For soil slopes, the filter layer 2 can be made of any one of gravel, planted grass, or shrubs, with gravel being preferred to shorten the construction period. For rock slopes, the filter layer 2 can be made of concrete or cement grout, while the protective layer 3 is preferably made of an insulation film. This reduces cracking of the concrete due to large temperature differences between the inside and outside in the cold mountain environment. Furthermore, when minor cracks appear in the filter layer 2, embedding asphalt-impregnated hemp fibers into the cracks can significantly improve the crack resistance of the concrete.

[0024] It should be noted that concrete or cement slurry can be sprayed or sprayed using commercially available shotcrete equipment. Grass planting utilizes hydroseeding technology, which, simply put, involves spraying a composite substrate containing soil, fiber, seeds, and nutrients to quickly create a stable layer suitable for vegetation growth on rock or hard soil surfaces. Suitable grass varieties include drought-resistant and barren-tolerant species such as Bermuda grass, Bahia grass, Styrax chinensis, and Lysimachia christinae. Mixing grasses with shrubs results in a higher survival rate.

[0025] Taking the use of concrete to create the filter layer 2 as an example, before spraying concrete, the slope surface (and the surface to be sprayed) is cleaned and moistened with water. During spraying, the nozzle is perpendicular to the surface to be sprayed, with a distance between 0.6 and 1.0. The spraying sequence is from bottom to top, in layers, with each layer controlled to a thickness of 30-50 mm. The next layer is sprayed after the previous layer of concrete has fully set (no more than 2 hours). During the spraying process, the spraying pressure is controlled at 0.12-0.15 MPa to ensure that the concrete surface is flat, without cracks, peeling, or other defects. The allowable deviation for surface flatness is ±20 mm. After the initial setting of the next layer of concrete, side formwork (i.e., formwork support) needs to be installed on its outer side. Positioning bolts are installed on the slope body 1 near the bottom of the side formwork to prevent the side formwork from shifting downwards. Pressure bars are installed above the side formwork to prevent it from floating upwards. Two hours after the final setting of the sprayed concrete, water curing is carried out for at least 7 days, keeping the concrete surface moist. When the temperature is below 5℃, use plastic film and insulating blankets to cover the concrete for curing to prevent it from freezing. Once the concrete strength meets the standard, such as above 1.2MPa, the side formwork can be removed.

[0026] When the filter layer 2 is made of concrete or cement grout, in order to better solve the problem of cracking of concrete or cement grout due to the cold mountain environment, in this embodiment, the support structure also includes: an intelligent temperature control device 4 for adjusting the temperature difference between the surface and interior of the filter layer 2. Specifically, refer to... Figure 3 As shown, the intelligent temperature control device 4 includes: a temperature sensor 41, a cooling water circulation pipe 42, a cold water tank 43, a first liquid pump 44, a hot water circulation pipe 45, a hot water tank 46, a second liquid pump 47, a heat exchanger 48, a PLC controller 49, and a heater 50. The temperature sensor 41 and the hot water circulation pipe 45 are both embedded within the filter layer 2. The heater 50 is connected to the hot water tank 46 and is used to heat the heat transfer medium within the hot water tank 46. The temperature sensor 41, the first liquid pump 44, the second liquid pump 47, and the heater 50 are all connected to the PLC controller 49. The cold water side of the cold water tank 43, the first liquid pump 44, and the heat exchanger 48 are connected through the cooling water circulation pipe 42 to form a cooling water circulation loop. The hot water side of the hot water tank 43, the second liquid pump 47, and the heat exchanger 48 are connected through the hot water circulation pipe 45 to form a hot water circulation loop. The refrigerant and the heat transfer medium exchange heat at the heat exchanger 48. The refrigerant in the cooling water circulation loop flows in the opposite direction to the heat medium in the hot water circulation loop, which can improve the heat exchange effect between the refrigerant and the heat medium.

[0027] Taking concrete as an example, the working process and principle of the intelligent temperature control device 4 are briefly introduced below: Temperature sensor 41 continuously monitors temperature changes within the concrete and transmits the data to PLC controller 49. After internal analysis, if PLC controller 49 determines that the concrete temperature is too low, it sends a command to heater 50 to heat the heat medium in hot water tank 46. Simultaneously, it activates second liquid pump 47. Driven by second liquid pump 47, the heat medium circulates along hot water circulation pipe 45, heating the concrete until the required temperature is reached. If PLC controller 49 determines that the concrete temperature is too high, it sends a command to first liquid pump 44. Driven by first liquid pump 44, coolant circulates along cooling water circulation pipe 42. The coolant and heat medium exchange heat at heat exchanger 48, lowering the temperature of the heat medium. Driven by second liquid pump 47, the cooled heat medium circulates along hot water circulation pipe 45, cooling the concrete until the required temperature is reached. This prevents cracking of the concrete due to temperature stress.

[0028] To ensure slope safety, workers need to measure the soil quality and moisture content before construction. For slopes consisting of rock (severely weathered rock with numerous joints and fissures) or loose soil with a moisture content exceeding 70%, the slope of slope body 1 should be 6–15°; for slopes consisting of dense soil with a moisture content of 60–70%, the slope of slope body 1 should be 30–60°. It should be noted that before construction, the slope surface of slope body 1 needs to be trimmed. This can be done through mechanical trimming and surface treatment. For uneven slopes, methods such as using wire mesh with small anchor rods for localized anchoring, weaving straw fibers into the mesh to increase roughness, and smooth blasting combined with rock blasting can be used to ensure the slope and flatness of slope body 1 meet construction requirements.

[0029] As an embodiment of the specific structure of the protective layer 3, in this embodiment, the protective layer 3 is any one of wire mesh, geotextile, and thermal insulation film.

[0030] Reference Figure 2 As shown, when the filter layer 2 is made of gravel, the support structure also includes a compacted layer 5 and a reinforcing layer 6. The compacted layer 5 is pressed onto the protective layer 3 opposite to the filter layer 2, and is used to prevent deformation of the filter layer 2. The reinforcing layer 6 is laid on the compacted layer 5 to reinforce the slope body 1. Preferably, the thickness of the reinforcing layer 6 is 20–40 cm, and the reinforcing layer 6 is made of riprap; while the compacted layer 5 is made of gravel.

[0031] As a specific embodiment of the support structure, the filter layer 2 and the protective layer 3, the compacted layer 5 and the reinforcing layer 6 are respectively gravel, geotextile, gravel, and boulders. In this embodiment, the support structure is also referred to as: slope protection.

[0032] Before construction, the slope surface of slope body 1 was repaired.

[0033] During construction, 1) a loader is used to load qualified gravel into transport vehicles and safely transport it to the bottom of the slope. Then, a small excavator or manual labor is used to carefully transport the gravel up the slope to the laying position. Laying is carried out using a close combination of manual labor and a small excavator: first, the small excavator roughly spreads the gravel on the slope, then manual labor meticulously trims it to ensure uniform thickness and a smooth surface. During the laying process, the thickness of the gravel is precisely measured with a steel ruler to ensure it strictly meets the design requirement of 60 cm. A small vibratory roller or plate vibrator is used to compact the first layer of gravel (i.e., filter layer 2). Compaction should follow the scientific principle of starting with light compaction and gradually increasing pressure, proceeding slowly and gradually increasing speed, and proceeding in a reasonable sequence to ensure uniform and sufficient compaction. During compaction, close attention must be paid to controlling the operating speed and vibration frequency of the compaction equipment to avoid any damage to the slope. After compaction, reliable methods such as the ring cutter method are used to test the compaction degree of the gravel to ensure it fully meets the design requirements.

[0034] 2) Carefully cut the geotextile according to the size and shape of the slope surface. Lay the geotextile smoothly from the bottom of the slope upwards. During laying, pay special attention to keeping the geotextile flat and avoid any wrinkles, twists, or other defects. The geotextile should be tightly and firmly bonded to the surface of the first layer of gravel. Secure the geotextile reliably during laying. Use U-shaped nails to fix the geotextile to the gravel layer. The spacing of the U-shaped nails should strictly meet the design requirements (generally no more than 1 meter) and be evenly arranged in a quincunx pattern. At the overlaps of the geotextile, in addition to fixing with U-shaped nails, high-quality stitching should be performed.

[0035] 3) The laying method and requirements for the second layer of gravel (i.e., compacted layer 5) are the same as those for the first layer of gravel, and will not be repeated in this embodiment.

[0036] 4) Select hard, high-strength, weather-resistant, and crack-free boulders. Their particle size should meet design requirements, generally between 20-40 cm, to ensure overall stability after dry laying. Conduct strict quality inspections on the incoming boulders, discarding any that do not meet the requirements. Use small loaders or wheelbarrows for handling and initial paving of the boulders. Prepare an appropriate amount of small stones to fill larger gaps between (large) boulders, ensuring the compactness of the slope. Use tools such as levels, theodolites, and steel rulers to measure and control the slope's gradient, flatness, and elevation. Use small hammers and crowbars to manually trim the boulders and level the slope surface.

[0037] Furthermore, when the filter layer 2 is made of gravel, the support structure also includes a flexible mesh 7. The flexible mesh 7 is hung on the reinforcement layer 6 and is used to prevent the reinforcement layer 6 from falling off, thus improving the safety of this support structure.

[0038] When the filter layer 2 is made of planted grass or shrubs, a water storage tank (not shown in the figure) connected to a water collection pipe is buried at the bottom of the slope body 1 to collect rainwater during rainfall. The water storage tank is connected to a sprinkler system (not shown in the figure) via a pipe. When it is necessary to water the planted grass or shrubs, the rainwater collected in the water storage tank can be used through the sprinkler system. The sprinkler system consists of a pressurizing device, nozzles, and a piping system. In this embodiment, the sprinkler system can be an existing agricultural or landscaping sprinkler system. It should be noted that regular watering is required within one year after the planted grass or shrubs are sprayed.

[0039] This invention also provides the following technical solution: a slope support method for complex plateau slopes, applicable to the aforementioned complex plateau slope support structures. The slope support method includes the following steps: S1. Use instruments to measure the soil quality and moisture content of slope body 1, and adjust the slope of slope body 1 according to design requirements.

[0040] Specifically, in step S1), when the slope is a rock slope or a loose soil slope with a water content of over 70%, the slope of the slope body 1 is 6–15°; and When the slope is a soil slope with dense soil and a water content of 60-70%, the slope of the slope body 1 is 30-60°.

[0041] S2. After the slope body 1 is repaired, inspection and acceptance will be carried out.

[0042] The purpose of step S2 is to ensure that the slope of the slope body 1 meets the safety requirements.

[0043] S3. Lay the reverse filter layer 2 from bottom to top along the slope surface of the slope body 1, and at the same time bury the water collection pipe in the reverse filter layer 2.

[0044] The purpose of step S2 is to allow for the flexible use of different materials to create the filter layer 2, depending on the complex terrain of the plateau slope, such as soil slopes and rock slopes, and the different degrees of looseness and moisture content of the soil in different road sections.

[0045] S4. Cover the surface of the filter layer 2 with a protective layer 3 from bottom to top, up to the anchoring trench at the top of the slope body 1, and fill the anchoring trench with earth.

[0046] The purpose of step S4 is to ensure that the protective layer 3 does not detach from the slope surface of the slope body 1.

[0047] S5. Use connector 8 to fix the protective layer 3 onto the filter layer 2.

[0048] The purpose of step S5 is to ensure that the protective layer 3 and the filter layer 2 are tightly connected together.

[0049] S6. Press the compacted layer 5 onto the protective layer 3, which is opposite to the position of the filter layer 2, from bottom to top.

[0050] The purpose of step S6 is to prevent deformation of the filter layer 2.

[0051] S7. Lay the reinforcement layer 6 on the compacted layer 5 from bottom to top.

[0052] The purpose of step S7 is to reinforce the slope body 1.

[0053] S8. Hang the flexible net 7 on the reinforcement layer 6.

[0054] The purpose of step S8 is to prevent the reinforcement layer 6 from falling off.

[0055] It is worth mentioning that when the filter layer 2 is made of concrete or cement slurry, an intelligent temperature control device 4 is installed on the filter layer 2. The specific structure of the intelligent temperature control device 4 will not be described in this embodiment.

[0056] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A slope support structure based on the complex conditions of a plateau, wherein the slope comprises: A slope body, wherein a support structure is provided on the slope body, characterized in that the support structure comprises: A filter layer, laid on the slope surface of the slope body, is used to prevent soil erosion within the slope body. A water collection pipe is embedded within the filter layer to drain seepage. A protective layer is applied over the filter layer to protect it. The protective layer is connected to the filter layer via connectors and extends to the top of the slope body to connect with an anchoring trench at the top of the slope body.

2. The slope support structure based on the complex plateau terrain according to claim 1, characterized in that, The filter layer can be any one of gravel, concrete, cement slurry, planted grass, or shrubs.

3. The slope support structure based on the complex plateau terrain according to claim 1, characterized in that, When the filter layer is made of concrete or cement slurry, the support structure further includes: an intelligent temperature control device for adjusting the temperature difference between the surface and the interior of the filter layer. The intelligent temperature control device includes: a temperature sensor, a cooling water circulation pipe, a cold water tank, a first liquid pump, a hot water circulation pipe, a hot water tank, a second liquid pump, a heat exchanger, a heater, and a PLC controller. Both the temperature sensor and the hot water circulation pipe are embedded in the filter layer. The heater is connected to the hot water tank and is used to heat the heat medium in the hot water tank; The temperature sensor, the first liquid pump, the second liquid pump, and the heater are all connected to the PLC controller; The cold water tank, the first liquid pump, and the cold water side of the heat exchanger are connected through the cooling water circulation pipe to form a cooling water circulation loop; The hot water tank, the second liquid pump, and the hot water side of the heat exchanger are connected through the hot water circulation pipe to form a hot water circulation loop; The refrigerant in the cooling water circulation loop flows in the opposite direction to the heat medium in the hot water circulation loop.

4. The slope support structure based on the complex plateau terrain according to claim 1, characterized in that, The protective layer is any one of wire mesh, geotextile, or thermal insulation film.

5. The slope support structure based on the complex plateau terrain according to claim 1, characterized in that, When the filter layer is made of gravel, the support structure further includes: a compacted layer, a reinforcing layer, and a flexible mesh; The compacted layer is pressed onto the protective layer, which is positioned opposite to the filter layer, to prevent the filter layer from deforming. The reinforcement layer is laid on the compacted layer and is used to reinforce the slope body; The flexible netting is attached to the reinforcing layer to prevent it from falling off.

6. The slope protection structure based on the complex plateau terrain according to claim 5, characterized in that, The thickness of the reinforcing layer is 20-40 cm, and the reinforcing layer is made of stone blocks; and The compacted layer is made of gravel.

7. A method for slope support in complex high-altitude areas, characterized in that, The slope protection method is applicable to the slope protection structure based on complex plateau slopes as described in any one of claims 1-6, and the slope protection method includes the following steps: S1. Use instruments to measure the soil quality and moisture content of the slope body, and adjust the slope of the slope body according to the design requirements. S2. After the slope body is repaired, inspection and acceptance shall be carried out. S3. Lay a filter layer from bottom to top along the slope surface of the slope body, and bury the water collection pipe in the filter layer at the same time. S4. Cover the surface of the filter layer from bottom to top with a protective layer, up to the anchoring trench at the top of the slope body, and fill the anchoring trench with earth. S5. Use connectors to fix the protective layer to the filter layer.

8. The slope support method based on complex plateau terrain according to claim 7, characterized in that, The slope protection method also includes the following steps: S6. Press the compacted layer onto the protective layer, which is opposite to the position of the filter layer, from bottom to top; S7. Lay the reinforcement layer on the compacted layer from bottom to top; S8. Hang the flexible net on the reinforcement layer.

9. The slope support method based on complex plateau terrain according to claim 7, characterized in that, In step S1), when the slope is a rock slope or a loose soil slope with a water content of over 70%, the slope of the slope body is 6–15°; and When the slope is a soil slope with dense soil and a moisture content of 60-70%, the slope of the slope body is 30-60°.

10. The slope support method based on complex plateau terrain according to claim 7, characterized in that, When the filter layer is made of concrete or cement slurry, an intelligent temperature control device is installed on the filter layer.

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