Slope supporting system

Abstract

The utility model relates to the technical field of side slope supporting, in particular to a side slope supporting system which comprises an upper pile-slab wall and a lower pile-slab wall which are arranged in a spaced mode in the gradient direction of a side slope, first backfill soil is arranged on the portion, located on the upper side of the upper pile-slab wall, of the side slope, and the first backfill soil abuts against the upper pile-slab wall. A sloping platform is arranged between the upper sheet-pile wall and the lower sheet-pile wall and supports the upper sheet-pile wall; the structure further comprises sash beams, and the sash beams are arranged on the slope face side of the sloping platform and used for reinforcing the sloping platform. First backfill soil is supported through the upper side of the side slope and the upper pile-slab wall, so that the first backfill soil forms a backfill foundation on the side slope, a site is provided at the top of the side slope, and the upper pile-slab wall is supported through the sloping platform to provide passive soil pressure for the upper pile-slab wall; the problem that a large pile diameter needs to be adopted for enhancing the bearing capacity of the upper sheet-pile wall traditionally is solved, the pile diameter of the pile foundation of the upper sheet-pile wall is effectively reduced, the construction cost is saved, and the construction difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of slope support, in particular to a slope support system. Background Art

[0002] With the development of a large number of infrastructure projects, a large number of slopes are often excavated during the construction of roads and railways. Natural soil slopes are often weak and loose and prone to shallow landslides. The reason is that the cohesion of the soil slopes is insufficient, so the slopes need to be reinforced and protected.

[0003] During the construction process, when building a factory or other buildings near a steep slope, the steep slope is close to the building, resulting in poor slope conditions and difficult to effectively support the slope. Traditional single cantilever piles, anchor piles, inclined retaining walls and other support methods cannot meet the requirements of the site conditions. Utility Model Content

[0004] The purpose of the utility model is to provide a slope support system to address the problem in the background technology that when a factory building or other building is constructed near a steep slope, the steep slope is close to the building, resulting in no good slope conditions and difficulty in effectively supporting the slope.

[0005] The utility model provides a slope support system, comprising an upper pile-sheet wall and a lower pile-sheet wall arranged at intervals along the slope direction of the slope, wherein a first backfill soil is provided on the upper portion of the upper pile-sheet wall on the slope, and the first backfill soil abuts against the upper pile-sheet wall;

[0006] A slope reduction platform is provided between the upper pile-sheet wall and the lower pile-sheet wall, and the slope reduction platform supports the upper pile-sheet wall;

[0007] It also includes a lattice beam, which is arranged on the slope side of the slope platform and is used to reinforce the slope platform.

[0008] The slope support system described in the present application comprises an upper pile-sheet wall and a lower pile-sheet wall arranged at intervals along the slope direction, and a first backfill soil is provided on the upper portion of the slope located above the upper pile-sheet wall. The first backfill soil abuts the upper pile-sheet wall and is supported by the upper side of the slope and the upper pile-sheet wall to ensure the stability of the first backfill soil, thereby forming a backfill foundation on the slope, thereby providing a space at the top of the slope and a stable foundation for the subsequent construction of buildings on the steep slope.

[0009] Furthermore, a slope platform is provided between the upper pile-sheet wall and the lower pile-sheet wall, which supports the upper pile-sheet wall through the slope platform, thereby providing passive earth pressure for the upper pile-sheet wall, effectively increasing the bearing capacity of the upper pile-sheet wall. At the same time, since the slope platform supports the upper pile-sheet wall, the problem of using a larger pile diameter in the traditional method to enhance the bearing capacity of the upper pile-sheet wall is avoided, and the pile foundation diameter of the upper pile-sheet wall is effectively reduced, saving engineering cost and reducing construction difficulty. The present application excavates and backfills a zone on the upper side of the slope, then sets a first backfill soil, and then uses the slope platform formed by the original slope surface of the slope between the upper pile-sheet wall and the lower pile-sheet wall to support the upper pile-sheet wall. The combination of excavation area and non-excavation area is adopted to fully utilize the existing conditions of the slope and reduce the construction process. At the same time, a frame beam is set on the slope side of the slope platform. The frame beam is used to reinforce the slope platform to ensure that the slope platform can effectively support the upper pile-sheet wall.

[0010] Preferably, the lattice beams include transverse beams and longitudinal beams, and the transverse beams and longitudinal beams intersect to form a grid structure;

[0011] Anchor rods are also included, and the anchor rods are arranged at the nodes of the grid structure.

[0012] Preferably, the lattice beam further comprises a top beam and a base beam, the top beam being arranged at the top of the slope side of the slope platform, the base beam being arranged at the bottom of the slope side of the slope platform, and the two ends of the longitudinal beam being respectively connected to the top beam and the base beam.

[0013] Preferably, it further comprises a positioning bracket group, and the positioning bracket group is arranged at intervals along the length direction of the anchor rod.

[0014] Preferably, the positioning bracket group includes a plurality of positioning brackets, and each group of positioning brackets is arranged circumferentially around the anchor rod.

[0015] Preferably, a first waterproof layer is further provided on the top of the slope platform, and the first waterproof layer is in contact with the upper pile-board wall.

[0016] Preferably, it further comprises an anti-seepage plate, which is arranged on the top of the first waterproof layer and abuts against the upper pile board wall.

[0017] Preferably, it further comprises a water filter layer, which is located between the first backfill soil and the upper pile-sheet wall, and the water filter layer is arranged along the height direction of the upper pile-sheet wall.

[0018] Preferably, it further comprises a sealing layer, which is located at the bottom of the first backfill soil and is arranged in the area between the upper pile-sheet wall and the slope.

[0019] Preferably, it further comprises a first anchor cable and a second anchor cable;

[0020] The first anchor cables are arranged at intervals along the length direction of the upper pile-sheet wall, and the first anchor cables are connected to the upper pile-sheet wall;

[0021] The second anchor cables are arranged at intervals along the length direction of the lower pile-sheet wall, and the second anchor cables are connected to the lower pile-sheet wall.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The slope support system described in the present application comprises an upper pile-sheet wall and a lower pile-sheet wall arranged at intervals along the slope direction, and a first backfill soil is provided on the upper portion of the slope located above the upper pile-sheet wall. The first backfill soil abuts the upper pile-sheet wall and is supported by the upper side of the slope and the upper pile-sheet wall to ensure the stability of the first backfill soil, thereby forming a backfill foundation on the slope, thereby providing a space at the top of the slope and a stable foundation for the subsequent construction of buildings on the steep slope.

[0024] Furthermore, a slope platform is provided between the upper pile-sheet wall and the lower pile-sheet wall, which supports the upper pile-sheet wall through the slope platform, thereby providing passive earth pressure for the upper pile-sheet wall, effectively increasing the bearing capacity of the upper pile-sheet wall. At the same time, since the slope platform supports the upper pile-sheet wall, the problem of using a larger pile diameter in the traditional method to enhance the bearing capacity of the upper pile-sheet wall is avoided, and the pile foundation diameter of the upper pile-sheet wall is effectively reduced, saving engineering cost and reducing construction difficulty. The present application excavates and backfills a zone on the upper side of the slope, then sets a first backfill soil, and then uses the slope platform formed by the original slope surface of the slope between the upper pile-sheet wall and the lower pile-sheet wall to support the upper pile-sheet wall. The combination of excavation area and non-excavation area is adopted to fully utilize the existing conditions of the slope and reduce the construction process. At the same time, a frame beam is set on the slope side of the slope platform. The frame beam is used to reinforce the slope platform to ensure that the slope platform can effectively support the upper pile-sheet wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the slope support structure of this application.

[0026] Figure 2 It is a schematic diagram of the upper structure of this application.

[0027] Figure 3 yes Figure 2 A local enlarged schematic diagram of point A.

[0028] Figure 4 It is a schematic diagram of the sash beam of this application.

[0029] Figure 5 It is a schematic diagram of the connection between anchor rods and frame beams.

[0030] Figure 6 yes Figure 5 Cross-sectional view at BB.

[0031] Figure 7 It is a structural diagram of the positioning bracket.

[0032] Figure 8 It is a structural diagram of pile foundation and retaining wall.

[0033] Markings in the figure:

[0034] 1-Slope, 2-Upper pile-sheet wall, 21-First pile foundation, 22-First retaining wall, 23-First crown beam, 3-Lower pile-sheet wall, 4-Slope platform, 5-First backfill, 6-Frame beam, 61-Horizontal beam, 62-Longitudinal beam, 63-Top beam, 64-Foundation beam, 65-Grid beam unit, 66-Beam main reinforcement, 7-Anchor rod, 8-Positioning bracket group, 81-Positioning bracket, 811-Protrusion, 812-Supporting part, 9-First aquiclude, 10-Impermeable plate, 20-Filtration layer, 30-Sealing layer, 40-First anchor cable, 50-Second anchor cable, 60-Blind ditch, 70-Second aquiclude, 80-Drainage channel, 90-Anchor hole. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments. All technologies implemented based on the present invention fall within the scope of the present invention.

[0036] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating orientation or positional relationships, such as "upper," "lower," "left," "right," "center," "inside," and "outside," are based on the orientation or positional relationships shown in the accompanying drawings, or are the orientation or positional relationships in which the product / device / apparatus of the present invention is typically placed when in use. These terms indicating orientation or positional relationships are merely for the purpose of facilitating the description of the present invention or simplifying the description of the specific embodiments to facilitate a quick understanding of the solutions by technicians. They do not indicate or imply that a particular device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship, and therefore should not be construed as limiting the present invention.

[0037] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simply understood that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", and "parallel", and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the present utility model.

[0038] In addition, the expressions "first", "second", "third", etc. that appear in the terms are merely descriptions used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0039] In addition, in the description of the embodiments of the present invention, "several", "a plurality", and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0040] Furthermore, in the description of the technical solutions of this utility model, unless otherwise expressly specified / defined / restricted, the terms "disposed," "installed," "connected," "connected," "provided with," "laid," and "arranged" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be welding, riveting, bolting, threading, or other commonly used connection methods in the art. Such connections may be mechanical, electrical, or communication connections; they may be direct connections, indirect connections through an intermediate medium, or internal connections between two components.

[0041] Example 1

[0042] like Figure 1-Figure 2 As shown, a slope support system includes an upper pile-sheet wall 2 and a lower pile-sheet wall 3 spaced apart along the slope direction of a slope 1. A first backfill 5 is provided on the upper side of the upper pile-sheet wall 2 on the slope 1, and the first backfill 5 abuts against the upper pile-sheet wall 2.

[0043] A slope reduction platform 4 is provided between the upper pile-sheet wall 2 and the lower pile-sheet wall 3, and the slope reduction platform 4 supports the upper pile-sheet wall 2;

[0044] It also includes a lattice beam 6, which is arranged on the slope side of the slope platform 4. The lattice beam 6 is used to reinforce the slope platform 4.

[0045] The first backfill soil is supported by the upper side of the slope and the upper pile-sheet wall to ensure its stability, so that the first backfill soil forms a backfill foundation on the slope, thereby providing a site at the top of the slope and a stable foundation for the subsequent construction of buildings on the steep slope;

[0046] Furthermore, a slope platform 4 is provided between the upper pile-sheet wall 2 and the lower pile-sheet wall 3, which supports the upper pile-sheet wall 2 through the slope platform 4, thereby providing passive earth pressure for the upper pile-sheet wall 2, thereby effectively increasing the bearing capacity of the upper pile-sheet wall 2. At the same time, since the slope platform 4 supports the upper pile-sheet wall 2, the problem of using a larger pile diameter in the traditional method to enhance the bearing capacity of the upper pile-sheet wall 2 is avoided, and the pile diameter of the pile foundation of the upper pile-sheet wall 2 is effectively reduced, thereby saving engineering cost and reducing construction difficulty. By excavating a backfill area on the upper side of the slope 1, then setting the first backfill soil 5, and then using the slope platform 4 formed by the original slope surface of the slope 1 between the upper pile-sheet wall 2 and the lower pile-sheet wall 3 to support the upper pile-sheet wall 2, the excavation area and the non-excavation area are combined to fully utilize the existing conditions of the slope 1 and reduce the construction process. At the same time, a frame beam 6 is set on the slope side of the slope platform 4. The frame beam 6 is used to reinforce the slope platform 4 to ensure that the slope platform 4 can effectively support the upper pile-sheet wall 2.

[0047] In this embodiment, the slope reduction platform 4 is formed by the original slope surface of the slope 1, and is reinforced by lattice beams 6 to form a permanent platform.

[0048] In one or more embodiments, Figure 4 As shown, the lattice beam 6 includes a transverse beam 61 and a longitudinal beam 62, and the transverse beam 61 and the longitudinal beam 62 cross to form a grid structure;

[0049] The structure further comprises anchor rods 7, which are arranged at nodes of the grid structure.

[0050] The cross-grid structure of the cross beams 61 and the longitudinal beams 62 can effectively disperse the load applied to the lattice beams 6, reduce the local pressure of the lattice beams 6, and thus improve the stability of the entire structure of the lattice beams 6, so as to bear the soil pressure of the slope platform 4;

[0051] Anchor rods 7 are arranged at the nodes of the grid structure to enhance the bearing capacity of these intersections, forming a more robust support system. At the same time, the anchor rods at the nodes penetrate deep into the slope 1, which can effectively transfer the load and enhance the bearing capacity of the entire frame beam.

[0052] Further, if Figure 4As shown, the grid structure has multiple lattice beam units 65, that is, rectangular units composed of cross beams 61 and longitudinal beams 62. The multiple lattice beam units of the grid structure can effectively share and transfer the load on the frame beam 6 to ensure the structural stability of the frame beam 6. At the same time, when the slope 1 is greened in the later stage, the lattice beam units 65 are used to set vegetation bags or plant grass seeds, etc., to facilitate the greening construction of the slope 1.

[0053] In an optional embodiment, if Figure 4 As shown, the lattice beam 6 also includes a top beam 63 and a base beam 64. The top beam 63 is arranged at the top of the slope side of the slope platform 4, and the base beam 64 is arranged at the bottom of the slope side of the slope platform 4. The two ends of the longitudinal beam 62 are respectively connected to the top beam 63 and the base beam 64.

[0054] The top beam 63 is arranged at the top of the slope of the slope platform 4, and the foundation beam 64 is arranged at the bottom of the slope of the slope platform 4, forming a frame structure combined with the upper and lower parts, which helps to effectively resist lateral loads, enhance the stability of the entire frame beam 6, and reduce the risk of landslides. At the same time, the connection between the longitudinal beam 62, the top beam 63 and the foundation beam 64 forms a continuous load transfer path, which can better transfer the upper load to the bottom foundation, thereby improving the bearing capacity of the frame beam 6.

[0055] In one or more embodiments, Figure 5 As shown, it also includes a positioning bracket group 8, which is arranged at intervals along the length direction of the anchor rod 7.

[0056] When installing the anchor rod 7, a plurality of positioning bracket groups 8 are arranged at intervals along the length direction of the anchor rod 7. The positioning bracket groups 8 support the anchor rod 7 in the anchor hole 90 to ensure that there is a certain gap between the anchor rod 7 and the inner wall of the anchor hole 90. After the anchor hole 90 is poured, it is ensured that the concrete slurry can wrap around the anchor rod 7, so that the anchor rod 7 is firmly anchored in the anchor hole 90.

[0057] Further, if Figure 6 As shown, the positioning bracket group 8 includes multiple positioning brackets 81, and each group of positioning brackets 81 is arranged circumferentially around the anchor rod 7. In order to ensure that the anchor rod 7 is in the center position in the anchor hole 90, so that the anchor rod 7 can have sufficient anchoring force after subsequent grouting into the anchor hole 90, the positioning brackets 81 are arranged circumferentially around the anchor rod 7, and the anchor rod 7 is circumferentially supported by the positioning brackets 81.

[0058] In this embodiment, if Figure 5 As shown, the top of the anchor rod 7 is overlapped on the main reinforcement 66 of the frame beam 6 at the node, and then the anchor rod 7 and the frame beam 6 are cast together to form a whole.

[0059] In this embodiment, if Figure 7As shown, the positioning bracket 81 includes a protrusion 811 and a support portion 812 connected to both ends of the protrusion 811, the support portion 812 is connected to the anchor rod 7, and the protrusion 811 is used to abut the side wall of the anchor hole 90, wherein the positioning bracket 81 can be made of round steel. When installing the anchor rod 7, the support portion 812 of the positioning bracket 81 is welded to the anchor rod 7.

[0060] In one or more embodiments, Figure 2 As shown, a first waterproof layer 9 is further provided on the top of the slope platform 4 , and the first waterproof layer 9 is in contact with the upper pile-sheet wall 2 .

[0061] The first waterproof layer 9 can effectively prevent the penetration of rainwater or groundwater, reduce the erosion of water on the soil of the slope platform 4, and maintain the stability of the slope platform 4 structure.

[0062] In an optional embodiment, if Figure 3 As shown, an anti-seepage plate 10 is further included. The anti-seepage plate 10 is arranged on the top of the first waterproof layer 9, and the anti-seepage plate 10 is in contact with the upper pile-sheet wall 2.

[0063] By setting an anti-seepage plate 10 on the top of the first waterproof layer 9, and the anti-seepage plate 10 abutting against the upper pile-sheet wall 2, water is prevented from seeping in from the abutment between the upper pile-sheet wall 2 and the first waterproof layer 9, and the soil in the contact area between the first waterproof layer 9 and the upper pile-sheet wall 2 is prevented from softening, thereby affecting the overall quality of the upper pile-sheet wall 2.

[0064] In an optional embodiment, if Figure 2 As shown, a support platform is formed on the top of the first backfill soil 5, which effectively increases the utilization area and land utilization rate of the site and provides working space for the slope top.

[0065] In one or more embodiments, Figure 1 As shown, it also includes a first anchor cable 40 and a second anchor cable 50;

[0066] The first anchor cables 40 are arranged at intervals along the length direction of the upper pile-sheet wall 2, and the first anchor cables 40 are connected to the upper pile-sheet wall 2;

[0067] The second anchor cables 50 are arranged at intervals along the length direction of the lower pile-sheet wall 3 , and the second anchor cables 50 are connected to the lower pile-sheet wall 3 .

[0068] like Figure 3 、 Figure 8 As shown, the upper pile-sheet wall 2 includes a first pile foundation 21 , a first retaining plate 22 and a first crown beam 23 . The first retaining plate 22 is arranged between adjacent first pile foundations 21 , and the tops of the first pile foundation 21 and the first retaining plate 22 are both connected to the first crown beam 23 .

[0069] Similarly, the lower pile-sheet wall 3 includes second pile foundations, second retaining plates and second crown beams. The second retaining plates are arranged between adjacent second pile foundations, and the tops of the second pile foundations and the second retaining plates are both connected to the second crown beam.

[0070] In an optional embodiment, if Figure 3 As shown, a second waterproof layer 70 is further provided on top of the first backfill soil 5 .

[0071] In an optional embodiment, if Figure 3 As shown, several groups of blind trenches 60 are provided inside the first backfill soil 5 from top to bottom.

[0072] Example 2

[0073] On the basis of Example 1, Figure 3 As shown, the slope support system described in this embodiment further includes a drainage layer 20, which is located between the first backfill 5 and the upper pile-sheet wall 2 and extends along the height of the upper pile-sheet wall 2. The drainage layer 20 helps improve drainage around the upper pile-sheet wall 2, reduces water retention, and helps maintain the stability of the first backfill 5. The drainage layer 20 is composed of sand and pebbles.

[0074] In one or more embodiments, Figure 3 As shown, a sealing layer 30 is further included. The sealing layer 30 is located at the bottom of the first backfill soil 5 and is arranged in the area between the upper pile-sheet wall 2 and the slope 1. The material of the sealing layer 30 is clay.

[0075] By providing a sealing layer 30 in the area between the upper pile-sheet wall 2 and the slope 1 , the first backfill soil 5 is prevented from penetrating into the bottom of the upper pile-sheet wall 2 , thereby ensuring the structural stability of the upper pile-sheet wall 2 .

[0076] In an optional embodiment, a drainage channel 80 is further provided between the water filter layer 20 and the first retaining plate 22. The slope of the drainage channel 80 is greater than or equal to 5°, wherein the drainage channel 80 is made of a PVC pipe and buried in the slope;

[0077] Among them, the upper end of the PVC pipe is also provided with a filter bag. The filter bag is a water filtration structure, which is a bag-shaped structure formed by wrapping filter material (such as sand, gravel or synthetic material) in a permeable material (such as non-woven fabric, filter mesh, etc.). It is arranged around the upper end of the drainage channel, that is, the filter bag is set at one end of the drainage channel 80 close to the water filtration layer 20 to prevent the loss of soil particles of the first backfill soil 5 while allowing water to pass through.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A slope support system, characterized in that: The invention comprises an upper pile-sheet wall (2) and a lower pile-sheet wall (3) arranged at intervals along the slope direction of the slope (1); a first backfill soil (5) is provided on the upper side of the upper pile-sheet wall (2) of the slope (1); and the first backfill soil (5) abuts against the upper pile-sheet wall (2); A slope reduction platform (4) is provided between the upper pile-sheet wall (2) and the lower pile-sheet wall (3), and the slope reduction platform (4) supports the upper pile-sheet wall (2); It also includes a lattice beam (6), which is arranged on the slope side of the slope-reducing platform (4), and is used to reinforce the slope-reducing platform (4).

2. A slope support system according to claim 1, characterized in that: The lattice beam (6) comprises a crossbeam (61) and a longitudinal beam (62), wherein the crossbeam (61) and the longitudinal beam (62) intersect to form a grid structure; It also includes anchor rods (7), which are arranged at nodes of the grid structure.

3. A slope support system according to claim 2, characterized in that: The lattice beam (6) further comprises a top beam (63) and a base beam (64), wherein the top beam (63) is arranged at the top of the slope surface side of the slope-reducing platform (4), and the base beam (64) is arranged at the bottom of the slope surface side of the slope-reducing platform (4), and the two ends of the longitudinal beam (62) are respectively connected to the top beam (63) and the base beam (64).

4. A slope support system according to claim 2, characterized in that: It also includes a positioning bracket group (8), and the positioning bracket group (8) is arranged at intervals along the length direction of the anchor rod (7).

5. A slope support system according to claim 4, characterized in that: The positioning bracket group (8) comprises a plurality of positioning brackets (81), and each group of positioning brackets (81) is circumferentially arranged around the anchor rod (7).

6. A slope support system according to claim 1, characterized in that: A first waterproof layer (9) is also provided on the top of the slope platform (4), and the first waterproof layer (9) is in contact with the upper pile-sheet wall (2).

7. A slope support system according to claim 6, characterized in that: It also includes an anti-seepage plate (10), which is arranged on the top of the first waterproof layer (9), and the anti-seepage plate (10) is in contact with the upper pile board wall (2).

8. The slope support system according to claim 1, characterized in that: It also includes a water filter layer (20), which is located between the first backfill soil (5) and the upper pile-sheet wall (2), and the water filter layer (20) is arranged along the height direction of the upper pile-sheet wall (2).

9. A slope support system according to claim 8, characterized in that: It also includes a sealing layer (30), which is located at the bottom of the first backfill soil (5), and the sealing layer (30) is arranged in the area between the upper pile-sheet wall (2) and the slope (1).

10. The slope support system according to claim 1, characterized in that: Also included is a first anchor cable (40) and a second anchor cable (50); The first anchor cables (40) are arranged at intervals along the length direction of the upper pile-sheet wall (2), and the first anchor cables (40) are connected to the upper pile-sheet wall (2); The second anchor cables (50) are arranged at intervals along the length direction of the lower pile-sheet wall (3), and the second anchor cables (50) are connected to the lower pile-sheet wall (3).

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