Anchor cable frame combined retaining wall reinforcement method and structure for unstable slope

Abstract

The present invention belongs to the technical field of slope reinforcement, and discloses a method and structure for reinforcing an anchor cable frame combined retaining wall for an unstable slope. The method includes S1: calculating the slope sliding thrust of the unstable slope, and preliminarily determining the structural form and size of the slope anchor cable frame and the retaining wall; S2: according to the geological conditions and topographical features of the unstable slope, S3: performing anti-overturning and anti-sliding verification calculations on the retaining wall, as well as the horizontal section strength verification calculation of the retaining wall body and the vertical section displacement calculation of the wall body; S4: verifying the deep sliding of the slope for the slope anchor cable frame, and S5: embedding the retaining wall anchor cable frame adapted to the slope anchor cable frame into the retaining wall, and connecting the retaining wall anchor cable frame with the slope anchor cable frame as one, and calculating the first safety factor of the integrated structure. The present invention organically combines the anchor cable frame with the retaining wall structure, and the two cooperate in deformation and common bearing, thereby effectively ensuring the stability of the slope structure.

Description

Technical Field

[0001] The invention belongs to the technical field of slope reinforcement, and more specifically, relates to a reinforcement method and structure of an anchor cable frame combined retaining wall for an unstable slope. Background Art

[0002] In engineering construction, slope instability is one of the more common engineering problems. For example, when building bridges, roads, and houses, it is easy to cause sliding damage to the surrounding slopes. When dealing with such slope problems, due to the extremely complex structure itself and the diversity of rock and soil characteristics, slope instability still occurs from time to time after engineering reinforcement. Data show that the economic losses caused by geological disasters such as landslides in my country are as high as 8 billion to 20 billion yuan each year. Therefore, caution should be exercised in the early design and construction process of the project. Any carelessness will lead to major engineering accidents, which will cause great harm to people's property and safety. At present, due to the insufficient understanding of some slope damage situations, the overly conservative slope design and support have resulted in excessively high economic costs for slope maintenance projects, causing unnecessary waste. In addition, because slopes often experience instability accidents of varying scales, new problems often arise on highway slopes as the construction process progresses. In particular, soft rock and loose body slopes are extremely susceptible to engineering disturbances, leading to landslides, which require continuous investment of manpower, material resources and expenses for remediation. This makes builders very passive in the face of landslide problems, and also lays many hidden dangers for the later operation and management of highways.

[0003] Although there are many methods for slope reinforcement, with the advancement of modernization, the scale of engineering construction continues to expand while the height of slopes also increases, thus placing higher and higher requirements on slope reinforcement technology. Commonly used measures for slope reinforcement in engineering include prestressed anchor cable method, grouting method, anti-slide piles, and retaining walls. In summary, retaining wall technology is a relatively mature technology for engineering applications, but a single retaining wall technology only relies on its own structural deadweight and shape characteristics to resist the lateral earth pressure of the slope. Although anchor cables and anchor rods are set in the retaining wall to improve its ability to resist the lateral earth pressure of the slope, the anchor cables and anchor rods fail to form a joint effect with the retaining wall structure. The overall stiffness is limited by the wall design and construction technology level, and the slope still has problems such as insufficient stability and structural strength. Summary of the invention

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a method and structure for reinforcing an anchor frame combined retaining wall for an unstable slope. The method and structure organically combine the anchor frame and the retaining wall structure into one according to the geological conditions and topographical features of the unstable slope. The two cooperate in deformation and bear load together, which can play a greater reinforcement role and avoid slope instability. The ability of the slope structure to resist mountain loads is greatly improved, thereby effectively ensuring the stability of the slope structure.

[0005] To achieve the above object, according to one aspect of the present invention, a reinforcement method for an anchor cable frame combined retaining wall for an unstable slope is provided, comprising the following steps:

[0006] S1: Calculate the slope sliding thrust of the unstable slope, and preliminarily determine the structural form and size of the slope anchor frame and retaining wall based on the slope sliding thrust;

[0007] S2: According to the geological conditions and topographic features of the unstable slope, combined with its geotechnical parameters, a generalized model is established, and the load and boundary conditions of the generalized model are set;

[0008] S3: Perform anti-overturning and anti-sliding calculations on the retaining wall, as well as the horizontal section strength calculation and vertical section displacement calculation of the retaining wall. If the structural stability and strength requirements are met, proceed to step S5; otherwise, return to step S1 to optimize and preliminarily determine the structural form and size of the slope anchor cable frame and the retaining wall.

[0009] S4: Verify the deep sliding of the slope with respect to the slope anchor cable frame, and determine whether the slope anchor cable frame reinforcement meets the engineering stability. If so, proceed to step S5, otherwise return to step S1, and optimize and preliminarily determine the structural form and size of the slope anchor cable frame and the retaining wall;

[0010] S5: embed the retaining wall anchor cable frame compatible with the slope anchor cable frame into the retaining wall, and connect the retaining wall anchor cable frame with the slope anchor cable frame as one, calculate the first safety factor of the integrated structure, if the first safety factor does not meet the slope stability requirements, return to step S1, optimize and preliminarily determine the structural form and size of the slope anchor cable frame and the retaining wall, if they meet the requirements, determine the reinforcement method and reinforcement parameters of the retaining wall anchor cable frame and the slope anchor cable frame that meet the slope stability requirements.

[0011] Furthermore, step S4 specifically includes the following steps:

[0012] The deep sliding of the slope is verified by introducing the geotechnical mechanics parameters into the generalized model, using the anchor frame reinforcement method, and calculating the second safety factor of the reinforced slope through the limit equilibrium method.

[0013] Furthermore, in step S5, the anchor cable frame combined retaining wall is reinforced by using a matrix anchor cable frame embedded in the retaining wall at the foot of the slope for reinforcement, and connected with the slope surface frame anchor cable as a whole.

[0014] Furthermore, the anchoring length of the anchor cable frame is the length of the anchor cable embedded in the stable stratum, and the spacing between the vertical beams and the horizontal beams of the frame is H / n, where H is the height of the retaining wall in the two-dimensional geological generalization model, and n is the number of horizontal beams.

[0015] Furthermore, the reinforcement parameters are wall height, wall thickness, and wall back inclination angle.

[0016] According to another aspect of the present invention, a reinforcement structure of an anchor cable frame combined retaining wall for an unstable slope is provided, taking a third-level slope as an example, comprising:

[0017] A retaining wall disposed in a primary slope, wherein an embedded frame is disposed in the retaining wall, the embedded frame comprising a primary transverse reinforcement rib and a primary vertical reinforcement rib;

[0018] A secondary section frame is arranged in the secondary slope, the secondary slope frame comprises secondary transverse reinforcement ribs and secondary vertical reinforcement ribs, and the secondary vertical reinforcement ribs are connected end to end with the primary vertical reinforcement ribs;

[0019] and a three-level slope frame arranged in the three-level slope, comprising three-level transverse reinforcement ribs and three-level vertical reinforcement ribs, wherein the three-level vertical reinforcement ribs are connected end to end with the two-level vertical reinforcement ribs;

[0020] The first-level transverse reinforcement ribs and the first-level vertical reinforcement ribs, the second-level transverse reinforcement ribs and the second-level vertical reinforcement ribs, and the third-level transverse reinforcement ribs and the third-level vertical reinforcement ribs are respectively provided with first-level slope anchor cables, second-level slope anchor cables and third-level slope anchor cables, which together constitute a matrix anchor cable frame structure and are embedded in the retaining wall structure at the foot of the slope, integrating the first-level slope, the second-level slope and the third-level slope into an integrated structure, jointly bearing the mountain load and deforming synergistically.

[0021] Furthermore, the first-level transverse reinforcement ribs and the first-level vertical reinforcement ribs, the second-level transverse reinforcement ribs and the second-level vertical reinforcement ribs, and the third-level transverse reinforcement ribs and the third-level vertical reinforcement ribs are matched and arranged in multiple pieces, crisscrossed, and the frame vertical beam spacing and the horizontal beam spacing are H / n, wherein H is the height of the retaining wall in the two-dimensional geological generalization model, and n is the number of beams.

[0022] In general, the above technical solution conceived by the present invention has the following technical advantages compared with the prior art:

[0023] 1. The present invention organically combines the anchor cable frame and the retaining wall structure into one according to the geological conditions and topographical features of the unstable slope. The two cooperate in deformation and carry the load together, which can play a greater reinforcement role, avoid slope instability, and damage to the reinforced structure.

[0024] 2. The present invention adopts a matrix-type anchor cable frame embedded in the retaining wall structure at the foot of the slope, integrating the retaining wall and the anchor cable frame into an integrated structure, which jointly bears the mountain load, deforms synergistically, and absorbs the mountain load energy, greatly improving the ability of the slope structure to resist the mountain load, thereby effectively ensuring the stability of the slope structure.

[0025] 3. The anchor cable frame in the retaining wall of the present invention not only reinforces the deep part of the slope, but also the retaining wall acts as a foot pressure on the slope foot, which is beneficial to improve the stability of the slope and plays a physical enclosure role on the slope foot to prevent the slope foot from sliding and collapsing due to rain erosion.

[0026] 4. If the slope surface reinforcement and slope foot reinforcement of the slope of the present invention are designed and implemented separately, the two cannot work together. By combining the anchor cable frame of the slope surface reinforcement and the retaining wall structure at the slope foot into one, the slope surface frame has a solid foundation at the slope foot, and the retaining wall at the slope foot is also more solid.

[0027] 5. The built-in frame structure of the present invention not only strengthens the overall rigidity of the retaining wall structure, which means that the amount of retaining wall material can be reduced when the rigidity is the same, but also improves the seismic performance of the retaining wall under earthquake action. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a flow chart of a method for reinforcing an anchor cable frame combined retaining wall structure for an unstable slope according to an embodiment of the present invention;

[0029] Figure 2 It is a cross-sectional schematic diagram of an anchor cable frame combined retaining wall structure for an unstable slope according to an embodiment of the present invention;

[0030] Figure 3 It is a top view of an anchor cable frame combined retaining wall structure for an unstable slope according to an embodiment of the present invention.

[0031] In all the drawings, the same figure marks represent the same technical features, specifically: 100-first-level slope, 200-second-level slope, 300-third-level slope, 101-retaining wall, 102-embedded frame, 103-first-level slope anchor cable, 104-first-level transverse reinforcement ribs, 105-first-level vertical reinforcement ribs, 201-second-level slope frame, 202-second-level slope anchor cable, 203-second-level transverse reinforcement ribs, 204-second-level vertical reinforcement ribs, 301-third-level slope frame, 302-third-level slope anchor cable, 303-third-level transverse reinforcement ribs, 304-third-level vertical reinforcement ribs. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figure 2 and Figure 3As shown, an embodiment of the present invention provides an anchor frame combined retaining wall structure for unstable slopes. According to the geological conditions and topographical features of the unstable slopes, the anchor frame and the retaining wall structure are organically combined into one. The two cooperate in deformation and common bearing, which can play a greater reinforcement role and avoid slope instability and reinforced structure damage. Specifically, in this embodiment, the slope test object is a slope of a certain highway section. The experimental slope includes strongly weathered mudstone, which is purple-red and gray-green, and is mainly composed of clay minerals; it also includes interlayered sandstone, mud cementation, sandy mud structure, thin-layer structure, soft rock, developed joints and fissures, broken rock mass, easy to soften when exposed to water, and easy to crack when dehydrated; the rock core is in the form of blocks, fragments and gravel soil. After the slope is disturbed or softened, it is reinforced and protected by an anchor frame, including a first-level slope 100, a second-level slope 200 and a third-level slope 300, wherein the first-level slope 100 is provided with The embedded frame 102, the secondary slope 200 is provided with a secondary slope frame 201, and the tertiary slope 300 is provided with a tertiary slope frame 301, and the embedded frame 102, the secondary slope frame 201 and the tertiary slope frame 301 adopt a matrix anchor frame to be embedded in the retaining wall structure at the foot of the slope, integrating the primary slope 100, the secondary slope 200 and the tertiary slope 300 into an integrated structure, jointly bearing the mountain load, synergistically deforming, absorbing the mountain load energy, greatly improving the ability of the slope structure to resist the mountain load, thereby effectively ensuring the stability of the slope structure. An anchor frame combined retaining wall structure for an unstable slope provided in an embodiment of the present invention, a concrete frame is set in the retaining wall, and anchor cables or anchor rods are arranged at the intersection of the frame beam nodes. For the retaining wall, the built-in frame structure not only strengthens the overall rigidity of the retaining wall structure, which means that the amount of retaining wall materials can be reduced at the same rigidity, but also improves the seismic performance of the retaining wall under earthquake action; for the slope, the anchor cable frame in the retaining wall not only reinforces the deep part of the slope, but also the retaining wall plays a role of pressing the foot of the slope, which is conducive to improving the stability of the slope, and plays a physical enclosure role for the foot of the slope to prevent the foot of the slope from sliding and collapsing due to rain erosion; furthermore, if the slope surface reinforcement and the foot of the slope are designed and implemented separately, the two cannot work together. The anchor cable frame of the slope reinforcement and the retaining wall structure at the foot of the slope are combined into one, and the slope surface frame has a solid foundation at the foot of the slope, and the retaining wall at the foot of the slope is also more solid. The present invention can more effectively play the combined reinforcement role of the built-in anchor cable frame and the retaining wall, and effectively improve the anti-slip ability and seismic performance of the retaining wall.

[0034] Specifically, if 2 and Figure 3As shown, the primary slope 100 is provided with a retaining wall 101, and an embedded frame 102 is provided in the retaining wall 101. Preferably, the embedded frame 102 includes a primary transverse reinforcement rib 104 and a primary vertical reinforcement rib 105. The primary transverse reinforcement rib 104 and the primary vertical reinforcement rib 105 are matched and arranged as a plurality of ribs, crisscrossed, and the frame vertical beam spacing and horizontal beam spacing are H / n, where H is the height of the retaining wall in the two-dimensional geological generalization model, and n is the number of horizontal beams. The two together form a matrix frame structure, which greatly improves the structural strength and bearing capacity of the retaining wall. In addition, a primary slope anchor cable 103 is provided at the intersection of each primary transverse reinforcement rib 104 and the primary vertical reinforcement rib 105, and the primary slope anchor cable 103 is driven into the mountain body for anchoring, further improving the stability of the retaining wall structure.

[0035] In the embodiment of the present invention, if 2 and Figure 3 As shown, a secondary slope frame 201 is provided in the secondary slope 200, and the secondary slope frame 201 includes a secondary transverse reinforcement rib 203 and a secondary vertical reinforcement rib 204. The secondary transverse reinforcement rib 203 and the secondary vertical reinforcement rib 204 are matched and arranged as multiple pieces, crisscrossed, and the frame vertical beam spacing and horizontal beam spacing are H / n, where H is the height of the retaining wall in the two-dimensional geological generalization model, and n is the number of horizontal beams. The two together form a matrix frame structure, which greatly improves the strength and bearing capacity of the secondary slope structure. At the same time, the secondary vertical reinforcement rib 204 is connected end to end with the primary vertical reinforcement rib 105 to ensure the consistency of vertical force transmission and further improve the structural bearing capacity. In addition, a secondary slope anchor cable 202 is provided at the intersection of the secondary transverse reinforcement rib 203 and the secondary vertical reinforcement rib 204, and the secondary slope anchor cable 202 is driven into the mountain body for anchoring, further improving the stability of the secondary slope structure.

[0036] In the embodiment of the present invention, Figure 2 and Figure 3 As shown, a three-level slope frame 301 is provided in the three-level slope 300, which includes three-level transverse reinforcement ribs 303 and three-level vertical reinforcement ribs 304, and the three-level transverse reinforcement ribs 303 and the three-level vertical reinforcement ribs 304 are matched and set to multiple, crisscrossed, and the frame vertical beam spacing and cross beam spacing are H / n, where H is the height of the retaining wall in the two-dimensional geological generalization model, and n is the number of cross beams. The two together form a matrix frame structure, which greatly improves the strength and bearing capacity of the three-level slope structure. At the same time, the three-level vertical reinforcement ribs 304 and the secondary vertical reinforcement ribs 204 are connected end to end to ensure the consistency of vertical force transmission and further improve the structural bearing capacity. In addition, a three-level slope anchor cable 302 is provided at the intersection of the three-level transverse reinforcement ribs 303 and the three-level vertical reinforcement ribs 304, and the three-level slope anchor cable 302 is driven into the mountain body for anchoring, further improving the stability of the secondary slope structure.

[0037] Furthermore, the anchor lengths of the primary slope anchor cable 103, the secondary slope anchor cable 202 and the tertiary slope anchor cable 302 are determined according to the depth of the potential sliding surface and the burial depth of the embedded stable stratum. The specific setting parameters are: the cross-sectional size of the frame beam is 500cm×500cm, the length of the secondary slope anchor cable 202 and the tertiary slope anchor cable 302 are both 20m, and the anchoring section length of the secondary slope anchor cable 202 and the tertiary slope anchor cable 302 is 10m, the length l1 of the primary slope anchor cable 103 is 15m, and the anchoring section of the primary slope anchor cable 103 is 7m; the arrangement form of the frame beam is a square matrix, and the frame beam spacing d is 3m. In other embodiments, the reinforcement method and reinforcement parameters of the anchor cable frame can be adaptively set according to actual conditions, and are not limited here.

[0038] like Figure 1 As shown, in another embodiment of the present invention, a method for reinforcing an anchor cable frame combined retaining wall for an unstable slope is provided, comprising the following steps:

[0039] S1: Calculate the slope sliding thrust of the unstable slope, and preliminarily determine the structural form and size of the slope anchor frame and retaining wall based on the slope sliding thrust;

[0040] S2: According to the geological conditions and topographic features of the unstable slope, combined with its geotechnical parameters, a generalized model is established, and the load and boundary conditions of the generalized model are set;

[0041] S3: Perform anti-overturning and anti-sliding calculations on the retaining wall, as well as the horizontal section strength calculation and vertical section displacement calculation of the retaining wall. If the structural stability and strength requirements are met, proceed to step S5; otherwise, return to step S1 to optimize and preliminarily determine the structural form and size of the slope anchor cable frame and the retaining wall.

[0042] S4: Verify the deep sliding of the slope with respect to the slope anchor cable frame, and determine whether the slope anchor cable frame reinforcement meets the engineering stability. If so, proceed to step S5, otherwise return to step S1, and optimize and preliminarily determine the structural form and size of the slope anchor cable frame and the retaining wall;

[0043] S5: embed the retaining wall anchor cable frame compatible with the slope anchor cable frame into the retaining wall, and connect the retaining wall anchor cable frame with the slope anchor cable frame as one, calculate the first safety factor of the integrated structure, if the first safety factor does not meet the slope stability requirements, return to step S1, optimize and preliminarily determine the structural form and size of the slope anchor cable frame and the retaining wall, if they meet the requirements, determine the reinforcement method and reinforcement parameters of the retaining wall anchor cable frame and the slope anchor cable frame that meet the slope stability requirements.

[0044] Furthermore, step S4 specifically includes the following steps:

[0045] The deep sliding of the slope is verified by introducing the geotechnical mechanics parameters into the generalized model, using the anchor frame reinforcement method, and calculating the second safety factor of the reinforced slope through the limit equilibrium method.

[0046] In addition, in step S5, the reinforcement method of the anchor frame combined retaining wall is to use a matrix anchor frame embedded in the retaining wall at the foot of the slope for reinforcement, and connected with the slope surface frame anchor cable as a whole. The anchoring length of the anchor frame is the length of the anchor cable embedded in the stable stratum, and the spacing between the frame vertical beams and the horizontal beams is H / n, where H is the height of the retaining wall in the two-dimensional geological generalization model, and n is the number of horizontal beams. The reinforcement parameters are wall height, wall thickness, and wall back inclination.

[0047] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reinforcement method for an anchor cable frame combined retaining wall for an unstable slope, characterized in that: The following steps are involved: S1: Calculate the slope sliding thrust of the unstable slope, and preliminarily determine the structural form and size of the slope anchor frame and retaining wall based on the slope sliding thrust; S2: According to the geological conditions and topographic features of the unstable slope, combined with its geotechnical parameters, a generalized model is established, and the load and boundary conditions of the generalized model are set; S3: Perform anti-overturning and anti-sliding calculations on the retaining wall, as well as the horizontal section strength calculation and vertical section displacement calculation of the retaining wall. If the structural stability and strength requirements are met, proceed to step S5; otherwise, return to step S1 to optimize and preliminarily determine the structural form and size of the slope anchor cable frame and the retaining wall. S4: Verify the deep sliding of the slope with respect to the slope anchor cable frame, and determine whether the slope anchor cable frame reinforcement meets the engineering stability. If so, proceed to step S5, otherwise return to step S1, and optimize and preliminarily determine the structural form and size of the slope anchor cable frame and the retaining wall; S5: embed the retaining wall anchor cable frame compatible with the slope anchor cable frame into the retaining wall, and connect the retaining wall anchor cable frame with the slope anchor cable frame as one, calculate the first safety factor of the integrated structure, if the first safety factor does not meet the slope stability requirements, return to step S1, optimize and preliminarily determine the structural form and size of the slope anchor cable frame and the retaining wall, if they meet the requirements, determine the reinforcement method and reinforcement parameters of the retaining wall anchor cable frame and the slope anchor cable frame that meet the slope stability requirements.

2. A reinforcement method for an anchor cable frame combined retaining wall for an unstable slope according to claim 1, characterized in that: Step S4 specifically includes the following steps: The deep sliding of the slope is verified by introducing the geotechnical mechanics parameters into the generalized model, using the anchor frame reinforcement method, and calculating the second safety factor of the reinforced slope through the limit equilibrium method.

3. The reinforcement method of the anchor cable frame combined retaining wall for unstable slope according to claim 1 is characterized in that: In step S5, the anchor cable frame combined retaining wall is reinforced by using a matrix anchor cable frame embedded in the retaining wall at the foot of the slope for reinforcement, and connected with the slope surface frame anchor cable as a whole.

4. A reinforcement method for an anchor cable frame combined retaining wall for an unstable slope according to any one of claims 1 to 3, characterized in that: The anchoring length of the anchor cable frame is the length of the anchor cable embedded in the stable stratum, and the spacing between the vertical beams and the horizontal beams of the frame is H / n, where H is the height of the retaining wall in the two-dimensional geological generalization model, and n is the number of horizontal beams.

5. A reinforcement method for an anchor cable frame combined retaining wall for an unstable slope according to any one of claims 1 to 3, characterized in that: The reinforcement parameters are wall height, wall thickness, and wall back inclination angle.

6. A reinforcement structure of an anchor cable frame combined retaining wall for an unstable slope, taking a third-level slope as an example, characterized in that: include: A retaining wall disposed in a primary slope, wherein an embedded frame is disposed in the retaining wall, the embedded frame comprising a primary transverse reinforcement rib and a primary vertical reinforcement rib; A secondary slope frame is arranged in the secondary slope, the secondary slope frame comprises secondary transverse reinforcement ribs and secondary vertical reinforcement ribs, and the secondary vertical reinforcement ribs are connected end to end with the primary vertical reinforcement ribs; and a three-level slope frame arranged in the three-level slope, comprising three-level transverse reinforcement ribs and three-level vertical reinforcement ribs, wherein the three-level vertical reinforcement ribs are connected end to end with the two-level vertical reinforcement ribs; The first-level transverse reinforcement ribs and the first-level vertical reinforcement ribs, the second-level transverse reinforcement ribs and the second-level vertical reinforcement ribs, and the third-level transverse reinforcement ribs and the third-level vertical reinforcement ribs are respectively provided with first-level slope anchor cables, second-level slope anchor cables and third-level slope anchor cables, which together constitute a matrix anchor cable frame structure and are embedded in the retaining wall structure at the foot of the slope, integrating the first-level slope, the second-level slope and the third-level slope into an integrated structure, jointly bearing the mountain load and deforming synergistically.

7. The reinforcement structure of the anchor cable frame combined retaining wall for unstable slope according to claim 6, characterized in that: The first-level transverse reinforcement ribs and the first-level vertical reinforcement ribs, the second-level transverse reinforcement ribs and the second-level vertical reinforcement ribs, and the third-level transverse reinforcement ribs and the third-level vertical reinforcement ribs are matched and arranged in multiple pieces, crisscrossed, and the frame vertical beam spacing and the horizontal beam spacing are H / n, wherein H is the height of the retaining wall in the two-dimensional geological generalization model, and n is the number of beams.

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