Composite opposite-pulling type reinforced earth retaining wall structure
By using a geogrid embedded in a soil structure and a drainage design, combined with rigid panels and reinforcing anchors, the problems of slippage and liquefaction in the tension-reinforced soil retaining wall were solved, improving the structural stability and load-bearing capacity and extending its service life.
Patent Information
- Application Number
- CN202520428530.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Existing tie-reinforced soil retaining walls are prone to displacement, cracking, liquefaction, and reduced load-bearing capacity in sandy soil filling, leading to structural damage and threats to traffic safety.
A composite wall panel is formed by using a soil-type embedded solid to fix a multi-layer geogrid, combined with an integrated rigid panel and a modular panel. The soil-type embedded solid and geogrid are used to improve the overall stability, and rainwater is discharged through drainage pipes. Reinforcing anchors are installed to tension the geogrid and allow it to undergo plastic deformation in advance.
It effectively avoids interlayer displacement and liquefaction of the filler, improves load-bearing capacity and service life, ensures driving safety, and prevents leakage of sand filler and deformation of wall panels.
Smart Images
Figure CN223922240U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of road engineering technology, and specifically relates to a composite tie-type reinforced soil retaining wall structure. Background Technology
[0002] Tie-and-tenon reinforced soil retaining walls are composite systems consisting of reinforcing materials, filler material, wall panels, and foundations. Due to their simple construction process, aesthetic appeal, and low cost, they have been widely used in numerous road engineering projects. However, tie-and-tenon reinforced soil retaining wall structures using sand as filler material have the following main disadvantages:
[0003] (1) Under the continuous action of self-weight load and external load, the wall panels are prone to misalignment and gaps, which will lead to leakage of sand and soil fill near the wall panels. This will cause local damage to the tie-type reinforced soil retaining wall and make subsequent maintenance difficult.
[0004] (2) Under the coupled action of rainfall and dynamic load, the filling material inside the retaining wall is prone to liquefaction, which reduces the bearing capacity of the tension-reinforced soil retaining wall and seriously threatens traffic safety.
[0005] (3) When the fill material is sand, the tensioning effect of the geogrid inside the traditional tie-type reinforced soil retaining wall is not good. It cannot produce plastic deformation in advance. During the service of the retaining wall, after the reinforcement material undergoes plastic deformation, the retaining wall panel deforms greatly, which greatly reduces the service life of the retaining wall. Utility Model Content
[0006] To address the above problems, this utility model provides a composite tension-reinforced soil retaining wall structure.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A composite tension-reinforced soil retaining wall structure includes a road surface structure and a retaining wall structure at its base. The retaining wall structure includes internal sand filling material and composite wall panels on its sides. The bottom of the composite wall panels is provided with foundations buried on both sides of an underground trench. The sand filling material is internally embedded with soil-shaped inserts and multiple layers of geogrids laid at intervals from top to bottom. The longitudinal section of the soil-shaped inserts is T-shaped. The middle longitudinal beam of the soil-shaped inserts is used to fix the geogrids. The end of the middle transverse beam of the soil-shaped inserts is connected to the composite wall panels. The base of the soil-shaped inserts is located at the bottom of the sand filling material. The ends of the geogrids extend into the composite wall panels.
[0009] Furthermore, the composite wall panel includes several modular panels and an integrated rigid panel. The modular panels are spliced together from bottom to top to form a prefabricated wall. Adjacent modular panels are inlaid and connected end to end. The end of the geogrid passes through the mating surface of two adjacent modular panels and is connected to the reinforcement anchor fastener. The rigid panel is cast with concrete from bottom to top on the outside of the prefabricated wall. The reinforcement anchor fastener is cast inside the rigid panel and is used to tension the geogrid.
[0010] Furthermore, the soil-shaped embedded body is constructed of concrete from bottom to top. The end of the middle crossbeam of the soil-shaped embedded body is connected to the composite wall panels on both sides. Multiple layers of geogrid are poured at intervals from bottom to top within the longitudinal beams of the soil-shaped embedded body. Horizontally arranged drainage pipes are embedded in the middle crossbeam of the soil-shaped embedded body. Several water inlet pipes are provided at the top of the drainage pipes and are connected to them. The upper end of the water inlet pipes extends to the upper surface of the middle crossbeam of the soil-shaped embedded body. The outlet end of the drainage pipes penetrates and extends to the outside of the composite wall panel.
[0011] Furthermore, the foundation is a strip foundation, which is arranged along the length of the composite wall panel. The bottom of the composite wall panel is provided with a foundation enlargement foot extending into the strip foundation. The foundation enlargement foot is integrally cast with the rigid panel. A gabion ditch is provided on the outside of the strip foundation.
[0012] Furthermore, the geogrid is a biaxially oriented geogrid, and both ends of the biaxially oriented geogrid are connected to the composite wall panels on both sides respectively; both ends of the middle crossbeam of the earth-shaped embedded solid are connected to the composite wall panels on both sides respectively.
[0013] Furthermore, the geogrid is a polypropylene biaxially oriented plastic geogrid, the longitudinal and transverse rib spacing of the biaxially oriented geogrid is 20-40 mm, its longitudinal and transverse tensile strength is not less than 30 kN / m, and its longitudinal and transverse tensile strength at 2% strain is not less than 10.5 kN / m; the concrete strength of the soil-embedded solid is not less than 30 MPa, and the thickness of the soil-embedded solid is not less than 200 mm.
[0014] Furthermore, the reinforcing bar anchor fastener includes a reinforcing bar anchor clamp, an anchor nut, and an anchor bolt. One end of the anchor bolt is connected to the module panel, and the other end passes through the reinforcing bar anchor clamp and is connected to the anchor nut. The reinforcing bar anchor clamp is a split structure, and the end of the biaxial tensile geogrid can be placed between adjacent reinforcing bar anchor clamps.
[0015] Furthermore, the road structure comprises, from top to bottom, a road surface layer, a composite geotextile drainage layer, and a rigid support. The rigid support is cast in concrete on top of the composite wall panel, and both ends of the rigid support extend to the outer side of the composite wall panel. The ends of the rigid support are provided with concave arc-shaped corners.
[0016] Furthermore, the pavement layers, from top to bottom, consist of a rubber-modified asphalt stabilized crushed stone layer, a PCR-modified emulsified asphalt stabilized crushed stone layer, and a flexible asphalt stabilized crushed stone layer; the slope of the composite geotextile drainage layer is not less than 2%, and the composite geotextile drainage layer is laid with short-fiber needle-punched nonwoven geotextile, with a longitudinal tensile strength of not less than 10 kN / m and a puncture strength of not less than 1.8 kN; the rigid abutment is cast from concrete, and the strength of the rigid abutment is not less than 40 MPa.
[0017] Furthermore, the thickness of the rubber-modified asphalt stabilized crushed stone layer is not less than 50 mm, the thickness of the PCR-modified emulsified asphalt stabilized crushed stone layer is not less than 100 mm, and the thickness of the flexible asphalt stabilized crushed stone layer is not less than 80 mm; the thickness of the rigid support is not less than 150 mm, and the central angle of the arc-shaped corner is not less than 120°.
[0018] The technological advancements achieved by this invention compared to existing technologies are as follows:
[0019] This invention utilizes a retaining wall structure with sand-filled material and soil-embedded solids at the bottom of the road structure. A strip foundation is established at the bottom of the composite wall panel. Multiple layers of geogrid are fixed from top to bottom using soil-embedded solids embedded within the sand-filled material, with the ends of the geogrid extending into the composite wall panel. Simultaneously, the ends of the intermediate crossbeams of the soil-embedded solids are connected to the composite wall panel. A composite wall panel is formed by assembling several modular panels from bottom to top and then casting an integral rigid panel on its outer side. The soil-embedded solids, geogrid, and composite wall panel enhance the overall stability of the reinforced soil retaining wall structure, ensuring road traffic safety. This invention effectively prevents interlayer slippage and fill material liquefaction during the service life of the retaining wall, improving the load-bearing capacity and service life of the tension-reinforced soil retaining wall. Attached Figure Description
[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0021] In the attached diagram:
[0022] Figure 1 A structural schematic diagram of a composite tension-reinforced soil retaining wall structure provided for an embodiment of this utility model;
[0023] Figure 2 for Figure 1 Schematic diagram of the sergeant-type embedded solid structure;
[0024] Figure 3 This is a schematic diagram showing the connection between the geogrid, the module panel, and the reinforcing bar anchor fasteners in an embodiment of this utility model.
[0025] Figure 4 for Figure 3 Front view of the connection between the geogrid, module panel, and reinforcing bar anchor fasteners.
[0026] In the diagram: 101-Pavement layer; 102-Composite geotextile drainage layer; 103-Rigid foundation; 1031-Arched corner; 201-Sand filler; 301-Module panel; 302-Rigid panel; 303-Reinforcing anchor fastener; 3031-Reinforcing anchor clamp; 3032-Anchor nut; 3033-Anchor bolt; 304-Foundation foot; 305-Strip foundation; 401-Geogrid; 501-Earth-type embedded solid; 5011-Crossbeam; 5012-Longitudinal beam; 5013-Base; 502-Drainage pipe; 503-Inlet pipe; 601-Gabion ditch. Detailed Implementation
[0027] The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this utility model will be described below with reference to the accompanying drawings.
[0028] like Figure 1 As shown in the figure, a composite tension-reinforced soil retaining wall structure provided by this utility model includes a road structure and a retaining wall structure at its bottom. The retaining wall structure includes sand filling material 201 inside and composite wall panels on its sides. The bottom of the composite wall panels is provided with foundations buried on both sides of the underground trench. The sand filling material 201 is internally embedded with soil-shaped inserts 501 and multiple layers of geogrids 401 laid at intervals from top to bottom. The longitudinal section of the soil-shaped inserts 501 is T-shaped. The middle longitudinal beam 5012 of the soil-shaped inserts 501 is used to fix the geogrids 401. The end of the middle transverse beam 5011 of the soil-shaped inserts 501 is connected to the composite wall panels. The base 5013 of the soil-shaped inserts 501 is set at the bottom of the sand filling material 201. The end of the geogrids 401 extends into the composite wall panels. The multi-layer geogrid is fixed from top to bottom by soil-type embedded solids inside the sand filler. The ends of the geogrid are extended into the composite wall panel for fixation. At the same time, the ends of the middle crossbeams of the soil-type embedded solids are connected to the composite wall panel, thereby improving the overall stability of the reinforced soil retaining wall structure and ensuring road traffic safety.
[0029] As a preferred structure, such as Figure 1 , 3 As shown in Figure 4, the composite wall panel includes several modular panels 301 and an integral rigid panel 302. The modular panels 301 are sequentially spliced from bottom to top to form a prefabricated wall. Adjacent modular panels 301 are interlocked end-to-end. The end of the geogrid 401 passes through the mating surface of two adjacent modular panels 301 and is connected to the reinforcement anchor fastener 303. The rigid panel 302 is cast from bottom to top with concrete on the outside of the prefabricated wall. The reinforcement anchor fastener 303 is cast inside the rigid panel 302 and is used to tension the geogrid 401. During assembly, adjacent modular panels can be connected by mortise and tenon joints to ensure a reliable connection between the upper and lower modular panels. Casting the end of the geogrid inside the rigid panel allows the geogrid to be connected to the composite wall panel as a whole.
[0030] During specific construction, such as Figure 2 As shown, the soil-embedded solid 501 is constructed of concrete from bottom to top. The end of the middle crossbeam 5011 of the soil-embedded solid 501 is connected to the composite wall panels on both sides. Multiple layers of geogrid 401 are poured at intervals from bottom to top within the longitudinal beams 5012 of the soil-embedded solid 501. A horizontally arranged drainage pipe 502 is embedded within the middle crossbeam 5011 of the soil-embedded solid 501. Several inlet pipes 503 are connected to the top of the drainage pipes 502, and the upper ends of the inlet pipes 503 extend to the upper surface of the middle crossbeam 5011 of the soil-embedded solid 501. The outlet end of the drainage pipe 502 penetrates and extends to the outside of the composite wall panel. As the height of the sand filling and composite wall panel increases, the soil-embedded solid and drainage pipes are poured layer by layer. The drainage pipes can drain the accumulated water above the crossbeams to the outside of the composite wall panel, preventing it from stagnating inside the retaining wall and causing interlayer slippage.
[0031] During construction, the foundation is a strip foundation 305, which is arranged along the length of the composite wall panel. The bottom of the composite wall panel has an extended base 304 that extends into the strip foundation 305. The extended base 304 is integrally cast with the rigid panel 302. A gabion ditch 601 is provided on the outer side of the strip foundation 305. Water discharged from the drainage pipe flows downwards into the gabion ditch for timely drainage.
[0032] In specific construction, the geogrid 401 is a biaxially oriented geogrid, and its two ends are connected to the composite wall panels on both sides respectively; the two ends of the middle crossbeam 5011 of the soil-embedded solid 501 are connected to the composite wall panels on both sides respectively. The geogrid 401 is a polypropylene biaxially oriented plastic geogrid, with a longitudinal and transverse rib spacing of 20–40 mm, a longitudinal and transverse tensile strength of not less than 30 kN / m, and a longitudinal and transverse tensile strength of not less than 10.5 kN / m at 2% strain; the concrete strength of the soil-embedded solid 501 is not less than 30 MPa, and the thickness of the soil-embedded solid 501 is not less than 200 mm.
[0033] During specific assembly, such as Figure 3 , 4 As shown, the reinforcement anchor fastener 303 includes a reinforcement anchor clamp 3031, an anchor nut 3032, and an anchor bolt 3033. One end of the anchor bolt 3033 is connected to the module panel 301, and the other end passes through the reinforcement anchor clamp 3031 and is connected to the anchor nut 3032. The reinforcement anchor clamp 3031 is a split structure, and the end of the biaxial geogrid can be placed between adjacent reinforcement anchor clamps. The biaxial geogrid is fixed to the outside of the module panel using the reinforcement anchor fastener, and then tensioned and cast into the interior of the rigid panel.
[0034] In specific embodiments of this utility model, such as Figure 1 As shown, the road structure, from top to bottom, includes a road surface layer 101, a composite geotextile drainage layer 102, and a rigid support 103. The rigid support 103 is cast in concrete on top of the composite wall panel, and both ends of the rigid support 103 extend to the outer side of the composite wall panel. The ends of the rigid support 103 are provided with concave arc-shaped corners 1031, and the central angle of the arc-shaped corners 1031 is not less than 120°. After the rigid support is cast, the arc-shaped corners are cut out, allowing water accumulated on both sides of the road surface to drain obliquely downwards along the arc-shaped corners, and finally seep downwards into the gabion ditch for discharge.
[0035] The pavement layer 101 consists of, from top to bottom, a rubber-modified asphalt stabilized crushed stone layer, a PCR-modified emulsified asphalt stabilized crushed stone layer, and a flexible asphalt stabilized crushed stone layer; the thickness of the rubber-modified asphalt stabilized crushed stone layer is not less than 50 mm, the thickness of the PCR-modified emulsified asphalt stabilized crushed stone layer is not less than 100 mm, and the thickness of the flexible asphalt stabilized crushed stone layer is not less than 80 mm; the thickness of the rigid bearing platform 103 is not less than 150 mm.
[0036] Meanwhile, the slope of the composite geotextile drainage layer 102 is not less than 2%. The composite geotextile drainage layer 102 is made of short-fiber needle-punched nonwoven geotextile, with a longitudinal tensile strength of not less than 10 kN / m and a puncture strength of not less than 1.8 kN. The rigid support 103 is made of concrete with a thickness of not less than 150 mm and a strength of not less than 40 MPa. The soil-type embedded solid 501 is made of concrete with a concrete strength of not less than 30 MPa and a thickness of not less than 200 mm. The drainage pipe 502 is made of PVC / ABS plastic alloy, and short-fiber needle-punched nonwoven geotextile is wrapped at both the pipe inlet and outlet.
[0037] In specific manufacturing, the modular panel 301 has a thickness of not less than 100 mm and a height of not less than 300 mm; the reinforcing bar anchor fastener 303 is made of carbon structural steel Q235; the reinforcing bar anchor clamp 3031 consists of upper and lower parts, and the thickness of the reinforcing bar anchor clamp 3031 is not less than 50 mm; the anchor nut 3032 has a width of not less than 15 mm; the anchor bolt 3033 has a bolt length of not less than 150 mm, a thread outer diameter of not less than 10 mm, and a thread length of not less than 100 mm.
[0038] The specific construction process of this utility model is as follows:
[0039] S1: Before construction, surveying and setting out lines, excavating underground foundation trenches, and using retaining structures for fixation;
[0040] S2: Level the inside of the foundation trench to ensure that the flatness meets the design requirements, and fix strip foundations 305 in the underground foundation trench according to the width of the retaining wall;
[0041] S3: Before the retaining wall filler is laid, the module panel 301 is spliced and fixed on the strip foundation 305, and the module panel is placed vertically.
[0042] S4: Place the mold 501 for embedding solids and pour the base 5013 for embedding solids. After the base 5013 has been cured to meet the strength requirements, use sand filler 201 to spread and compact it, and ensure that the height after compaction is consistent with the top height of the module panel 301.
[0043] S5: After the sand and soil filling inside the retaining wall is compacted, the reinforcing anchor fastener 303 is installed on the outside of the module panel 301, and the biaxial tensile geogrid 401 is laid according to the design plan.
[0044] S6: After the biaxial geogrid is laid, it is clamped by the reinforcement anchor clamp 3031 and tensioned and fixed by the anchor nut 3032.
[0045] S7: Adopt a layered construction method, repeating S3 to S6 until the composite tie-type reinforced soil retaining wall structure is constructed to the height of the crossbeam 5011 of the soil-embedded solid 501;
[0046] S8: When casting the crossbeam 5011 of the embedded solid 501, install the drainage pipe 502 and wrap the pipe inlet and outlet with geotextile.
[0047] S9: Repeat S3 to S6 until the composite tie-reinforced soil retaining wall structure is constructed to the design height;
[0048] S10: Install the mold on the outside of the module panel and cast the foundation enlarged foot 304 and the integrated rigid panel 302;
[0049] S11: Cast the rigid support 103 on the top of the retaining wall structure and cut the arc-shaped corner 1031;
[0050] S12: After the rigid bearing cap 103 has been cured to the strength required, the composite geotextile drainage layer 102 is laid.
[0051] S13: After the composite geotextile drainage layer is laid, pavement layer 101 is laid in layers.
[0052] This completes the construction of the composite tie-reinforced soil retaining wall structure.
[0053] In summary, this utility model has the advantages of compact structure and high overall strength of the retaining wall, and its specific beneficial effects are as follows:
[0054] 1. A soil-type embedded solid is poured inside the retaining wall structure to fix the biaxial tensile geogrid, preventing horizontal sliding of the biaxial tensile geogrid during the service of the retaining wall and reducing the plastic deformation of the geogrid under vehicle loads; at the same time, a composite wall panel is formed by using an integrated rigid panel and assembled modular panels to prevent lateral displacement between the wall panels from causing cracks that cause the sand fill to be lost, thereby significantly improving the durability of the tension-reinforced soil retaining wall structure.
[0055] 2. By incorporating a pavement layer and a composite geotextile drainage layer into the pavement structure, the pavement layer effectively prevents rainwater infiltration through the waterproof layer, while the composite geotextile drainage layer quickly drains rainwater from the structure. The curved corners and gabion ditches work together to prevent rainwater from accumulating at the toe of the wall and penetrating deep into the wall. Drainage pipes are installed inside the earth-shaped embedded solid to drain rainwater from inside the wall, preventing the sand and soil filling inside the retaining wall from liquefying under the action of vehicles and rainwater, improving the load-bearing capacity of the retaining wall structure, and further ensuring driving safety.
[0056] 3. By setting reinforcement anchor fasteners on the outside of the module panel, the reinforcement is tensioned during construction using the reinforcement anchor fasteners. This allows the plastic deformation of the reinforcement to be pre-emptively utilized without affecting the strength, reducing the deformation amplitude of the biaxial tensile geogrid during the service life of the retaining wall, avoiding wall bulging, and extending the service life of the tension-reinforced soil retaining wall.
[0057] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. A composite type counter-pulled reinforced soil retaining wall structure, characterized by: The application relates to a retaining wall structure including a pavement structure and a bottom thereof, wherein the retaining wall structure comprises internally filled sand soil fillers and composite wall panels on the sides of the fillers, the bottom of the composite wall panels is provided with foundations embedded on both sides of an underground foundation groove, the sand soil fillers are internally embedded with I-shaped embedding bodies and multiple layers of geogrids which are spaced and laid from top to bottom, the longitudinal section of the I-shaped embedding body is in the shape of an I, the middle longitudinal beam of the I-shaped embedding body is used for fixing the geogrids, the ends of the middle transverse beams of the I-shaped embedding body are connected with the composite wall panels, and the bases of the I-shaped embedding body are arranged at the bottom of the sand soil fillers; and the ends of the geogrids extend into the composite wall panels.
2. The composite type counterfort reinforced soil retaining wall structure according to claim 1, characterized in that: The composite wall panel comprises a plurality of module panels and a rigid panel, the plurality of module panels are sequentially spliced into an assembled wall body from bottom to top, the ends of two adjacent module panels are embedded and connected, the ends of the geogrids penetrate through the matching surfaces of the two adjacent module panels and are connected with tendon anchoring fasteners, the rigid panel is poured with concrete from bottom to top on the outer side of the assembled wall body, and the tendon anchoring fasteners are poured into the rigid panel and used for tensioning the geogrids.
3. The composite tensile-arched reinforced soil retaining wall structure according to claim 2, characterized in that: The I-shaped embedding body is poured with concrete from bottom to top, the ends of the middle transverse beams of the I-shaped embedding body are connected with the two-side composite wall panels, the multiple layers of geogrids are spaced and poured into the longitudinal beams of the I-shaped embedding body from bottom to top, the middle transverse beams of the I-shaped embedding body are internally embedded with horizontally arranged drainage pipelines, the top of the drainage pipeline is provided with a plurality of water inlets which are connected with the drainage pipeline, the upper ends of the water inlets extend to the upper surfaces of the middle transverse beams of the I-shaped embedding body, and the outlet ends of the drainage pipelines penetrate through and extend to the outer side of the composite wall panel.
4. The composite tensile-arched reinforced soil retaining wall structure according to claim 1, characterized in that: The foundation is a strip foundation which is arranged along the length direction of the composite wall panel, the bottom of the composite wall panel is provided with a foundation enlarged foot which extends into the strip foundation, and the foundation enlarged foot is integrally poured and formed with the rigid panel; and the outer side of the strip foundation is provided with a gabion trench.
5. The composite tensile-arched reinforced soil retaining wall structure according to claim 3, characterized in that: The geogrid is a biaxial tensile geogrid, the two ends of the biaxial tensile geogrid are connected with the two-side composite wall panels respectively, and the two ends of the middle transverse beams of the I-shaped embedding body are connected with the two-side composite wall panels respectively.
6. The composite tensile-arched reinforced soil retaining wall structure according to claim 5, characterized in that: The geogrid is a polypropylene biaxial tensile plastic geogrid, the longitudinal and transverse rib spacing of the biaxial tensile geogrid is 20-40 mm, the longitudinal and transverse tensile strength of the biaxial tensile geogrid is not less than 30 kN / m, and the longitudinal and transverse tensile strength of the biaxial tensile geogrid at 2% strain is not less than 10.5 kN / m; the concrete strength of the I-shaped embedding body is not less than 30 MPa, and the thickness of the I-shaped embedding body is not less than 200 mm.
7. The composite tensile-arched reinforced soil retaining wall structure according to claim 6, characterized in that: The tendon anchoring fastener comprises a tendon anchoring clamp, an anchoring nut and an anchoring bolt, one end of the anchoring bolt is connected with the module panel, the other end of the anchoring bolt penetrates through the tendon anchoring clamp and is connected with the anchoring nut, the tendon anchoring clamp is a split structure, and the ends of the biaxial tensile geogrid can be arranged between the upper and lower tendon anchoring clamps.
8. The composite tensile-arched reinforced soil retaining wall structure according to any one of claims 1-7, characterized in that: The road surface structure comprises, from top to bottom, a road surface layer, a composite geotextile drainage layer and a rigid support, the rigid support is poured by concrete on the top of the composite wall panel, and the two ends of the rigid support extend to the outside of the composite wall panel; the end of the rigid support is provided with a concave arc-shaped corner.
9. The composite tensile-arched reinforced soil retaining wall structure according to claim 8, characterized in that: The road surface layer comprises, from top to bottom, a rubber modified asphalt stabilized macadam layer, a PCR modified emulsified asphalt stabilized macadam layer and a flexible asphalt stabilized macadam layer; the slope of the composite geotextile drainage layer is not less than 2%, the composite geotextile drainage layer is laid by short fiber needle-punched non-woven geotextile, the longitudinal breaking strength of which is not less than 10 kN / m, and the bursting strength is not less than 1.8 kN; the rigid support is poured by concrete, and the strength of the rigid support is not less than 40 MPa.
10. The composite tensile-arched reinforced soil retaining wall structure according to claim 9, characterized in that: The thickness of the rubber modified asphalt stabilized macadam layer is not less than 50 mm, the thickness of the PCR modified emulsified asphalt stabilized macadam layer is not less than 100 mm, the thickness of the flexible asphalt stabilized macadam layer is not less than 80 mm, the thickness of the rigid support is not less than 150 mm, and the central angle of the arc-shaped corner is not less than 120°.