Soil nailing wall supporting structure

Abstract

The invention discloses a soil nailing wall supporting structure which comprises a branch slope protection body, a plurality of limiting grooves are formed in the branch slope protection body, a limiting soil nail is inserted in each limiting groove, a reinforcing mesh is arranged on the slope surface of the branch slope protection body, and a limiting disc is arranged in each limiting groove. The side, facing the groove bottom of the limiting groove, of each limiting disc is fixedly connected with a limiting nail, and the limiting nails can be nailed into a groove bottom soil layer of the limiting groove. The side, away from the groove bottom of the limiting groove, of each limiting disc is concentrically and fixedly connected with a limiting pipe, the side, facing the groove bottom of the limiting groove, of each limiting soil nail is coaxially and fixedly connected with a limiting column, and the limiting columns are in threaded connection with the corresponding limiting pipes. Limiting between the limiting soil nails and the supporting slope protection body can be achieved, and when concrete is poured into the limiting grooves, the risk that the limiting soil nails shift is effectively reduced, so that the supporting effect is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of soil nailing wall support, and particularly to a soil nailing wall support structure. Background Technology

[0002] Soil nailing walls are a common type of foundation pit support structure, widely used in urban underground engineering, slope stabilization, tunnel excavation, and other projects. Soil nailing walls enhance the overall stability of the soil by inserting steel bars (soil nails) into the soil and combining them with a shotcrete surface layer, forming a composite structural system that works in conjunction with the undisturbed soil.

[0003] Soil nailing wall support structures in related technologies typically include a support slope, multiple limiting grooves on the support slope, limiting soil nails installed in each limiting groove, a steel mesh on the support slope, multiple limiting soil nails fixedly connected to the steel mesh, concrete poured into the limiting grooves to fix the limiting soil nails to the support slope, and a concrete layer sprayed on the slope surface of the support slope, which covers the steel mesh.

[0004] However, in the soil nailing wall support structure of the relevant technology, there is a lack of a limiting structure between the limiting soil nail and the supporting slope. When concrete is poured into the limiting groove, there is a risk of displacement of the limiting soil nail, which will affect the support effect and needs to be improved. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a soil nailing wall support structure that can limit the movement of soil nails between the soil nails and the slope being supported, thereby reducing the risk of soil nail displacement and ensuring the support effect.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a soil nailing wall support structure, including a support slope, wherein a plurality of limiting grooves are provided on the support slope, a limiting soil nail is inserted into each limiting groove, and a steel mesh is provided on the slope surface of the support slope, a limiting plate is provided in each limiting groove, and a limiting nail is fixedly connected to the side of each limiting plate facing the bottom of the limiting groove, and the limiting nail can be driven into the bottom soil layer of the limiting groove; Each of the limiting discs is concentrically fixedly connected to a limiting tube on the side away from the bottom of the limiting groove, and each of the limiting soil nails is coaxially fixedly connected to a limiting column on the side facing the bottom of the limiting groove, and the limiting column is threadedly connected to the corresponding limiting tube.

[0007] Optionally: Each of the limiting disks is provided with a support groove on the side away from the bottom of the limiting groove, and the opening of the support groove is located inside the corresponding limiting tube. Each of the limiting disks is provided with a plurality of rectangular support holes on its sidewall. The plurality of support holes are arranged at equal intervals along the circumference of the limiting disk, and the plurality of support holes are respectively connected to the corresponding support groove. A rectangular locking pin is slidably inserted into each of the support holes, and a control component is provided on each of the limiting plates. The control component is used to control the corresponding multiple locking pins to extend synchronously and to drive the multiple locking pins into the inner wall soil layer of the limiting groove.

[0008] Optionally: each of the control components includes a control disc slidably connected to the corresponding support groove, and a control column is coaxially fixedly connected to one end of each limiting post away from the corresponding limiting soil nail, and the control column can push the corresponding control disc to move; Each of the control panels is provided with a control ramp, and each of the locking pins is provided with a guide ramp. The guide ramps are engaged with the corresponding control ramps so that the locking pins can extend under the combined action of the control ramps and the corresponding guide ramps.

[0009] Optionally: Each of the limiting soil nails is movably fitted with a limiting nut at one end away from the corresponding limiting post. The limiting nut is used to weld and fix it to the steel mesh. Each of the limiting soil nails is provided with a limiting thread. When the limiting post is tightened with the corresponding limiting tube, the limiting thread engages with the corresponding limiting nut to achieve limiting at both ends of the limiting soil nail.

[0010] Optionally, each of the limiting soil nails has a hexagonal stud fixedly connected to one end away from the corresponding limiting post, and the hexagonal stud can be used in conjunction with an external torque gun.

[0011] Optionally, each of the limiting soil nails is provided with a plurality of straightening parts, which are arranged at equal intervals along the axial direction of the corresponding limiting soil nail, and the plurality of straightening parts can respectively abut against the inner wall of the corresponding limiting groove to ensure that the limiting soil nail is centered in the corresponding limiting groove.

[0012] Optionally, each of the straightening sections includes multiple arc-shaped straightening reinforcing bars, the two ends of which are respectively welded and fixed to the corresponding limiting soil nails, and the multiple straightening reinforcing bars are arranged at equal intervals along the circumference of the corresponding limiting soil nails.

[0013] Optionally, the straightening reinforcing bars of two adjacent straightening sections are arranged in a staggered manner.

[0014] Optionally, each of the limiting soil nails is provided with a reinforcing groove, through which concrete can enter and solidify to form a reinforcing column.

[0015] Optionally, a number of steel rods are fixedly connected to the steel mesh, and the steel rods can be driven into the slope soil layer of the supported slope.

[0016] In summary, the present invention has the following beneficial effects: This soil nailing wall support structure can effectively limit the movement of soil nails and the supporting slope. When pouring concrete into the limiting groove, it effectively reduces the risk of displacement of the limiting soil nails, thus ensuring the support effect of the soil nailing wall support structure. At the same time, the limiting soil nails can be limited at both ends, improving the connection stability between the limiting soil nails and the supporting slope, and further enhancing the support effect of the soil nailing wall support structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the embodiment; Figure 2 This is a cross-sectional view of an embodiment; Figure 3 This is a schematic diagram of the structure of the limiting soil nail in the embodiment; Figure 4 This is a cross-sectional view of the soil nail in the embodiment; Figure 5 yes Figure 4 An enlarged schematic diagram of region A in the middle.

[0018] Attached reference numerals: 1. Slope support; 2. Limiting groove; 3. Limiting soil nail; 4. Reinforcing mesh; 5. Limiting disc; 6. Limiting nail; 7. Limiting tube; 8. Limiting column; 9. Limiting nut; 10. Limiting thread; 11. Hexagonal stud; 12. Support groove; 13. Supporting hole; 14. Locking nail; 15. Control component; 151. Control disc; 152. Control column; 153. Control slope; 154. Guide slope; 16. Straightening part; 161. Straightening reinforcement; 17. Reinforcing groove; 18. Reinforcing bar nail. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5A soil nailing wall support structure includes a support slope 1. Multiple limiting grooves 2 are inclinedly arranged on the slope surface of the support slope 1. Each limiting groove 2 is fitted with a limiting soil nail 3, and a steel mesh 4 is provided on the slope surface of the support slope 1. Each limiting groove 2 is provided with a limiting disc 5, and each limiting disc 5 is fixedly connected to a limiting nail 6 on the side facing the bottom of the limiting groove 2. The limiting nail 6 can be driven into the soil layer at the bottom of the limiting groove 2, thereby fixing the limiting disc 5.

[0021] Reference Figure 2 , Figure 3 , Figure 4 Each limiting plate 5 is concentrically fixedly connected to a limiting tube 7 on the side away from the bottom of the limiting groove 2, and each limiting soil nail 3 is coaxially fixedly connected to a limiting column 8 on the side facing the bottom of the limiting groove 2. The limiting column 8 is threadedly connected to the corresponding limiting tube 7 to achieve the limiting of the end of the limiting soil nail 3.

[0022] Reference Figure 3 , Figure 4 Each soil nail 3 is movably fitted with a limiting nut 9 at one end away from the corresponding limiting post 8, and the limiting nut 9 is used to weld and fix it to the steel mesh 4. Each soil nail 3 is provided with a limiting thread 10, and when the limiting post 8 is tightened with the corresponding limiting tube 7, the limiting thread 10 and the corresponding limiting nut 9 are threadedly engaged to achieve the limiting of both ends of the soil nail 3.

[0023] Reference Figure 3 , Figure 4 Each limiting soil nail 3 has a hexagonal stud 11 fixedly connected to one end away from the corresponding limiting post 8. The hexagonal stud 11 can be used with an external torque gun to facilitate the workers to control the limiting soil nail 3 to rotate quickly, thereby improving the assembly efficiency of the limiting soil nail 3.

[0024] The soil nailing wall support structure can limit the two ends of the soil nail 3, and also improve the connection stability between the soil nail 3 and the support slope 1. When pouring concrete into the limiting groove 2, it can effectively reduce the risk of displacement of the soil nail 3, so as to ensure the support effect of the soil nailing wall support structure.

[0025] Reference Figure 4 , Figure 5 Each limiting plate 5 has a support groove 12 on the side away from the bottom of the limiting groove 2, and the opening of the support groove 12 is located inside the corresponding limiting tube 7. Each limiting plate 5 has a plurality of rectangular support holes 13 on its side wall. The plurality of support holes 13 are arranged at equal intervals along the circumference of the limiting plate 5, and the plurality of support holes 13 are connected to the corresponding support groove 12.

[0026] Reference Figure 4 , Figure 5A rectangular locking pin 14 is slidably inserted into each support hole 13. A control element 15 is provided on each limiting plate 5. The control element 15 is used to control the synchronous extension of the corresponding multiple locking pins 14 and to drive the multiple locking pins 14 into the inner wall soil layer of the limiting groove 2, so as to improve the connection stability between the limiting soil nail 3 and the supporting slope 1.

[0027] Reference Figure 4 , Figure 5 Each control component 15 includes a control disk 151 slidably connected to the corresponding support groove 12. Each limiting post 8 has a control post 152 coaxially fixedly connected to one end away from the corresponding limiting soil nail 3. The control post 152 can push the corresponding control disk 151 toward the bottom of the limiting groove 2.

[0028] Reference Figure 4 , Figure 5 Each control panel 151 is provided with a control ramp 153, and each locking pin 14 is provided with a guide ramp 154. The guide ramp 154 ​​is engaged with the corresponding control ramp 153 so that the locking pin 14 can extend under the combined action of the control ramp 153 and the corresponding guide ramp 154.

[0029] Reference Figure 3 Each limiting soil nail 3 is provided with multiple straightening parts 16. The multiple straightening parts 16 are arranged at equal intervals along the axial direction of the corresponding limiting soil nail 3, and the multiple straightening parts 16 can respectively abut against the inner wall of the corresponding limiting groove 2 to ensure that the limiting soil nail 3 is centered in the corresponding limiting groove 2, thereby further reducing the risk of displacement of the limiting soil nail 3.

[0030] Reference Figure 3 Each straightening section 16 includes multiple arc-shaped straightening reinforcing bars 161. The two ends of the multiple straightening reinforcing bars 161 are welded and fixed to the corresponding limiting soil nails 3, and the multiple straightening reinforcing bars 161 are arranged at equal intervals along the circumference of the corresponding limiting soil nails 3. At the same time, the straightening reinforcing bars 161 of two adjacent straightening sections 16 are staggered to improve the straightening effect.

[0031] Reference Figure 3 Each soil nail 3 is provided with a reinforcing groove 17, and concrete can enter the reinforcing groove 17 and solidify to form a reinforcing column, thereby improving the connection stability between the soil nail 3 and the slope support 1, and thus improving the pull-out resistance of the soil nail 3.

[0032] Reference Figure 3 A number of steel rods 18 are fixedly connected to the steel mesh 4, and the steel rods 18 can be driven into the slope soil layer of the slope body 1, thereby improving the connection stability between the steel mesh 4 and the slope body 1, so as to ensure the support effect of the soil nailing wall support structure.

[0033] The construction method of the soil nailing wall support structure in this embodiment is as follows: Multiple limiting grooves 2 are evenly opened on the slope surface of the slope support 1. The steel mesh 4 is laid on the slope surface of the slope support 1, and the mesh of the steel mesh 4 is aligned with the groove opening of the limiting groove 2. At the same time, multiple steel nails 18 are driven into the slope soil layer of the slope support 1.

[0034] Subsequently, tape is wrapped around the limiting disc 5 to prevent the locking pin 14 from protruding from the corresponding support hole 13. Then, multiple limiting soil nails 3 are inserted into the corresponding limiting grooves 2 to ensure that the limiting column 8 is threadedly connected to the corresponding limiting tube 7 and that the control column 152 is not in contact with the corresponding control disc 151.

[0035] Next, the hexagonal stud 11 is hammered to drive the multiple limiting nails 6 on the limiting disc 5 into the bottom soil layer of the limiting groove 2. At this time, the limiting nut 9 is welded and fixed to the reinforcing mesh 4. Subsequently, the hexagonal stud 11 is used with a torque gun to drive the limiting soil nail 3 to rotate. After the limiting soil nail 3 rotates 2-3 times, the limiting thread 10 begins to engage with the limiting nut 9, and the control post 152 abuts against the corresponding control disc 151.

[0036] As the limiting soil nail 3 rotates, the locking nail 14 extends under the action of the control inclined surface 153 and the guide inclined surface 154, so that the locking nail 14 is driven into the inner wall soil layer of the limiting groove 2 until the hexagonal stud 11 abuts against the limiting nut 9, thus completing the assembly of the limiting soil nail 3.

[0037] Subsequently, concrete is poured into the limiting groove 2 until the limiting groove 2 is filled with concrete. Then, concrete is sprayed onto the slope surface of the support slope 1. After the concrete has cured, it is covered with steel mesh 4 and hexagonal studs 11, thereby realizing the construction of the soil nailing wall support structure.

[0038] The specific embodiments are merely illustrative of the present invention and are not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A soil nailing wall support structure, comprising a support slope (1), wherein a plurality of limiting grooves (2) are provided on the support slope (1), and a limiting soil nail (3) is inserted into each of the limiting grooves (2), and a steel mesh (4) is provided on the slope surface of the support slope (1), characterized in that: Each of the limiting grooves (2) is provided with a limiting plate (5), and each of the limiting plates (5) is fixedly connected to a limiting nail (6) on the side facing the bottom of the limiting groove (2), and the limiting nail (6) can be driven into the bottom soil layer of the limiting groove (2); Each of the limiting discs (5) is concentrically fixedly connected to a limiting tube (7) on the side away from the bottom of the limiting groove (2), and each of the limiting soil nails (3) is coaxially fixedly connected to a limiting column (8) on the side facing the bottom of the limiting groove (2), and the limiting column (8) is threadedly connected to the corresponding limiting tube (7).

2. The soil nailing wall support structure according to claim 1, characterized in that: Each of the limiting disks (5) has a support groove (12) on the side away from the bottom of the limiting groove (2), and the opening of the support groove (12) is located inside the corresponding limiting tube (7). Each of the limiting disks (5) has a plurality of rectangular support holes (13) on its sidewall. The plurality of support holes (13) are arranged at equal intervals along the circumference of the limiting disk (5), and the plurality of support holes (13) are connected to the corresponding support groove (12). A rectangular locking pin (14) is slidably inserted into each of the support holes (13), and a control element (15) is provided on each of the limiting discs (5). The control element (15) is used to control the corresponding multiple locking pins (14) to extend synchronously and to drive the multiple locking pins (14) into the inner wall soil layer of the limiting groove (2).

3. The soil nailing wall support structure according to claim 2, characterized in that: Each of the control components (15) includes a control disk (151) slidably connected in the corresponding support groove (12), and a control column (152) is coaxially fixedly connected to one end of each limiting post (8) away from the corresponding limiting soil nail (3), and the control column (152) can push the corresponding control disk (151) to move. Each of the control panels (151) is provided with a control ramp (153), and each of the locking pins (14) is provided with a guide ramp (154). The guide ramp (154) engages with the corresponding control ramp (153) so that the locking pin (14) can extend under the combined action of the control ramp (153) and the corresponding guide ramp (154).

4. The soil nailing wall support structure according to claim 1, characterized in that: Each of the limiting soil nails (3) has a limiting nut (9) movably fitted at one end away from the corresponding limiting post (8). The limiting nut (9) is used to weld and fix to the steel mesh (4). Each of the limiting soil nails (3) is provided with a limiting thread (10). When the limiting post (8) is tightened with the corresponding limiting tube (7), the limiting thread (10) and the corresponding limiting nut (9) are threadedly engaged to achieve the limiting of both ends of the limiting soil nail (3).

5. The soil nailing wall support structure according to claim 4, characterized in that: Each of the limiting soil nails (3) is fixedly connected to a hexagonal stud (11) at one end away from the corresponding limiting post (8), and the hexagonal stud (11) can be used in conjunction with an external torque gun.

6. The soil nailing wall support structure according to claim 1, characterized in that: Each of the limiting soil nails (3) is provided with a plurality of straightening parts (16). The plurality of straightening parts (16) are arranged at equal intervals along the axial direction of the corresponding limiting soil nail (3), and the plurality of straightening parts (16) can respectively abut against the inner wall of the corresponding limiting groove (2) to ensure that the limiting soil nail (3) is centered in the corresponding limiting groove (2).

7. A soil nailing wall support structure according to claim 6, characterized in that: Each of the straightening parts (16) includes a plurality of arc-shaped straightening steel bars (161), the two ends of the plurality of straightening steel bars (161) are respectively welded and fixed to the corresponding limiting soil nails (3), and the plurality of straightening steel bars (161) are arranged at equal intervals along the circumference of the corresponding limiting soil nails (3).

8. The soil nailing wall support structure according to claim 7, characterized in that: The straightening steel bars (161) of two adjacent straightening parts (16) are arranged in a staggered manner.

9. A soil nailing wall support structure according to claim 1, characterized in that: Each of the limiting soil nails (3) is provided with a reinforcing groove (17), and concrete can enter the reinforcing groove (17) and solidify to form a reinforcing column.

10. A soil nailing wall support structure according to claim 1, characterized in that: A number of steel bar studs (18) are fixedly connected to the steel mesh (4), and the steel bar studs (18) can be driven into the slope soil layer of the support slope (1).

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