Anchoring structure for an anchor cable and method of construction

Abstract

The application discloses an anchor cable anchoring structure and a construction method, and belongs to the technical field of building construction, and the technical scheme is that shaft one is arranged between two vertical plates, a guide wheel one is arranged on the shaft one, guide rods one are arranged at the upper ends of the two vertical plates, two guide rods one on different vertical plates are sleeved with brackets one, shaft two is arranged between the two brackets one, a guide wheel two is arranged on the shaft two, through holes are arranged on the guide rods one, guide rods two are arranged in the through holes, the two guide rods two are connected through brackets two, shaft three is arranged between the two brackets two, a guide wheel three is arranged on the shaft three, vertical columns are arranged on the two vertical plates, mounting plates are arranged on the vertical columns, and grouting pipes are arranged on the mounting plates; spring one is sleeved on the guide rods one, spring two is sleeved on the guide rods two, steel wire one is wound from the lower side of the guide wheel two, and steel wire two is wound from the lower side of the guide wheel three.The application has the beneficial effects that the anchor cable anchoring structure and the construction method are provided.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, and specifically relates to an anchor cable anchoring structure and construction method. Background Technology

[0002] Cable anchoring structures are an important geotechnical engineering reinforcement measure, playing a crucial role in building construction. In urban high-rise building construction, deep foundation pits need to be excavated. As the depth of the pit increases, the lateral pressure on the surrounding soil gradually increases, easily leading to displacement, deformation, or even collapse of the pit walls. Cable anchoring structures, by fixing one end to stable soil around the pit and connecting the other end to the pit support structure, can resist the lateral pressure of the soil. Through the reinforcement effect of the anchoring structure, deformation and stress concentration during use can be reduced, minimizing pit wall deformation and ensuring the safety of pit construction.

[0003] Anchor cable anchoring structures generally consist of three main parts: the anchor head, the free section, and the anchoring section. Both the free section and the anchoring section have several steel strands, each installed individually, with their bottom ends connected by a tapered sleeve. In practical use, sometimes a single steel strand may detach from the tapered sleeve, affecting the stability of the anchoring structure. Summary of the Invention

[0004] The purpose of this invention is to provide an anchor cable anchoring structure and construction method.

[0005] This invention is achieved through the following measures: an anchor cable anchoring structure, characterized in that it includes two symmetrically arranged vertical plates, a shaft I is arranged between the two vertical plates, a guide wheel I is rotatably arranged on the shaft I, guide rod I is fixedly arranged at both ends of the upper part of the two vertical plates, a bracket I is sleeved on the two guide rod I on different vertical plates, a shaft II is arranged between the two bracket I, a guide wheel II is rotatably arranged on the shaft II, a through hole is provided on each guide rod I, a guide rod II is slidably arranged in the through hole, two guide rod II on the same vertical plate are connected by a bracket II, a shaft III is arranged between the two bracket II, a guide wheel III is rotatably arranged on the shaft III, and a column is fixedly arranged on each of the two vertical plates and located outside the guide rod I, an mounting plate is fixedly arranged on the column, and a grouting pipe is concentrically arranged on the mounting plate; A spring is sleeved on the first guide rod. The upper end of the spring is fixed on the first bracket and the lower end is fixed on the upright plate. A spring is sleeved on the second guide rod. The lower end of the spring is fixed on the first guide rod and the upper end is fixed on the second guide rod (a circular plate for mounting the spring is fixedly provided on the upper part of the second guide rod). The axis of the first shaft is perpendicular to the axis of the second shaft, and the axis of the second shaft is perpendicular to the axis of the third shaft. It also includes steel strand one and steel strand two. Steel strand one passes under the guide wheel two and both ends are located outside the anchor cable hole. Steel strand two passes under the guide wheel three and both ends are located outside the anchor cable hole. Each of the guide wheels one, two and three is provided with annular grooves that cooperate with the steel strands. A tightening sleeve is slidably installed inside the grouting pipe. Several strip-shaped openings are circumferentially opened on the upper part of the side wall of the tightening sleeve. Grout is injected into the grouting pipe, which drives the tightening sleeve to move down until the lower end extends out of the grouting pipe and presses the guide wheel three and guide wheel two. The guide wheel two presses the steel strand one, and the guide wheel three presses the steel strand two. At this time, the strip-shaped openings on the grouting pipe are exposed. The upper end of the grouting pipe is provided with a threaded joint, which is located inside the anchor cable hole.

[0006] Furthermore, limiting rings are provided on the two brackets, and the steel strand passes through the limiting rings. A second limiting ring is provided on the mounting plate, and the second steel strand passes through the second limiting ring.

[0007] Furthermore, it also includes several positioning rings fixed on the grouting pipe. The positioning rings are provided with four threading holes that cooperate with steel strand one and steel strand two. The outer wall of the positioning rings has a notch one that communicates with the threading holes.

[0008] It also includes several locking rings fixed on the grouting pipe. Each locking ring has four locking holes. The side wall of the locking ring has a notch that communicates with the locking holes. The distance from the axis of the locking hole to the axis of the grouting pipe is less than the distance from the axis of the thread hole to the axis of the grouting pipe. A rotating ring is concentrically arranged on the locking ring via a threaded connection. The rotating ring has a fan-shaped groove for placing steel strands. A limiting strip is provided at the open end of the fan-shaped groove to block the second notch.

[0009] Furthermore, it also includes a conical sleeve, the large end of which is concentrically provided with a protective sleeve, the upper end face of which is higher than the second limiting ring, and the inner wall of the conical sleeve is fixed to the upright plate. Furthermore, the sidewall of the grouting pipe is provided with several grouting holes.

[0010] This embodiment provides a construction method for an anchor cable anchoring structure, characterized in that: S1. After cleaning the anchor cable holes, select the grouting pipe according to the depth and inner diameter of the anchor cable holes; S2. Weld the lower end of the grouting pipe to the mounting plate, and then sequentially attach the positioning ring and the locking ring with the rotating ring to the grouting pipe. Weld and fix it after it reaches the designated position. S3. Pass one end of steel strand one through one limiting ring one and pass under the guide wheel two to extend out from the other limiting ring one; pass one end of steel strand two through one limiting ring two and pass under the guide wheel three to extend out from the other limiting ring two; insert one end of the conical sleeve into the anchor cable hole until the conical sleeve reaches the bottom of the anchor cable hole and both ends of the two steel strands are exposed in the anchor cable hole; S4. Install a sealing pipe into the grouting pipe and seal all grouting holes on the side wall of the grouting pipe through the sealing pipe; S5. Install an extension pipe at the upper end of the grouting pipe via a threaded connection. Place the tightening sleeve inside the grouting pipe, and then fill it with grout. The grout will cause the tightening sleeve to move down until its lower end extends out of the grouting pipe and presses down on guide rollers three and two. When guide roller two presses down on steel strand one and guide roller three presses down on steel strand two, the grout will flow out from the strip opening. After maintaining this position for a certain period of time, pull out the sealing pipe and continue grouting. S6. After grouting is completed, seal the grouting pipe and install anchor plates to fix the steel strands with clamps.

[0011] In addition, since the anchor cable is divided into a free section and an anchored section, only a positioning ring needs to be installed in the free section.

[0012] The beneficial effects of the technical solution provided by the embodiments of the present invention are as follows: two steel strands are wound on corresponding guide wheels, and the steel strands located at the inner end of the conical sleeve are not independent, making it difficult for the steel strands to detach from the conical sleeve on their own; guide wheel two is slidably connected to guide wheel one and guide wheel three is slidably connected to guide wheel two, so that the distance between the three can be reduced by slurry, thereby compressing the steel strands and fixing them. Attached Figure Description

[0013] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings listed below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 yes Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a schematic diagram of the structure after removing the protective cylinder; Figure 4 yes Figure 3 A magnified view of a section at point B in the middle; Figure 5 This is a structural diagram of each guide wheel (the strip opening on the top sleeve does not expose the grouting pipe). Figure 6 This is a schematic diagram of the structure of the locking ring and the rotating ring; Figure 7 This is a schematic diagram of the tightening sleeve structure; Figure 8 This is a structural schematic diagram of the guide wheel and its related components; Figure 9 This is a structural schematic diagram of guide wheel 2 and its related components; Figure 10 This is a structural schematic diagram of the guide wheel 3 and its related components; Figure 11 This is a schematic diagram of the positioning ring structure; Figure 12 This is a structural diagram of the anchor plate and clamping plate.

[0015] The components represented by each number in the attached diagram are listed below: 1. Vertical plate; 101. Shaft 1; 2. Guide wheel 1; 3. Guide rod 1; 4. Bracket 1; 401. Shaft 2; 5. Guide wheel 2; 6. Guide rod 2; 601. Circular plate; 7. Bracket 2; 701. Shaft 3; 8. Guide wheel 3; 9. Column; 10. Mounting plate; 11. Grouting pipe; 1101. Grouting hole; 12. Steel strand 1; 13. Steel strand 2; 14. Spring 1 15. Spring II; 16. Limiting Ring I; 17. Limiting Ring II; 18. Tightening Sleeve; 1801. Strip-shaped Opening; 19. Positioning Ring; 1901. Thread Hole; 20. Conical Sleeve; 2001. Protective Sleeve; 21. Locking Ring; 2101. Locking Hole; 2102. Annular Groove; 22. Rotating Ring; 2201. Fan-shaped Groove; 2202. Limiting Strip; 2203. Threaded Sleeve; 23. Anchor Plate; 24. Clamping Plate. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0017] See Figures 1-12An anchor cable anchoring structure, characterized in that it includes two symmetrically arranged vertical plates 1, a shaft 101 is arranged between the two vertical plates 1, a guide wheel 102 is rotatably arranged on the shaft 101, guide rods 3 are fixedly arranged at both ends of the upper part of the two vertical plates 1, brackets 4 are sleeved on the two guide rods 3 on different vertical plates 1, a shaft 401 is arranged between the two brackets 4, a guide wheel 5 is rotatably arranged on the shaft 401, a through hole is provided on each guide rod 3, a guide rod 6 is slidably arranged in the through hole, two guide rods 6 above the same vertical plate 1 are connected by a bracket 7, a shaft 701 is arranged between the two brackets 7, a guide wheel 8 is rotatably arranged on the shaft 701, a column 9 is fixedly arranged on each of the two vertical plates 1 and located outside the guide rods 3, an mounting plate 10 is fixedly arranged on the column 9, and a grouting pipe 11 is concentrically arranged on the mounting plate 10; A spring 14 is sleeved on the guide rod 3. The upper end of the spring 14 is fixed on the bracket 4 and the lower end is fixed on the upright plate 1. A spring 25 is sleeved on the guide rod 6. The lower end of the spring 25 is fixed on the guide rod 3 and the upper end is fixed on the guide rod 6 (a circular plate 601 for mounting the spring 25 is fixedly installed on the upper part of the guide rod 6). The axis of shaft 101 is perpendicular to the axis of shaft 2401, and the axis of shaft 2401 is perpendicular to the axis of shaft 3701. It also includes steel strand 12 and steel strand 13. Steel strand 12 passes under the guide wheel 25 and both ends are located outside the anchor cable hole. Steel strand 13 passes under the guide wheel 38 and both ends are located outside the anchor cable hole. Guide wheel 102, guide wheel 25 and guide wheel 38 are all provided with annular grooves that cooperate with the steel strands. A tightening sleeve 18 is slidably installed inside the grouting pipe 11. Several strip-shaped openings 1801 are circumferentially opened on the upper side wall of the tightening sleeve 18. Grouting is injected into the grouting pipe 11, which drives the tightening sleeve 18 to move down until the lower end extends out of the grouting pipe 11 and presses the guide wheel 3 8 and the guide wheel 2 5, so that the guide wheel 2 5 presses the steel strand 12 and the guide wheel 3 8 presses the steel strand 2 13. At this time, the strip-shaped openings 1801 on the grouting pipe 11 are partially exposed. The upper end of the grouting pipe 11 is provided with a threaded joint, which is located inside the anchor cable hole.

[0018] Limiting rings 16 are set on the two brackets 27, and steel strands 12 pass through the limiting rings 16; A limit ring 2 17 is provided on the mounting plate 10, and the steel strand 2 13 passes through the limit ring 2 17.

[0019] It also includes several positioning rings 19 fixed on the grouting pipe 11. The positioning rings 19 are provided with four wire holes 1901 that cooperate with the first steel strand 12 and the second steel strand 13. The outer wall of the positioning rings 19 has a notch that communicates with the wire holes 1901.

[0020] It also includes several locking rings 21 fixed on the grouting pipe 11. The locking ring 21 is provided with four locking holes 2101. The side wall of the locking ring 21 has a notch that communicates with the locking holes 2101. The distance from the axis of the locking hole 2101 to the axis of the grouting pipe 11 is less than the distance from the axis of the thread hole 1901 to the axis of the grouting pipe 11. A rotating ring 22 is concentrically mounted on the locking ring via a threaded connection. The rotating ring 22 has a sector-shaped groove 2201 for placing the steel strand. A limiting strip 2202 is provided at the open end of the sector-shaped groove 2201 to seal the notch. A threaded sleeve 2203 is concentrically mounted on the rotating ring 22, and an annular groove 2102 is provided on the locking ring 21 to mate with the threaded sleeve 2203.

[0021] It also includes a tapered sleeve 20, with a protective sleeve 2001 concentrically arranged at the large end of the tapered sleeve 20. The upper end face of the protective sleeve 2001 is higher than the limiting ring 17, and the inner wall of the tapered sleeve 20 is fixed on the vertical plate 1. Several grouting holes 1101 are provided on the side wall of the grouting pipe 11.

[0022] A construction method for an anchor cable anchoring structure, characterized in that: S1. After cleaning the anchor cable hole, select grouting pipe 11 according to the depth and inner diameter of the anchor cable hole; S2. Weld the lower end of the grouting pipe 11 to the mounting plate 10, and then sequentially attach the positioning ring 19 and the locking ring with the rotating ring 22 to the grouting pipe 11. Weld and fix them after they reach the designated position. S3. Pass one end of steel strand 12 through one limiting ring 16 and pass under the guide wheel 2 5 to extend out through another limiting ring 16; pass one end of steel strand 2 13 through one limiting ring 2 17 and pass under the guide wheel 3 8 to extend out through another limiting ring 2 17; insert one end of the tapered sleeve 20 into the anchor cable hole until the tapered sleeve 20 reaches the bottom of the anchor cable hole and both ends of the two steel strands are exposed in the anchor cable hole; S4. Install a sealing pipe into the grouting pipe 11 and seal all grouting holes 1101 on the side wall of the grouting pipe 11 through the sealing pipe. S5. Install an extension pipe at the upper end of the grouting pipe 11 via a threaded connection. Place the tightening sleeve 18 inside the grouting pipe 11, and then fill it with grout. The grout will cause the tightening sleeve 18 to move down until its lower end extends out of the grouting pipe 11 and presses the guide wheel 3 8 and guide wheel 2 5. When the guide wheel 2 5 presses the steel strand 12 and the guide wheel 3 8 presses the steel strand 2 13, the grout will flow out from the strip-shaped opening 1801. After maintaining this position for a certain period of time, pull out the sealing pipe and continue grouting. S6. After grouting is completed, the grouting pipe 11 is sealed, and the anchor plate 23 is installed to fix the steel strand through the clamp 24. The anchor plate 23 and the clamp 24 are existing technologies, and their specific structures will not be described in detail here.

[0023] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An anchor cable anchoring structure, characterized in that, The device includes two symmetrically arranged upright plates, with a shaft I between them. A guide wheel I is rotatably mounted on the shaft I. Guide rods I are fixedly mounted at both ends of the upper part of the two upright plates. A bracket I is sleeved on the two guide rods I on different upright plates. A shaft II is arranged between the two brackets I. A guide wheel II is rotatably mounted on the shaft II. Each guide rod I has a through hole, and a guide rod II is slidably mounted in each through hole. The two guide rods II on the same upright plate are connected by a bracket II. A shaft III is arranged between the two brackets II. A guide wheel III is rotatably mounted on the shaft III. A column is fixedly mounted on each of the two upright plates and outside the guide rods I. An installation plate is fixedly mounted on the column, and a grouting pipe is concentrically mounted on the installation plate. A spring is sleeved on the first guide rod. The upper end of the spring is fixed on the first bracket and the lower end is fixed on the upright plate. A spring is sleeved on the second guide rod. The lower end of the spring is fixed on the first guide rod and the upper end is fixed on the second guide rod. The axis of the first shaft is perpendicular to the axis of the second shaft, and the axis of the second shaft is perpendicular to the axis of the third shaft. It also includes steel strand one and steel strand two. Steel strand one passes under the guide wheel two and both ends are located outside the anchor cable hole. Steel strand two passes under the guide wheel three and both ends are located outside the anchor cable hole. Each of the guide wheels one, two and three is provided with annular grooves that cooperate with the steel strands. A tightening sleeve is slidably installed inside the grouting pipe. Several strip-shaped openings are circumferentially opened on the upper part of the side wall of the tightening sleeve. Grout is injected into the grouting pipe, which drives the tightening sleeve to move down until the lower end extends out of the grouting pipe and presses the guide wheel three and guide wheel two. The guide wheel two presses the steel strand one, and the guide wheel three presses the steel strand two. At this time, the strip-shaped openings on the grouting pipe are exposed. The upper end of the grouting pipe is provided with a threaded joint, which is located inside the anchor cable hole; Limiting rings are provided on the two brackets, and the steel strand passes through the limiting rings. A second limiting ring is provided on the mounting plate, and the second steel strand passes through the second limiting ring. It also includes several positioning rings fixed on the grouting pipe. The positioning rings are provided with four through holes that cooperate with steel strand one and steel strand two. The outer wall of the positioning rings is provided with a notch one that communicates with the through holes. It also includes several locking rings fixed on the grouting pipe. Each locking ring has four locking holes. The side wall of the locking ring has a notch that communicates with the locking holes. The distance from the axis of the locking hole to the axis of the grouting pipe is less than the distance from the axis of the thread hole to the axis of the grouting pipe. A rotating ring is concentrically arranged on the locking ring via a threaded connection. The rotating ring has a fan-shaped groove for placing steel strands. A limiting strip is provided at the open end of the fan-shaped groove to block the second notch. It also includes a conical sleeve, the large end of which is concentrically provided with a protective sleeve, the upper end face of which is higher than the second limiting ring, and the inner wall of the conical sleeve is fixed to the vertical plate. The side wall of the grouting pipe is provided with several grouting holes; A construction method for the anchor cable anchoring structure includes: S1. After cleaning the anchor cable holes, select the grouting pipe according to the depth and inner diameter of the anchor cable holes; S2. Weld the lower end of the grouting pipe to the mounting plate, and then sequentially attach the positioning ring and the locking ring with the rotating ring to the grouting pipe. Weld and fix it after it reaches the designated position. S3. Pass one end of steel strand one through one limiting ring one and pass under the guide wheel two to extend out from the other limiting ring one; pass one end of steel strand two through one limiting ring two and pass under the guide wheel three to extend out from the other limiting ring two; insert one end of the conical sleeve into the anchor cable hole until the conical sleeve reaches the bottom of the anchor cable hole and both ends of the two steel strands are exposed in the anchor cable hole; S4. Install a sealing pipe into the grouting pipe and seal all grouting holes on the side wall of the grouting pipe through the sealing pipe; S5. Install an extension pipe at the upper end of the grouting pipe via a threaded connection. Place the tightening sleeve inside the grouting pipe, and then fill it with grout. The grout will cause the tightening sleeve to move down until its lower end extends out of the grouting pipe and presses down on guide rollers three and two. When guide roller two presses down on steel strand one and guide roller three presses down on steel strand two, the grout will flow out from the strip opening. After maintaining this position for a certain period of time, pull out the sealing pipe and continue grouting. S6. After grouting is completed, seal the grouting pipe and install anchor plates to fix the steel strands with clamps.

Images