Anchor cable anchoring structure and construction method

Abstract

The invention discloses an anchor cable anchoring structure and a construction method, and belongs to the technical field of building construction.According to the technical scheme, a first shaft is arranged between two vertical plates, a first guide wheel is arranged on the first shaft, first guide rods are arranged at the two ends of the upper portions of the two vertical plates, and the two first guide rods on the different vertical plates are sleeved with first supports; a second shaft is arranged between the two first supports, a second guide wheel is arranged on the second shaft, the first guide rods are provided with through holes, second guide rods are arranged in the through holes, the two second guide rods are connected through a second support, a third shaft is arranged between the two second supports, a third guide wheel is arranged on the third shaft, a stand column is arranged on the two vertical plates, and a mounting plate is arranged on the stand column. A grouting pipe is arranged on the mounting plate; the first guide rod is sleeved with a first spring, the second guide rod is sleeved with a second spring, the first steel strand bypasses the lower portion of the second guide wheel, and the second steel strand bypasses the lower portion of the third guide wheel. The anchor cable anchoring structure and the construction method have the beneficial effect that the anchor cable anchoring structure and the construction method are provided.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to an anchor cable anchoring structure and a construction method. Background Art

[0002] The anchor cable anchoring structure is an important geotechnical engineering reinforcement measure and plays an important role in building construction. When constructing high-rise buildings in cities, it is necessary to excavate deeper foundation pits. As the depth of the foundation pit increases, the lateral pressure of the surrounding soil will gradually increase, which can easily cause the foundation pit wall to shift, deform, or even collapse. The anchor cable anchoring structure can resist the lateral pressure of the soil by fixing one end in the stable soil around the foundation pit and connecting the other end to the foundation pit support structure. Through the reinforcement effect of the anchoring structure, the deformation and stress concentration of the structure during use can be reduced, the deformation of the foundation pit wall can be reduced, and the safety of the foundation pit construction can be ensured.

[0003] The anchor cable anchoring structure generally consists 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, of which the steel strands are set in a single strand and then connected at the bottom through a conical sleeve. In actual use, sometimes a single steel strand will be separated from the conical sleeve, affecting the stability of the anchoring structure. Summary of the invention

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

[0005] The present invention is achieved through the following measures: an anchor cable anchoring structure, characterized in that it comprises two symmetrically arranged vertical plates, an axis 1 is arranged between the two vertical plates, a guide wheel 1 is rotatably arranged on the axis 1, guide rods 1 are fixedly arranged at both ends above the two vertical plates, two guide rods 1 on different vertical plates are sleeved with brackets 1, an axis 2 is arranged between the two brackets 1, guide wheels 2 are rotatably arranged on the axis 2, through holes are arranged on the guide rods 1, guide rods 2 are slidably arranged in the through holes, two guide rods 2 above the same vertical plate are connected by brackets 2, an axis 3 is arranged between the two brackets 2, guide wheels 3 are rotatably arranged on the axis 3, columns are fixedly arranged on the two vertical plates and located outside the guide rods 1, mounting plates are fixedly arranged on the columns, and grouting pipes are concentrically arranged on the mounting plates; The guide rod 1 is sleeved with a spring 1, the upper end of which is fixed to the bracket 1, and the lower end is fixed to the vertical plate; the guide rod 2 is sleeved with a spring 2, the lower end of which is fixed to the guide rod 1, and the upper end is fixed to the guide rod 2 (a circular plate for mounting the spring 2 is fixedly provided on the upper part of the guide rod 2); The axis of the first axis is perpendicular to the axis of the second axis, and the axis of the second axis is perpendicular to the axis of the third axis; It also includes a steel strand 1 and a steel strand 2, wherein the steel strand 1 passes under the guide wheel 2 and both ends are located outside the anchor cable hole, and the steel strand 2 passes under the guide wheel 3 and both ends are located outside the anchor cable hole; the guide wheels 1, 2 and 3 are all provided with an annular groove matching the steel strand; A tightening sleeve is slidably arranged in the grouting pipe, and a plurality of strip-shaped openings are opened in the circumferential direction on the upper part of the side wall of the tightening sleeve. Grouting is injected into the grouting pipe, driving the tightening sleeve to move downward until the lower end extends out of the grouting pipe and presses the guide wheel three and the guide wheel two, so that the guide wheel two presses the steel strand one, and the guide wheel three presses the steel strand two, at which time the strip-shaped opening on the grouting pipe partially exposes the grouting pipe; The upper end of the grouting pipe is provided with a threaded joint, and the threaded joint is located inside the anchor cable hole.

[0006] Furthermore, a limiting ring 1 is provided on the two brackets 2, and the steel strand 1 passes through the limiting ring 1; A second limiting ring is arranged on the mounting plate, and the second steel strand passes through the second limiting ring.

[0007] Furthermore, it also includes a plurality of positioning rings fixed on the grouting pipe, the positioning ring is provided with four threading holes cooperating with steel strand 1 and steel strand 2, and the outer wall of the positioning ring is opened with a notch 1 connected with the threading holes.

[0008] It also includes a plurality of locking wire rings fixed on the grouting pipe, the locking wire rings are provided with four locking wire holes, a notch two connected to the locking wire holes is opened on the side wall of the locking wire ring, and the distance from the axis of the locking wire hole to the axis of the grouting pipe is smaller than the distance from the axis of the threading hole to the axis of the grouting pipe; A rotating ring is coaxially arranged on the locking ring through a threaded connection, a fan-shaped groove for placing the steel strand is opened on the rotating ring, and a limiting strip for blocking the second gap is arranged at the open end of the fan-shaped groove.

[0009] Furthermore, it also includes a conical sleeve, a protective tube is coaxially arranged on the large end of the conical sleeve, the upper end surface of the protective tube is higher than the second limiting ring, and the inner wall of the conical sleeve is fixed on the vertical plate. Furthermore, a plurality of grouting holes are arranged on the side wall of the grouting pipe.

[0010] This embodiment provides a construction method of an anchor cable anchoring structure, which is characterized by: S1. After cleaning the anchor hole, select the grouting pipe according to the depth and inner diameter of the anchor hole; S2, weld the lower end of the grouting pipe to the mounting plate, and sequentially sleeve the positioning ring and the locking ring with the rotating ring onto the grouting pipe, and weld and fix it after reaching the designated position; S3, make one end of the steel strand one pass through a limiting ring one and go around from the bottom of the guide wheel two to extend from the other limiting ring one, make one end of the steel strand two pass through a limiting ring two and go around from the bottom of the guide wheel three to extend from the other limiting ring two; extend from one end of the tapered sleeve into the anchor cable hole until the tapered sleeve reaches the bottom of the anchor cable hole and both ends of the two steel strands are exposed from the anchor cable hole; S4, installing a sealing pipe in the grouting pipe, and sealing 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 through a threaded connection, place the tightening sleeve in the grouting pipe, and then fill it with slurry. The slurry drives the tightening sleeve to move downward until the lower end extends out of the grouting pipe and presses the guide wheel three and the guide wheel two; when the guide wheel two presses the steel strand one and the guide wheel three presses the steel strand two, the slurry flows out from the strip-shaped opening. After a certain period of time, the sealing pipe is pulled out and the grouting is continued; S6. After the grouting is completed, the grouting pipe is sealed and the anchor plate is installed to fix the steel strands via the clips.

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

[0012] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention are: two steel strands are wound on corresponding guide wheels, and the steel strands located at the inner end of the tapered sleeve are not independent, so that it is difficult for the steel strands to detach from the tapered sleeve alone; guide wheel two is slidably connected relative to guide wheel one, and guide wheel three is slidably connected relative to guide wheel two, so that the distance between the three can be reduced by slurry, thereby realizing the compression of the steel strands and thus achieving the fixation of the steel strands. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings used in the embodiments. Obviously, the drawings listed below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 yes Figure 1 A partial enlarged view of the middle A; Figure 3 It is a schematic diagram of the structure with the protective tube removed; Figure 4 yes Figure 3 A partial enlarged view of point B in the middle; Figure 5 It is a schematic diagram of the structure of each guide wheel (the strip opening on the tightening sleeve does not expose the grouting pipe); Figure 6 It is a schematic diagram of the structure of the wire locking ring and the rotating ring; Figure 7 It is a structural schematic diagram of the tightening sleeve; Figure 8 It is a schematic diagram of the structure of the guide wheel 1 and its related parts; Fig. 9 It is a schematic diagram of the structure of guide wheel 2 and its related parts; Fig.10 It is a schematic diagram of the structure of guide wheel three and its related parts; Fig.11 It is a schematic diagram of the structure of the positioning ring; Fig.12 It is a schematic diagram of the structure of the anchor plate and the clip.

[0015] In the attached drawings, the components represented by the reference numerals are as follows: 1. vertical plate; 101. axis 1; 2. guide wheel 1; 3. guide rod 1; 4. bracket 1; 401. axis 2; 5. guide wheel 2; 6. guide rod 2; 601. round plate; 7. bracket 2; 701. axis 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 2; 16. Limiting ring 1; 17. Limiting ring 2; 18. Tightening sleeve; 1801. Strip mouth; 19. Positioning ring; 1901. Threading hole; 20. Conical sleeve; 2001. Protective sleeve; 21. Wire locking ring; 2101. Wire locking hole; 2102. Annular groove; 22. Rotating ring; 2201. Fan-shaped groove; 2202. Limiting strip; 2203. Threaded sleeve; 23. Anchor plate; 24. Clip. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0017] See also Figure 1-Figure 12, an anchor cable anchoring structure, characterized in that it comprises two symmetrically arranged vertical plates 1, an axis 101 is arranged between the two vertical plates 1, a guide wheel 102 is rotatably arranged on the axis 101, guide rods 3 are fixedly arranged at both ends of the upper parts of the two vertical plates 1, two guide rods 3 on different vertical plates 1 are sleeved with brackets 4, an axis 2 401 is arranged between the two brackets 4, a guide wheel 2 5 is rotatably arranged on the axis 2 401, through holes are arranged on the guide rods 3, guide rods 2 6 are slidably arranged in the through holes, two guide rods 2 6 above the same vertical plate 1 are connected by brackets 2 7, an axis 3 701 is arranged between the two brackets 2 7, a guide wheel 3 8 is rotatably arranged on the axis 3 701, columns 9 are fixedly arranged on the two vertical plates 1 and located on the outer sides of the guide rods 3, a 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 1 3, the upper end of the spring 14 is fixed on the bracket 1 4, and the lower end is fixed on the vertical plate 1. A spring 2 15 is sleeved on the guide rod 2 6, the lower end of the spring 2 15 is fixed on the guide rod 1 3, and the upper end is fixed on the guide rod 2 6 (a circular plate 601 for mounting the spring 2 15 is fixedly provided on the upper part of the guide rod 2 6); The axis of the first axis 101 is perpendicular to the axis of the second axis 401, and the axis of the second axis 401 is perpendicular to the axis of the third axis 701; It also includes a steel strand 12 and a steel strand 13. The steel strand 12 is passed under the guide wheel 2 5 and both ends are located outside the anchor cable hole. The steel strand 13 is passed under the guide wheel 3 8 and both ends are located outside the anchor cable hole. The guide wheel 1 102, the guide wheel 2 5 and the guide wheel 3 8 are all provided with an annular groove matching the steel strand. A tightening sleeve 18 is slidably arranged in the grouting pipe 11, and a plurality of strip-shaped openings 1801 are opened in the circumferential direction on the upper part of the side wall of the tightening sleeve 18. Grouting is injected into the grouting pipe 11, driving the tightening sleeve 18 to move downward 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 1 12, and the guide wheel 3 8 presses the steel strand 2 13. At this time, the strip-shaped opening 1801 on the grouting pipe 11 is partially exposed from the grouting pipe 11; The upper end of the grouting pipe 11 is provided with a threaded joint, which is located inside the anchor hole.

[0018] A limiting ring 16 is provided on the two brackets 2 7, and the steel strand 12 passes through the limiting ring 16; A second limiting ring 17 is provided on the mounting plate 10 , and the second steel strand 13 passes through the second limiting ring 17 .

[0019] It also includes a plurality of positioning rings 19 fixed on the grouting pipe 11, and the positioning rings 19 are provided with four threading holes 1901 cooperating with the steel strands 12 and 13, and the outer wall of the positioning rings 19 is opened with a gap 1 connected to the threading holes 1901.

[0020] It also includes a plurality of locking wire rings 21 fixed on the grouting pipe 11, and the locking wire ring 21 is provided with four locking wire holes 2101. A notch 2 connected to the locking wire hole 2101 is opened on the side wall of the locking wire ring 21, and the distance from the axis of the locking wire hole 2101 to the axis of the grouting pipe 11 is smaller than the distance from the axis of the threading hole 1901 to the axis of the grouting pipe 11. The locking ring is coaxially provided with a rotating ring 22 through a threaded connection, and a fan-shaped groove 2201 for placing the steel strand is opened on the rotating ring 22, and a limit strip 2202 for blocking the second gap is provided at the open end of the fan-shaped groove 2201. A threaded sleeve 2203 is coaxially provided on the rotating ring 22, and an annular groove 2102 matching the threaded sleeve 2203 is provided on the locking ring 21.

[0021] It also includes a conical sleeve 20, a protective sleeve 2001 is coaxially arranged at the large end of the conical sleeve 20, the upper end surface of the protective sleeve 2001 is higher than the limiting ring 17, and the inner wall of the conical sleeve 20 is fixed on the vertical plate 1. A plurality of 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 hole, select the grouting pipe 11 according to the depth and inner diameter of the anchor hole; S2, weld the lower end of the grouting pipe 11 to the mounting plate 10, and sequentially sleeve the positioning ring 19 and the locking ring with the rotating ring 22 on the grouting pipe 11, and weld and fix them after reaching the designated position; S3, one end of the steel strand 12 passes through a limiting ring 16 and passes under the guide wheel 2 5 to extend from the other limiting ring 16, and one end of the steel strand 2 13 passes through a limiting ring 2 17 and passes under the guide wheel 3 8 to extend from the other limiting ring 2 17; one end of the conical sleeve 20 extends into the anchor hole until the conical sleeve 20 reaches the bottom of the anchor hole and both ends of the two steel strands are exposed from the anchor hole; S4, installing a sealing tube into the grouting tube 11, and sealing all grouting holes 1101 on the side wall of the grouting tube 11 through the sealing tube; S5. Install an extension pipe at the upper end of the grouting pipe 11 through a threaded connection, place the top sleeve 18 in the grouting pipe 11, and then fill it with slurry. The slurry drives the top sleeve 18 to move downward until the lower end extends out of the grouting pipe 11 and presses the guide wheel 3 8 and the guide wheel 2 5; when the guide wheel 2 5 presses the steel strand 1 12 and the guide wheel 3 8 presses the steel strand 2 13, the slurry flows out from the strip opening 1801. After a certain period of time, the sealing pipe is pulled out and the grouting is continued; S6, after the grouting is completed, the grouting pipe 11 is blocked, and the anchor plate 23 is installed to fix the steel strand through the clamping piece 24. The anchor plate 23 and the clamping piece 24 are prior art, and the specific structure is not repeated here.

[0023] The above are only 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 in the protection scope of the present invention.

Claims

1. An anchor cable anchoring structure, characterized in that: The invention comprises two symmetrically arranged vertical plates, an axis 1 is arranged between the two vertical plates, a guide wheel 1 is rotatably arranged on the axis 1, guide rods 1 are fixedly arranged at both ends above the two vertical plates, brackets 1 are sleeved on two guide rods 1 on different vertical plates, an axis 2 is arranged between the two brackets 1, guide wheels 2 are rotatably arranged on the axis 2, through holes are arranged on the guide rods 1, guide rods 2 are slidably arranged in the through holes, two guide rods 2 above the same vertical plate are connected by brackets 2, an axis 3 is arranged between the two brackets 2, guide wheels 3 are rotatably arranged on the axis 3, columns are fixedly arranged on the two vertical plates and located outside the guide rods 1, mounting plates are fixedly arranged on the columns, and grouting pipes are concentrically arranged on the mounting plates; The guide rod 1 is sleeved with a spring 1, the upper end of which is fixed to the bracket 1, and the lower end is fixed to the vertical plate; the guide rod 2 is sleeved with a spring 2, the lower end of which is fixed to the guide rod 1, and the upper end is fixed to the guide rod 2; The axis of the first axis is perpendicular to the axis of the second axis, and the axis of the second axis is perpendicular to the axis of the third axis; It also includes a steel strand 1 and a steel strand 2, wherein the steel strand 1 passes under the guide wheel 2 and both ends are located outside the anchor cable hole, and the steel strand 2 passes under the guide wheel 3 and both ends are located outside the anchor cable hole; the guide wheels 1, 2 and 3 are all provided with an annular groove matching the steel strand; A tightening sleeve is slidably arranged in the grouting pipe, and a plurality of strip-shaped openings are opened in the circumferential direction on the upper part of the side wall of the tightening sleeve. Grouting is injected into the grouting pipe, driving the tightening sleeve to move downward until the lower end extends out of the grouting pipe and presses the guide wheel three and the guide wheel two, so that the guide wheel two presses the steel strand one, and the guide wheel three presses the steel strand two, at which time the strip-shaped opening on the grouting pipe partially exposes the grouting pipe; The upper end of the grouting pipe is provided with a threaded joint, and the threaded joint is located inside the anchor cable hole.

2. The anchor cable anchoring structure according to claim 1, characterized in that: A limiting ring 1 is provided on the two brackets 2, and the steel strand 1 passes through the limiting ring 1; A second limiting ring is arranged on the mounting plate, and the second steel strand passes through the second limiting ring.

3. The anchor cable anchoring structure according to claim 2, characterized in that: It also includes a plurality of positioning rings fixed on the grouting pipe, the positioning rings are provided with four threading holes matching with the first and second steel strands, and the outer wall of the positioning rings is provided with a notch one connected with the threading holes.

4. The anchor cable anchoring structure according to claim 3, characterized in that: It also includes a plurality of locking wire rings fixed on the grouting pipe, the locking wire rings are provided with four locking wire holes, a notch two connected to the locking wire holes is opened on the side wall of the locking wire ring, and the distance from the axis of the locking wire hole to the axis of the grouting pipe is smaller than the distance from the axis of the threading hole to the axis of the grouting pipe; A rotating ring is coaxially arranged on the locking ring through a threaded connection, a fan-shaped groove for placing the steel strand is opened on the rotating ring, and a limiting strip for blocking the second gap is arranged at the open end of the fan-shaped groove.

5. The anchor cable anchoring structure according to claim 4, characterized in that: It also includes a conical sleeve, a protective sleeve is coaxially arranged on the large end of the conical sleeve, the upper end surface of the protective sleeve is higher than the second limiting ring, and the inner wall of the conical sleeve is fixed on the vertical plate.

6. The anchor cable anchoring structure according to claim 5, characterized in that: A plurality of grouting holes are arranged on the side wall of the grouting pipe.

7. A construction method of the anchor cable anchoring structure according to claim 6, characterized in that: S1. After cleaning the anchor hole, select the grouting pipe according to the depth and inner diameter of the anchor hole; S2, weld the lower end of the grouting pipe to the mounting plate, and sequentially sleeve the positioning ring and the locking ring with the rotating ring onto the grouting pipe, and weld and fix it after reaching the designated position; S3, make one end of the steel strand one pass through a limiting ring one and go around from the bottom of the guide wheel two to extend from the other limiting ring one, make one end of the steel strand two pass through a limiting ring two and go around from the bottom of the guide wheel three to extend from the other limiting ring two; extend from one end of the tapered sleeve into the anchor cable hole until the tapered sleeve reaches the bottom of the anchor cable hole and both ends of the two steel strands are exposed from the anchor cable hole; S4, installing a sealing pipe in the grouting pipe, and sealing 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 through a threaded connection, place the tightening sleeve in the grouting pipe, and then fill it with slurry. The slurry drives the tightening sleeve to move downward until the lower end extends out of the grouting pipe and presses the guide wheel three and the guide wheel two; when the guide wheel two presses the steel strand one and the guide wheel three presses the steel strand two, the slurry flows out from the strip-shaped opening. After a certain period of time, the sealing pipe is pulled out and the grouting is continued; S6. After the grouting is completed, the grouting pipe is sealed and the anchor plate is installed to fix the steel strands via the clips.

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