CN222045825U

CN222045825U - A prestressed anchor cable reinforcement device for the bottom plate of a mine tunnel

Info

Publication number: CN222045825U
Application number: CN202420829805.6U
Authority: CN
Inventors: 姜宏; 崔超超; 章翔峰; 雷震; 白宇; 朱智杰; 韩恒飞; 丁文杰; 王晨云
Original assignee: Xinjiang University
Current assignee: Xinjiang University
Priority date: 2024-04-22
Filing date: 2024-04-22
Publication date: 2024-11-22
Anticipated expiration: 2034-04-22

Abstract

The utility model discloses a prestressed anchor cable reinforcement device for bottom plate of mine tunnel, which relates to the technical field of bottom drum prevention and control of mine tunnel. The device is arranged on a rock layer, wherein a first drilling hole is opened inside the rock layer, and a second drilling hole is opened at the upper end of the rock layer. The anchor cable body and the rigging are fixed by cooperating with a wedge-shaped piece through a casing assembly arranged therein, and the wedge-shaped piece is sleeved on the outer side of the anchor cable body through the arranged wedge-shaped piece, and the wedge-shaped piece rotates with the anchor cable body and is threadedly connected with the casing body. As the wedge-shaped piece extends into the interior of the casing body, the enlarged tail of the inclined tube props up the outer side of the casing body, and the casing assembly is tightened inside the round tube of the rigging. The rigging and the casing assembly rotate with the anchor cable body, and the anchor cable body is mixed and combined with the anchoring agent, and the spiral sheet is mixed and combined with the stable cement slurry, so as to improve the fastening force. The aperture of the first drilling hole is small, the length of the second drilling hole is short, the drilling difficulty is low, the installation speed is fast, the device structure is simple, and the installation is convenient.

Description

Mine tunnel bottom plate anchor up-injection type prestress anchor cable reinforcing device

Technical Field

The utility model relates to the technical field of mine roadway floor heave prevention and treatment, in particular to a mine roadway bottom plate anchor upper injection type prestress anchor cable reinforcing device.

Background

In mine engineering, the safety and stability of an underground roadway are important for guaranteeing the life and property safety of production and workers, however, due to the influence of geological conditions, roadway structures and mining activities, roadway bottom plates are often extruded, deformed and damaged in various forms, and the operation of mines and the safety of workers are seriously threatened, so that an anchor-under-roadway-top-pouring type pre-stress anchor cable reinforcing device for the mine roadway bottom plates is designed.

Chinese patent publication No.: CN 203189049U, disclosing: the utility model provides a mine tunnel bottom plate anchor up-pouring type prestressed anchorage cable reinforcing apparatus, this mine tunnel bottom plate anchor up-pouring type prestressed anchorage cable reinforcing apparatus, use the anchor rope to consolidate the tunnel bottom plate, because the anchor rope can crooked, the anchor rope of arbitrary length can all stir the resin anchoring agent in the bottom plate drilling, can provide effectual anchor for the tunnel bottom plate of arbitrary geological conditions, realize in time, initiative support, control tunnel floor heave, but this mine tunnel bottom plate anchor up-pouring type prestressed anchorage cable reinforcing apparatus, the diameter of stirring head is great, drilling diameter requirement is high, the duration that leads to drilling operation is longer, installation effectiveness has been reduced, and rely on anchor rope and resin anchoring agent to combine to promote reinforcement effect, reinforcement means is comparatively single, fastening effect is relatively poor.

Disclosure of Invention

The utility model aims to provide an anchor up-injection type pre-stressed anchor cable reinforcing device under a mine roadway bottom plate, which can solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a mine tunnel bottom plate anchor is notes formula prestressed anchorage cable reinforcing apparatus on down, sets up on the stratum, first drilling has been seted up to the inside of stratum, second drilling has been seted up to the upper end of stratum, first drilling's inside packing has the anchoring agent, second drilling's inside packing has firm grout, first drilling's inside is provided with the anchor rope body, the upper end of anchor rope body is provided with the installed part, the outside of anchor rope body is provided with the rigging, the upper end of rigging is provided with the sleeve pipe subassembly, the inside of sleeve pipe subassembly is provided with the wedge.

Preferably, the rigging comprises a limiting plate, a round pipe, a sealing plate, a spiral sheet, a grouting pipe, a grouting hole and a limiting ring, wherein the round pipe is fixedly connected to the lower end of the limiting plate, the sealing plate is fixedly connected to the lower end of the round pipe, the spiral sheet is fixedly connected to the outer side of the round pipe, the grouting pipe is fixedly connected to the lower end of the limiting plate, the grouting hole is formed in the upper end of the limiting plate, and the limiting ring is fixedly connected to the upper end of the limiting plate.

Preferably, the inner diameter of the first drilling hole is larger than the diameter of the anchor cable body, the inner diameter of the second drilling hole is larger than the diameter of the spiral sheet, the inner diameter of the second drilling hole is smaller than the diameter of the limiting plate, and the sealing plate is matched with the second drilling hole.

Preferably, the sleeve assembly comprises a sleeve body, a groove, an inclined plane and a long groove, wherein the lower end of the sleeve body is provided with the groove, the inner wall of the sleeve body is provided with the inclined plane, and the outer side of the sleeve body is provided with the long groove.

Preferably, the wedge comprises an inclined tube and an anti-skid ridge, and the anti-skid ridge is fixedly connected to the inner part of the inclined tube.

Preferably, the inclined plane is matched with the inclined tube, and threads are formed on the outer wall of the inclined tube and the inner wall of the sleeve body.

Preferably, the grouting pipe penetrates through the sealing plate and the limiting plate, and the groove is matched with the limiting ring.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the anchor rope body is inserted into the circular tube through the first drilling hole and the second drilling hole, the anchor rope body is inserted into the first drilling hole, the rigging is inserted into the second drilling hole, the anchoring agent is injected into the first drilling hole through the grouting pipe, and the cement slurry is injected through the grouting hole, so that the reinforcement is facilitated;

According to the utility model, the anchor rope body is fixed with the rigging through the arranged sleeve component, the wedge component is sleeved on the outer side of the anchor rope body, the installation component is connected with the installation equipment, the anchor rope body is driven to be rotationally inserted into the first drilling hole, the anti-slip ridge lifts friction force with the anchor rope body, the wedge component rotates along with the anchor rope body, the sleeve body is inserted into the circular pipe through the arranged sleeve body, the wedge component rotates along with the anchor rope body and is in threaded connection with the sleeve body, the tail of the expansion of the inclined pipe stretches the outer side of the sleeve body along with the wedge component stretching into the sleeve body, the rigging and the sleeve component rotate along with the anchor rope body, the anchor rope body is stirred and combined with anchoring agent, the screw sheet is stirred and combined with stable cement paste, the fastening force is improved, the structure strength is high, the first drilling hole has a small diameter, the second drilling hole has a short length, the drilling difficulty is low, the deployment speed is high, the structure of the device is simple, and the installation is convenient.

Drawings

FIG. 1 is a perspective view of the present utility model schematic cross-sectional structure;

Fig. 2 is an enlarged schematic view of the cable body and mounting member of the present utility model;

fig. 3 is a schematic view of the cable body and mounting member of the present utility model in a disassembled configuration;

FIG. 4 is an enlarged schematic view of the sleeve assembly and wedge of the present utility model;

fig. 5 is a schematic perspective sectional view of a sleeve assembly and wedge of the present utility model.

Wherein: 1. a rock formation; 2. drilling a first hole; 3. drilling a second hole; 4. an anchoring agent; 5. stabilizing cement paste; 6. an anchor cable body; 7. a mounting member; 8. a rigging; 801. a limiting plate; 802. a round tube; 803. a sealing plate; 804. a spiral sheet; 805. grouting pipe; 806. grouting holes; 807. a limiting ring; 9. a sleeve assembly; 901. a sleeve body; 902. a groove; 903. an inclined plane; 904. a long groove; 10. a wedge; 1001. a chute; 1002. an anti-skid ridge.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, in the drawings, a pre-stressed anchor cable reinforcement device for a mine roadway bottom plate lower anchor upper injection type is arranged on a rock stratum 1, a first drilling hole 2 is formed in the rock stratum 1, a second drilling hole 3 is formed in the upper end of the rock stratum 1, an anchoring agent 4 is filled in the first drilling hole 2, a stable cement slurry 5 is filled in the second drilling hole 3, an anchor cable body 6 is arranged in the first drilling hole 2, an installation piece 7 is arranged at the upper end of the anchor cable body 6, a rigging 8 is arranged on the outer side of the anchor cable body 6, a sleeve component 9 is arranged at the upper end of the rigging 8, and a wedge-shaped piece 10 is arranged in the sleeve component 9.

In this embodiment: reinforcement is provided to the anchor cable body 6 by means of the rigging 8 provided.

Working principle: during the use, offer drilling one 2 and drilling two 3 on stratum 1, cup joint wedge 10 in the outside of anchor rope body 6, insert pipe 802 with sleeve pipe 901, anchor rope body 6 inserts in drilling one 2, the cable 8 inserts in drilling two 3, pour into anchor 4 in drilling one 2 through slip casting pipe 805, pour into firm grout 5 through slip casting hole 806, be connected installation piece 7 with the erection equipment with anchor rope body 5, drive anchor rope body 6 rotates and inserts in drilling one 2, the friction force with anchor rope body 6 is promoted to anti-skidding stupefied 1002, wedge 10 rotates with anchor rope body 6, with sleeve pipe 901 threaded connection, along with wedge 10 stretches into the inside of sleeve pipe body 901, the outside of sleeve pipe 901 is strutted to the afterbody that the sleeve pipe 1001 is expanded, strut sleeve pipe 9 in the inside of cable 8, cable 8 and sleeve pipe 9 rotate with anchor rope body 6, anchor rope body 6 and anchor 4 stir and combine, screw 804 and grout 5 stir and combine, fastening force has been promoted.

Example 2

Referring to fig. 1-5, in this embodiment, for example 1, the inner diameter of the first hole 2 is larger than the diameter of the anchor cable body 6, the inner diameter of the second hole 3 is larger than the diameter of the spiral piece 804, the inner diameter of the second hole 3 is smaller than the diameter of the limiting plate 801, and the sealing plate 803 is adapted to the second hole 3.

In this embodiment: through drilling one 2 and drilling two 3 that set up, insert anchor rope body 6 in pipe 802, anchor rope body 6 inserts in drilling one 2, and in the rigging 8 inserted drilling two 3, pour into anchor 4 in to drilling one 2 through grouting pipe 805, pour into firm grout 5 through grouting hole 806, be convenient for consolidate.

Referring to fig. 3-5, the sleeve assembly 9 in the drawings includes a sleeve body 901, a groove 902, an inclined plane 903 and a long groove 904, the groove 902 is formed at the lower end of the sleeve body 901, the inclined plane 903 is formed on the inner wall of the sleeve body 901, and the long groove 904 is formed on the outer side of the sleeve body 901.

In this embodiment: the anchor cable body 6 is fixed with the rigging 8 by the sleeve assembly 9 which is matched with the wedge-shaped piece 10.

Referring to fig. 3-5, wedge 10 is shown to include a tube 1001 and an anti-slip ridge 1002, where the anti-slip ridge 1002 is fixedly connected to the interior of tube 1001.

In this embodiment: through the wedge 10 that sets up, cup joint wedge 10 in the outside of anchor rope body 6, be connected installed piece 7 and erection equipment, drive anchor rope body 6 rotates and inserts in drilling one 2, and the friction with anchor rope body 6 is promoted to the anti-skidding stupefied 1002, and wedge 10 rotates along with anchor rope body 6.

Referring to fig. 3-5, the inclined plane 903 is shown to be matched with the inclined tube 1001, and the outer wall of the inclined tube 1001 and the inner wall of the sleeve body 901 are both threaded.

In this embodiment: through the sleeve pipe body 901 that sets up, insert pipe body 901 pipe 802, wedge 10 rotates along with anchor rope body 6, with sleeve pipe body 901 threaded connection, along with wedge 10 stretches into the inside of sleeve pipe body 901, the outside of sleeve pipe body 901 struts the afterbody that the pipe 1001 is expanded, with the inside of the pipe 802 of the cable 8 of tensioning of sleeve pipe assembly 9, the cable 8 rotates along with anchor rope body 6 with sleeve pipe assembly 9, anchor rope body 6 and anchor 4 stirring combine, flight 804 combines with firm grout 5 stirring, the fastening force has been promoted to flight 804, the simple structure of device, be convenient for install.

Referring to fig. 3-5, grouting tubes 805 are shown extending through the sealing plate 803 and the retainer plate 801, and grooves 902 are adapted to the retainer ring 807.

In this embodiment: the sleeve assembly 9 and the rigging 8 are restrained by the provision of grooves 902 and retaining rings 807.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process-method-article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process-method-article or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes-modifications-substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Mine tunnel bottom plate anchor up-injection type prestressed anchorage cable reinforcing apparatus sets up on stratum (1), its characterized in that: drilling one (2) have been seted up to the inside of stratum (1), drilling two (3) have been seted up to the upper end of stratum (1), the inside packing of drilling one (2) has anchoring agent (4), the inside packing of drilling two (3) has firm grout (5), the inside of drilling one (2) is provided with anchor rope body (6), the upper end of anchor rope body (6) is provided with installed part (7), the outside of anchor rope body (6) is provided with rigging (8), the upper end of rigging (8) is provided with sleeve pipe subassembly (9), the inside of sleeve pipe subassembly (9) is provided with wedge (10).

2. The mine roadway floor anchor up-injection type pre-stressed anchor cable reinforcement device according to claim 1, wherein: the cable tool (8) comprises a limiting plate (801), a round pipe (802), a sealing plate (803), a spiral sheet (804), a grouting pipe (805), a grouting hole (806) and a limiting ring (807), wherein the lower end of the limiting plate (801) is fixedly connected with the round pipe (802), the lower end of the round pipe (802) is fixedly connected with the sealing plate (803), the outer side of the round pipe (802) is fixedly connected with the spiral sheet (804), the lower end of the limiting plate (801) is fixedly connected with the grouting pipe (805), the upper end of the limiting plate (801) is provided with the grouting hole (806), and the upper end of the limiting plate (801) is fixedly connected with the limiting ring (807).

3. The mine roadway floor anchor up-injection type pre-stressed anchor cable reinforcement device according to claim 2, wherein: the inner diameter of the first drilling hole (2) is larger than the diameter of the anchor cable body (6), the inner diameter of the second drilling hole (3) is larger than the diameter of the spiral sheet (804), the inner diameter of the second drilling hole (3) is smaller than the diameter of the limiting plate (801), and the sealing plate (803) is matched with the second drilling hole (3).

4. A mine tunnel floor anchor up-injection type pre-stressed anchor cable reinforcement device according to claim 3, wherein: the sleeve assembly (9) comprises a sleeve body (901), a groove (902), an inclined plane (903) and a long groove (904), wherein the groove (902) is formed in the lower end of the sleeve body (901), the inclined plane (903) is formed in the inner wall of the sleeve body (901), and the long groove (904) is formed in the outer side of the sleeve body (901).

5. The mine tunnel underfloor anchor up-injection type pre-stressed anchor cable reinforcement device according to claim 4, wherein: the wedge-shaped piece (10) comprises an inclined tube (1001) and an anti-slip rib (1002), and the anti-slip rib (1002) is fixedly connected to the inner part of the inclined tube (1001).

6. The mine tunnel underfloor anchor up-injection type pre-stressed anchor cable reinforcement device according to claim 5, wherein: the inclined plane (903) is matched with the inclined tube (1001), and threads are formed on the outer wall of the inclined tube (1001) and the inner wall of the sleeve body (901).

7. The mine tunnel underfloor anchor up-injection type pre-stressed anchor cable reinforcement device according to claim 6, wherein: the grouting pipe (805) penetrates through the sealing plate (803) and the limiting plate (801), and the groove (902) is matched with the limiting ring (807).