CN217300587U

CN217300587U - Disposal structure of karst cave on tunnel arch top

Info

Publication number: CN217300587U
Application number: CN202221087805.0U
Authority: CN
Inventors: 刘苗; 尹涛; 刘彦军; 杨甲南; 杨西峰; 郝思雨
Original assignee: CCCC SHEC Second Engineering Co Ltd
Current assignee: CCCC SHEC Second Engineering Co Ltd
Priority date: 2022-05-07
Filing date: 2022-05-07
Publication date: 2022-08-26
Anticipated expiration: 2032-05-07

Abstract

The utility model discloses a tunnel encircles processing structure of solution cavity on top relates to tunnel construction equipment technical field. The utility model discloses an arc, be provided with damper on the arc, pass through on the arc damper be provided with the hydraulic telescoping rod of the backplate arc of arc looks adaptation. The utility model discloses a damper sets up the backplate on the arc, aim at the solution cavity position with metal expansion network, support the arc with hydraulic telescoping rod, utilize the tunnel lateral wall laminating of expansion plate and both sides, utilize the diaphragm to fix the both sides expansion plate and form and support the lateral wall, rotate threaded rod to metal expansion network top, communicate packing machine and threaded rod and with packing inside pouring into metal expansion network, the metal expansion network inflation is filled in the packing, accomplish with small-size solution cavity laminating and fill the operation, to sum up the processing structure of solution cavity on the tunnel arch top of our design, can utilize the backplate shutoff to recycle packing machine to fill solution cavity earlier, fill according to the solution cavity size.

Description

Disposal structure of karst cave on tunnel arch top

Technical Field

The utility model relates to a tunnel construction equipment technical field, concretely relates to tunnel encircles structure of dealing with of solution cavity on top.

Background

Tunnels are engineering structures buried in the ground and are a form of human use of underground space. The tunnel can be divided into a traffic tunnel, a hydraulic tunnel, a municipal tunnel, a mine tunnel and a military tunnel. During tunnel construction, holes are often drilled, a plurality of karst caves can be encountered, the karst caves are natural caves, the sizes of the karst caves are small, improper treatment is realized, the construction period can be delayed, even collapse is caused, accidents are easily caused, and high attention is paid to the tunnel construction.

Aiming at small karst caves, at present, in the tunnel excavation process, when the small karst caves are encountered, local treatment is often adopted, filler is generally injected firstly and then blocked, and obviously, the method has limitation, the karst caves cannot be blocked well, effective supplement cannot be carried out according to the sizes of the karst caves, and finally collapse is caused due to incomplete treatment, so that the places of the small karst caves need to be filled or blocked comprehensively, the collapse possibility is reduced, and a safer environment is provided, so that a treatment structure for the karst caves on the tunnel arch top with the filler firstly blocked is designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

a disposal structure of a karst cave on a tunnel arch crown comprises an arc plate, wherein a damping mechanism is arranged on the arc plate, a protective plate matched with the arc plate is arranged on the arc plate through the damping mechanism, a metal expansion net attached to the karst cave is fixed on the protective plate, the metal expansion net and the protective plate form a closed interval, a plurality of threaded sleeves penetrating through the protective plate and embedded in advance are arranged on the arc plate, one end of each threaded sleeve is positioned in the metal expansion net, threaded rods matched with the threaded sleeves and hollow in the threaded sleeves are connected in a threaded manner, the end parts of the threaded rods are communicated with a filling machine, expansion plates used for maintaining two side walls are arranged at two ends of the arc plate, a plurality of hydraulic telescopic rods used for supporting the arc plate are arranged on the arc plate, and the hydraulic telescopic rods are arranged on the ground, and the telescopic plate is provided with a transverse plate which can be arranged on the ground.

Further, damper is including setting up outer pole on the arc, be provided with on the backplate with the interior pole of outer pole looks adaptation, interior pole with be provided with the spring between the outer pole.

Further, the expansion plate is including setting up inner panel on the arc, the inner panel overcoat be equipped with inner panel looks adaptation and with the planking of ground contact.

Further, the transverse plate is connected with the outer plate, mounting holes are formed in the transverse plate, and fixing piles are inserted into the mounting holes.

Furthermore, a threaded connecting pipe is sleeved on the threaded rod in a threaded manner and is used for connecting the threaded rod with the output end of the filling machine.

Further, a handle is arranged on the threaded rod.

The utility model has the advantages as follows:

the utility model arranges the guard plate on the arc plate through the damping mechanism, moves the device to the solution cavity, aligns the metal expansion net to the solution cavity position, supports the arc plate by the hydraulic expansion rod, attaches the expansion plate to the side wall of the tunnel at two sides, installs the expansion plates at two sides on the ground by the transverse plate to form the support for the side wall, under the action of the threaded sleeve, the threaded rod is rotated to the top of the metal expansion net, the filling machine is communicated with the threaded rod, the filler is injected into the metal expansion net through the interior of the threaded rod, the metal expansion net is filled with the filler from top to bottom, when the amount of the filler is increased, in conclusion, the disposal structure of the karst cave on the tunnel arch top can be firstly plugged by the guard plate and then filled by the filling machine, and automatic filling is performed according to the size of the cave, so that the possibility of collapse is reduced, and the working efficiency is improved.

Drawings

Fig. 1 is a solid view of the three-dimensional structure of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a cross-sectional view taken along line a-a of fig. 2 in accordance with the present invention;

fig. 4 is a partial structural entity diagram of the present invention.

Reference numerals: 1. an arc-shaped plate; 2. a damping mechanism; 201. an outer pole; 202. an inner rod; 203. a spring; 3. a guard plate; 4. a metal expanded mesh; 5. a threaded bushing; 6. a threaded rod; 601. a threaded connection pipe; 602. a handle; 7. a retractable plate; 701. an inner plate; 702. an outer plate; 8. a hydraulic telescopic rod; 9. a transverse plate; 901. mounting holes; 902. and (6) fixing the pile.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

As shown in fig. 1, 2, 3 and 4, the device comprises an arc-shaped plate 1, a damping mechanism 2 is arranged on the arc-shaped plate 1, a protection plate 3 matched with the arc-shaped plate 1 is arranged on the arc-shaped plate 1 through the damping mechanism 2, the damping mechanism 2 protects the protection plate 3, the protection plate 3 protects the arc-shaped plate 1, a metal expansion net 4 attached to a karst cave is fixed on the protection plate 3, the metal expansion net 4 can expand and is attached to the karst cave, the metal expansion net 4 and the protection plate 3 form a closed interval, a sealing ring is arranged at the connection part of the metal expansion net 4 and the protection plate 3 to improve the sealing performance, the prior blocking is completed, a plurality of thread sleeves 5 penetrating through the protection plate 3 and embedded are arranged on the arc-shaped plate 1, one end of the thread sleeves 5 is positioned inside the metal expansion net 4, a thread rod 6 matched with the thread sleeves 5 and hollow inside is connected in the thread sleeves 5, the end part of the thread rod 6 is communicated with a machine filler, after finishing the filling, both ends of the arc plate 1 are provided with expansion plates 7 for maintaining two side walls, the expansion plates 7 can be adjusted according to the length of the side walls, the arc plate 1 is provided with a plurality of hydraulic telescopic rods 8 for supporting the arc plate 1, the hydraulic telescopic rods 8 are installed on the ground, the expansion plates 7 are provided with transverse plates 9 which can be installed on the ground, the expansion plates 7 can be installed on the ground to form a support by the transverse plates 9, in some embodiments, the arc plate 1 is provided with a guard plate 3 through a damping mechanism 2, the device is moved to a karst cave position, the metal expansion net 4 is aligned to the karst cave position, the arc plate 1 is supported by the hydraulic telescopic rods 8, the expansion plates 7 are attached to the side walls of the tunnels at both sides, the expansion plates 7 at both sides are installed on the ground to form a support to the side walls by the transverse plates 9, under the action of the threaded sleeve 5, the threaded rod 6 is rotated to the top of the metal expansion net 4, with filling machine and 6 intercommunications of threaded rod and with inside the metal expansion net 4 that pours into of filler through 6 threaded rod, fill metal expansion net 4 from top to bottom, when filler increases, the operation of filling is accomplished with the laminating of small-size solution cavity to the expansion of metal expansion net 4, to sum up, the tunnel hunch of we design goes up the processing structure of solution cavity, can utilize 3 shutoff of backplate earlier and then utilize the filling machine to fill the solution cavity, carries out automatic filling according to the size in solution cavity, reduces the possibility that collapses and improves work efficiency simultaneously.

As shown in fig. 2 and 3, damper 2 is including setting up outer pole 201 on arc 1, be provided with the interior pole 202 with outer pole 201 looks adaptation on the backplate 3, be provided with spring 203 between interior pole 202 and the outer pole 201, in some embodiments, when backplate 3 receives the earthwork and assaults, backplate 3 decurrent power makes interior pole 202 slide outside pole 201, spring 203 compresses, spring 203 needs to resume the original state, the ascending reaction force of interior pole 202 this moment, damper 2's setting can effectively protect backplate 3, reduce the injury of earthwork to backplate 3, the life of the improvement device, also do benefit to the protection to arc 1.

As shown in fig. 1, the expansion plate 7 includes an inner plate 701 disposed on the arc plate 1, an outer plate 702 adapted to the inner plate 701 and contacting with the ground is sleeved outside the inner plate 701, the inner plate 701 and the outer plate 702 slide relatively, in some embodiments, the outer plate 702 is pulled to slide to be adapted to the side wall under the action of the inner plate 701 according to the length of the side wall of the tunnel, and then the outer plate 702 is installed on the ground by using a cross plate 9 to form a support for the side wall, the arrangement of the expansion plate 7 can adjust the apparatus according to the terrain, and at the same time, the side wall can be supported, so as to reduce the possibility of collapse of the side wall.

As shown in fig. 1, the transverse plate 9 is connected with the outer plate 702, a plurality of mounting holes 901 are formed in the transverse plate 9, fixing piles 902 are inserted into the mounting holes 901, the mounting holes 901 are matched with the fixing piles 902, in some embodiments, the outer plate 702 is stretched to be in contact with the ground, the fixing piles 902 are inserted into the mounting holes 901 to be located below the ground, fixing to the transverse plate 9 is formed, the telescopic plate 7 is supported by the aid of cooperation of the mounting holes 901 and the fixing piles 902, the telescopic plate 7 is prevented from freely sliding, the device is more stable, and meanwhile construction of workers is facilitated.

As shown in fig. 4, threaded sleeve is equipped with threaded connection pipe 601 on threaded rod 6, threaded connection pipe 601 is used for connecting threaded rod 6 and the filling machine output, in some embodiments, be close to the end of filling machine output and threaded rod 6, it is together to rotate threaded connection pipe 601 until the end connection of filling machine output and threaded rod 6, can use the filling machine to pour into the filler, threaded connection pipe 601 set up the effective joint filling machine of ability, stability is improved, easy to assemble and dismantlement simultaneously, the workman's work of being convenient for, and work efficiency is improved.

As shown in fig. 4, the threaded rod 6 is provided with a handle 602, and in some embodiments, the handle 602 is provided to facilitate a worker to apply a force to the threaded rod 6, provide a force application point, facilitate the work of the worker, avoid direct contact with the threaded rod 6, and effectively protect the worker.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A disposal structure of a karst cave on a tunnel arch top is characterized by comprising an arc plate (1), wherein a damping mechanism (2) is arranged on the arc plate (1), a protective plate (3) matched with the arc plate (1) is arranged on the arc plate (1) through the damping mechanism (2), a metal expansion net (4) attached to the karst cave is fixed on the protective plate (3), the metal expansion net (4) and the protective plate (3) form a closed interval, a plurality of pre-embedded threaded sleeves (5) penetrating through the protective plate (3) are arranged on the arc plate (1), one ends of the threaded sleeves (5) are located inside the metal expansion net (4), threaded sleeves (5) are in threaded connection with threaded rods (6) matched with the threaded sleeves (5) and are hollow inside, and the end parts of the threaded rods (6) are communicated with a filling machine, the both ends of arc (1) are provided with expansion plate (7) that are used for maintaining the both sides wall, be provided with a plurality of being used for supporting on arc (1) hydraulic telescoping rod (8) of arc (1), hydraulic telescoping rod (8) are installed subaerial, be provided with mountable subaerial diaphragm (9) on expansion plate (7).

2. The disposal structure of a tunnel vault according to claim 1, characterized in that said shock-absorbing mechanism (2) includes an outer rod (201) disposed on said arc-shaped plate (1), said guard plate (3) is provided with an inner rod (202) fitted with said outer rod (201), and a spring (203) is disposed between said inner rod (202) and said outer rod (201).

3. A disposal structure for a tunnel vault according to claim 1, characterized in that said expansion plate (7) includes an inner plate (701) disposed on said arc plate (1), said inner plate (701) being externally sleeved with an outer plate (702) adapted to said inner plate (701) and contacting the ground.

4. A disposal structure of a tunnel vault according to claim 3, characterized in that said cross slab (9) is connected with said external slab (702), said cross slab (9) is configured with mounting holes (901), said mounting holes (901) are inserted with fixing piles (902).

5. A disposal structure for a tunnel vault according to claim 1, characterized in that the threaded rod (6) is threaded with a threaded connection pipe (601), said threaded connection pipe (601) being used to connect said threaded rod (6) with the output end of the filling machine.

6. A handling structure for a cavern in a tunnel vault as recited in claim 1, characterized in that said threaded rod (6) is provided with a handle (602).