CN219139075U

CN219139075U - Device for solidifying surrounding rock of carbonaceous rock tunnel

Info

Publication number: CN219139075U
Application number: CN202320011754.1U
Authority: CN
Inventors: 陈川; 焦文灿; 刘家庆; 刘先林; 唐正辉; 邵羽; 匡波; 赖增伟; 米德才; 李洋溢; 叶琼瑶; 李弈杉
Original assignee: Guangxi Communications Design Group Co Ltd
Current assignee: Guangxi Communications Design Group Co Ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-06-06
Anticipated expiration: 2033-01-04

Abstract

The utility model relates to the technical field of tunnel drilling, in particular to a device for solidifying surrounding rock of a carbonaceous rock tunnel, which comprises an upper fixing strip and a lower fixing strip which are fixedly connected to the rock wall of the tunnel, wherein a supporting strip is arranged between the upper fixing strip and the lower fixing strip, a supporting strip adjusting mechanism is fixedly connected to the upper fixing strip, the top end of the supporting strip is in transmission connection with the supporting strip adjusting mechanism, the bottom end of the supporting strip is clamped with the lower fixing strip, and a fixing plate and auxiliary cloth are sequentially arranged between the supporting strip and the rock wall of the tunnel. By utilizing the structures, the device which can well fix and support the easily broken carbonaceous rock, avoid the breakage and collapse of the carbonaceous rock, improve the safety, and simultaneously has the advantages of simple structure, easy installation and convenience for constructors to install and is suitable for curing surrounding rocks of the carbonaceous rock tunnel.

Description

Device for solidifying surrounding rock of carbonaceous rock tunnel

Technical Field

The utility model relates to the technical field of tunnel drilling, in particular to a device for solidifying surrounding rock of a carbonaceous rock tunnel.

Background

Carbonaceous rock is shale containing a large amount of dispersed carbonized organic matters, and belongs to shale in shale. The times and the regional distribution of the carbonaceous shale are wide, and the carbonaceous shale is widely distributed in coal-based strata in China. Often contains plant fossil, is formed in lake-marsh or lagoon-marsh environments and is symbiotic with coal-based strata. Because carbonaceous rock has a page structure, a argillaceous structure (particle size is less than 0.005 mm), and the argillaceous structure is easy to crack and easy to crack along the parallel stacking direction, when a tunnel is drilled, if the carbonaceous rock exists on a drilling path, the construction safety and the construction progress can be greatly influenced. The distribution of the carbonaceous rock is also wider, is a common rock stratum during tunnel drilling, is difficult to avoid, and is a great problem for tunnel drilling engineering for the treatment of the surrounding rock of the carbonaceous rock.

Disclosure of Invention

The utility model aims to provide a device for solidifying surrounding rocks of a carbonaceous rock tunnel, so as to solve the problems, and achieve the purposes of well fixing and supporting the easily broken carbonaceous rock, avoiding the breakage and collapse of the carbonaceous rock, improving the safety, and being simple in structure, easy to install and convenient for constructors to install.

In order to achieve the above object, the present utility model provides the following solutions:

the utility model provides a device for carbonaceous rock tunnel country rock solidification, includes fixed connection on tunnel rock wall go up fixed strip, lower fixed strip, go up fixed strip, be equipped with the support bar down between the fixed strip, go up fixedly connected with support bar adjustment mechanism on the fixed strip, the support bar top with support bar adjustment mechanism transmission is connected, the support bar bottom with lower fixed strip joint, the support bar with be equipped with fixed plate, auxiliary cloth in proper order between the tunnel rock wall.

Preferably, the support bar adjusting mechanism comprises an adjusting cavity, a gear set is arranged in the adjusting cavity and is in transmission connection with the support bar, a limiting structure is rotationally connected in the adjusting cavity and is in clamping connection with the gear set, an adjusting cavity opening is formed in one side of the adjusting cavity, and one end of the limiting structure extends out of the adjusting cavity opening.

Preferably, the gear set comprises a composite gear and a first gear meshed with the composite gear, the composite gear comprises a ratchet wheel and a second gear which are coaxially arranged, the first gear is meshed with the second gear, the second gear is further in transmission connection with the supporting bar, and the ratchet wheel is clamped with the limiting structure.

Preferably, the diameter of the first gear is smaller than the diameter of the second gear.

Preferably, the limit structure comprises a positioning rod, the middle part of the positioning rod is rotationally connected in the adjusting cavity, one end of the positioning rod is connected with the ratchet wheel in a clamping mode, the other end of the positioning rod extends out of the opening of the adjusting cavity, a reset spring is fixedly connected to the part, located in the adjusting cavity, of the positioning rod, and the reset spring is fixedly connected with the inner wall of the adjusting cavity.

Preferably, the top end of the supporting bar is fixedly connected with a pressing rack which is vertically arranged, and the pressing rack is in transmission connection with the gear set.

Preferably, a pressure knob is coaxially and fixedly connected to one side of the first gear, the pressure knob is located on the outer side of the adjusting cavity, and a clamping groove is formed in one end, away from the first gear, of the pressure knob.

Preferably, the support bars are fixedly connected with wood plate fixing nails at equal intervals, and the wood plate fixing nails are fixedly connected with the fixing plates.

The utility model has the following technical effects:

when the auxiliary cloth is installed, the auxiliary cloth is firstly installed on the rock wall of the tunnel, the surrounding rock of the carbonaceous rock tunnel can be prevented from being cracked under the conditions of drilling and the like, and the protection effect on the rock wall is enhanced. And then the upper fixing strip and the lower fixing strip are installed at proper positions, supporting strips are inserted between the upper fixing strip and the lower fixing strip, and fixing plates are installed between the supporting strips and auxiliary cloth, so that the fixing plates are fixed with the supporting strips, the supporting areas are larger due to the arrangement of the fixing plates, and the hard fixing plates are arranged from top to bottom, so that the wall surfaces with different curvatures are adapted to the wall surfaces, and good supporting effects are provided for the wall surfaces. After the installation is finished, the support bar adjusting mechanism is adjusted, the support bar is stressed to bend, the support bar is supported by the fixing plates, the support bar can adapt to the wall surfaces with different curvatures through the arrangement of the structure, the adaptability is good, and a plurality of fixing plates are uniformly supported.

By utilizing the structures, the device which can well fix and support the easily broken carbonaceous rock, avoid the breakage and collapse of the carbonaceous rock, improve the safety, and simultaneously has the advantages of simple structure, easy installation and convenience for constructors to install and is suitable for curing surrounding rocks of the carbonaceous rock tunnel.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of the present utility model after installation;

fig. 2 is a front view of embodiment 1;

FIG. 3 is a rear view of embodiment 1;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a front view of embodiment 2.

1, a supporting bar adjusting mechanism; 2. a lower fixing strip; 3. a support bar; 4. a fixing strip is arranged on the upper part; 5. a rock layer fixing screw; 6. a fixing plate; 7. auxiliary cloth; 8. a tunnel rock wall; 101. a regulating chamber; 102. a composite gear; 103. a first gear; 104. a positioning rod; 105. a return spring; 1011. adjusting the cavity opening; 1021. a ratchet wheel; 1022. a second gear; 1023. a pressure knob; 301. a wood board fixing nail; 302. a pressing rack; 601. and (5) fixing screws on the wood board.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Embodiment one: referring to fig. 1-4, this embodiment provides a device for solidifying surrounding rock of a carbonaceous rock tunnel, which comprises an upper fixing strip 4 and a lower fixing strip 2 fixedly connected to a tunnel rock wall 8, wherein a supporting strip 3 is arranged between the upper fixing strip 4 and the lower fixing strip 2, a supporting strip adjusting mechanism 1 is fixedly connected to the upper fixing strip 4, the top end of the supporting strip 3 is in transmission connection with the supporting strip adjusting mechanism 1, the bottom end of the supporting strip 3 is clamped with the lower fixing strip 2, and a fixing plate 6 and an auxiliary cloth 7 are sequentially arranged between the supporting strip 3 and the tunnel rock wall 8.

Through such setting, when the installation, at first for tunnel rock wall 8 installation auxiliary cloth 7, auxiliary cloth 7's setting can prevent that carbonaceous rock tunnel country rock from taking place the rupture of rock wall under the circumstances such as drilling, reinforcing is to the guard action of rock wall. The upper fixing strip 4 and the lower fixing strip 2 are installed at proper positions, the supporting strips 3 are inserted between the upper fixing strip 4 and the lower fixing strip 2, the fixing plates 6 are installed between the supporting strips 3 and the auxiliary cloth 7, the fixing plates 6 are fixed with the supporting strips 3, the supporting area is larger due to the arrangement of the fixing plates 6, and the fixing plates 6 are arranged from top to bottom, so that the wall with different curvatures is adapted to a good supporting effect. After the installation is finished, the support bar adjusting mechanism 1 is adjusted, the support bars 3 are stressed to bend, the fixing plates 6 are supported, the support bars 3 can adapt to wall surfaces with different curvatures through the arrangement of the structure, the adaptability is good, and a plurality of fixing plates 6 are uniformly supported.

The material of the support bar 3 is preferably steel with a certain thickness and higher elasticity, so as to prevent the support bar 3 from bending, breaking and other conditions due to stress, thereby influencing the supporting effect.

Further optimizing scheme, support bar adjustment mechanism 1 is including adjusting chamber 101, is equipped with the gear train in adjusting chamber 101, and the gear train is connected with support bar 3 transmission, and adjusting chamber 101 internal rotation is connected with limit structure, limit structure and gear train joint, and adjusting chamber opening 1011 has been seted up to adjusting chamber 101 one side, and limit structure one end extends and adjusts chamber opening 1011.

The number of the adjusting chambers 101 is equal to the number of the supporting bars 3, and is generally set to be at least two.

Through setting up regulation chamber 101, can let the gear train wherein adjust support bar 3 to support the gear train through limit structure, can let support bar 3 tighten up laborsaving with stability, realize the support to fixed plate 6, fix through limit structure simultaneously.

Further optimizing scheme, the gear train includes compound gear 102, with compound gear 102 engaged with first gear 103, compound gear 102 includes ratchet 1021, the second gear 1022 of coaxial setting, and first gear 103 meshes with second gear 1022, and second gear 1022 still is connected with support bar 3 transmission, ratchet 1021 and limit structure joint.

Further preferably, the diameter of the first gear 103 is smaller than the diameter of the second gear 1022.

By the arrangement, the first gear 103 is more labor-saving when driving the second gear 1022, and meanwhile, the ratchet 1021 can limit the rotation of the second gear 1022 by a certain angle, so that the support bar 3 is fixed, and stable support is realized.

Further optimizing scheme, limit structure includes locating lever 104, and locating lever 104 middle part rotates to be connected in adjusting chamber 101, and the one end and the ratchet 1021 joint of locating lever 104, and adjusting chamber opening 1011 is extended to the other end of locating lever 104, and locating lever 104 is located the part in adjusting chamber 101 on fixedly connected with reset spring 105, reset spring 105 and adjusting chamber 101 inner wall fixed connection.

The positioning rod 104 is arranged so that the ratchet 1021 can be limited in position, and the return spring 105 provides thrust force to the positioning rod 104 towards the ratchet 1021 so that the positioning rod 104 can be pushed towards the ratchet 1021 in real time to provide support for the same. When the support is not needed, a worker only needs to push the positioning rod 104 to enable the ratchet 1021 to lose the limit, so that the support bar 3 is also lost, and the support bar 3 is conveniently detached. With these structures, the support bar 3 is conveniently and safely restrained and released.

Further optimizing scheme, the top of the supporting bar 3 is fixedly connected with a pressing rack 302 which is vertically arranged, and the pressing rack 302 is in transmission connection with the gear set. The pressing rack 302 is configured to cooperate with the second gear 1022, and the second gear 1022 drives the pressing rack 302 to rise and fall when rotating.

Further optimizing scheme, the coaxial fixedly connected with pressure knob 1023 in first gear 103 one side, pressure knob 1023 are located the regulation chamber 101 outside, and the joint groove has been seted up to pressure knob 1023 one end that keeps away from first gear 103. The clamping groove arranged on the outer surface of the pressure knob 1023 can be screwed by a wrench or other devices, so that a constructor can rotate the first gear 103 more conveniently.

Further optimizing scheme, equidistant fixedly connected with plank staple 301 on the support bar 3, plank staple 301 and fixed plate 6 fixed connection. The arrangement of the wood plate fixing nails 301 allows the fixing plate 6 to be connected with the supporting bars 3 better and more stably.

Embodiment two:

referring to fig. 5, the difference between the present embodiment and the first embodiment is that the two sides of the fixing plate 6 are provided with the board fixing screws 601, and the board fixing screws 601 are inserted into the tunnel rock wall 8 to improve the fixing effect of the fixing plate 6, share and reduce the pressure applied to the supporting bar 3, and reduce the deflection caused by the excessive stress of the supporting bar 3.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims

1. A device for carbonaceous rock tunnel country rock solidification, its characterized in that includes fixed connection on tunnel rock wall (8) go up fixed strip (4), lower fixed strip (2), go up fixed strip (4), be equipped with support bar (3) down between fixed strip (2), go up fixedly connected with support bar adjustment mechanism (1) on fixed strip (4), support bar (3) top with support bar adjustment mechanism (1) transmission is connected, support bar (3) bottom with fixed strip (2) joint down, support bar (3) with be equipped with fixed plate (6), auxiliary cloth (7) in proper order between tunnel rock wall (8).

2. The device for curing surrounding rock of a carbonaceous rock tunnel according to claim 1, wherein the supporting bar adjusting mechanism (1) comprises an adjusting cavity (101), a gear set is arranged in the adjusting cavity (101), the gear set is in transmission connection with the supporting bar (3), a limiting structure is rotationally connected with the adjusting cavity (101), the limiting structure is clamped with the gear set, an adjusting cavity opening (1011) is formed in one side of the adjusting cavity (101), and one end of the limiting structure extends out of the adjusting cavity opening (1011).

3. The device for curing surrounding rock of a carbonaceous rock tunnel according to claim 2, wherein the gear set comprises a compound gear (102), a first gear (103) meshed with the compound gear (102), the compound gear (102) comprises a ratchet wheel (1021) and a second gear (1022) which are coaxially arranged, the first gear (103) is meshed with the second gear (1022), the second gear (1022) is further in transmission connection with the supporting bar (3), and the ratchet wheel (1021) is clamped with the limiting structure.

4. A device for carbonaceous rock tunnel surrounding rock solidification according to claim 3, characterized in that the diameter of the first gear (103) is smaller than the diameter of the second gear (1022).

5. A device for curing surrounding rock of a carbonaceous rock tunnel according to claim 3, wherein the limiting structure comprises a positioning rod (104), the middle part of the positioning rod (104) is rotatably connected in the adjusting cavity (101), one end of the positioning rod (104) is clamped with the ratchet wheel (1021), the other end of the positioning rod (104) extends out of the opening (1011) of the adjusting cavity, a return spring (105) is fixedly connected to the part of the positioning rod (104) located in the adjusting cavity (101), and the return spring (105) is fixedly connected with the inner wall of the adjusting cavity (101).

6. The device for curing surrounding rock of a carbonaceous rock tunnel according to claim 2, wherein the top end of the supporting bar (3) is fixedly connected with a pressing rack (302) which is vertically arranged, and the pressing rack (302) is in transmission connection with the gear set.

7. A device for curing surrounding rock of a carbonaceous rock tunnel according to claim 3, wherein a pressure knob (1023) is coaxially and fixedly connected to one side of the first gear (103), the pressure knob (1023) is located outside the adjusting cavity (101), and a clamping groove is formed in one end, far away from the first gear (103), of the pressure knob (1023).

8. Device for curing surrounding rock of a carbonaceous rock tunnel according to claim 2, characterized in that the supporting bars (3) are fixedly connected with wood plate fixing nails (301) at equal intervals, and the wood plate fixing nails (301) are fixedly connected with the fixing plates (6).