Small coal pillar gob-side roadway supporting structure

Abstract

The utility model relates to the technical field of roadway supporting, in particular to a small coal pillar gob-side roadway supporting structure which comprises symmetrical supporting plates, a plurality of supporting frames are arranged on the tops of the supporting plates, baffles are arranged above the supporting frames, clamping columns are arranged at one ends of the supporting plates, clamping grooves are formed in the positions, corresponding to the clamping columns, of the other ends of the supporting plates, and inserting columns are arranged at the two ends of each supporting frame. Baffles are inserted into the clamping grooves, and arc-shaped supporting columns are arranged below the supporting frames. According to the small coal pillar gob-side roadway supporting structure, the clamping columns are arranged to be matched with the clamping grooves, two adjacent supporting plates are rapidly spliced and matched, the time occupied by combination and installation is shortened, the tops of the supporting plates are matched with the multiple supporting frames and the multiple arc-shaped supports, the stability of the top supports is improved, and the tops of the supporting frames are matched with the limiting grooves; and the baffle is in stable inserting fit, supporting fit is conducted on the broken soft layer of the roadway above, the outer side of the supporting plate is closely attached to the small coal pillar layer, and the supporting plate is matched with the supporting frame and the arc-shaped supports jointly to stably support the roadway.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel support, in particular to a small coal pillar gob-side tunnel support structure. Background Art

[0002] Small coal pillars are the coal pillars that separate the old goaf from the goaf when the coal mine is excavating along the goaf. Goaf support is one of the main tasks of underground engineering. Goaf support increases the support and coordination for goaf excavation and increases stability.

[0003] The utility model with the announcement number CN219034771U discloses a small coal pillar gob-side tunnel support structure, comprising: a soft roof support assembly, used for supporting the soft and broken roof; and a support mechanism, used in conjunction with the soft roof support assembly, used for supporting the soft roof support assembly; wherein the support mechanism comprises a pillar, an arc-shaped bracket A, a rod body and a small coal pillar side support assembly, the arc-shaped bracket A is clamped with the pillar, the small coal pillar support assembly comprises a baffle A and a baffle B, the baffle A is symmetrically arranged on two side pillars and fixedly connected with the pillars, and the baffle B is slidably matched with the baffle A;

[0004] The above technical scheme can support the soft and broken roof and small coal pillars, and can also adjust the support area of ​​the support mechanism according to the length of the tunnel and the support bearing capacity; however, the support mechanisms take a long time to be assembled and installed, and are not easy to align and match, and are not convenient for rapid assembly and combination, and cannot increase the structural stability during assembly. In addition, the soft roof support components are prone to collapse under external force, which affects the supporting tunnel. Utility Model Content

[0005] The purpose of the utility model is to provide a small coal pillar supporting structure along the goaf of the tunnel to solve the problem that the small coal pillar supporting structure along the goaf of the tunnel with the authorization announcement number CN219034771U proposed in the above-mentioned background technology takes a long time to be assembled and installed between the support mechanisms, is not easy to align and match, is not convenient for rapid assembly and combination, cannot increase the structural stability during assembly, and the soft top support assembly is easy to collapse under the pressure of external force, causing an impact on the supporting tunnel.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A small coal pillar supporting structure along an empty tunnel comprises a symmetrical support plate, a plurality of support frames are arranged on the top of the support plate, a baffle is arranged above the support frame, a clamping column is arranged on one end of the support plate, a clamping groove is arranged at a position corresponding to the clamping column on the other end of the support plate, plugging columns are arranged at both ends of the support frame, a plurality of fixing holes are arranged on the side wall of the support frame, steel bars are inserted between the fixing holes on the same axis of two adjacent support frames, a limiting groove is arranged on the upper surface of the support frame, a baffle is inserted in the limiting groove, and arc-shaped pillars are arranged under the support frame.

[0008] Preferably, a through groove is provided in the middle of each of the arc-shaped pillars, a plurality of reinforcing columns are provided in the through groove, and both ends of the reinforcing columns are respectively welded and fixed to the arc-shaped pillars.

[0009] In the utility model, a plurality of reinforcing columns are provided to increase the stability of the arc-shaped pillar support, which helps to hold up the upper support frame.

[0010] Preferably, sliders are provided at both ends of the arc-shaped pillar, the sliders and the arc-shaped pillars are an integrally formed structure, and sliding grooves are provided at the top of the support plate corresponding to the sliders.

[0011] In the utility model, the slider is provided to facilitate the plug-in cooperation with the slide groove on the support plate, so as to facilitate the quick combination and installation cooperation of the arc-shaped pillar and the two support plates.

[0012] Preferably, the plug post and the support frame are an integrally formed structure, a slot is provided at the top of the support plate corresponding to the plug post, and the lower surface of the support frame is tightly fitted with the upper surface of the arc-shaped pillar.

[0013] In the utility model, the arrangement of the plug posts helps the two ends of the support frame to be respectively plugged into the corresponding slots on the support plate, which facilitates the rapid splicing and installation of the support frame and the support plate, and the arc-shaped support column fits tightly with the support frame, increasing the supporting strength and facilitating pressure-resistant cooperation.

[0014] Preferably, the inner diameter of the fixing hole is matched with the diameter of the steel bar, the steel bar passes through the fixing holes on the multiple support frames in sequence, and the length between the limiting grooves is matched with the width of the outer wall of the baffle.

[0015] In the utility model, multiple steel bars are plugged into and matched with corresponding fixing holes, which increases the stability of the combination between adjacent support frames. With the cooperation of multiple steel bars, the solidity of the combination between multiple support frames helps to stably support the upper baffle, and with the cooperation of the limiting groove, it helps to stably plug and install the baffle.

[0016] Preferably, the support plate and the card column are an integrally formed structure, the width of the outer wall of the card column is adapted to the width of the inner wall of the slot, and two adjacent support plates are tightly plugged together, and the card column at one end of one support plate is plugged together with the slot at the other end of the other support plate.

[0017] In the utility model, the clamping column and the clamping groove are arranged to be plugged and matched, so that two adjacent support plates can be quickly and tightly assembled and matched, thereby shortening the time occupied by the installation.

[0018] Preferably, the inner wall of the support plate is symmetrically provided with countersunk holes, each of the countersunk holes is provided with a fixing bolt, the end of the fixing bolt extends into the slot, and screw holes are provided on the clamping column at positions corresponding to the fixing bolt.

[0019] In the utility model, the fixing bolt is installed in the countersunk hole to increase the aesthetics of the outer wall of the support plate, and the fixing bolt is inserted into the slot and threadedly connected with the screw hole to achieve stable fixed installation cooperation between two adjacent support plates.

[0020] Preferably, lighting lamps are symmetrically provided on the inner side surface of the support plate near the top.

[0021] In the utility model, an illumination lamp is provided and electrically connected to an external power source through a wire, and turning on a control switch of the illumination lamp helps to coordinate the illumination between the two support plates.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. The utility model realizes the rapid assembly and matching between two adjacent support plates by setting the card column and the card slot, shortens the time occupied by the combined installation, and the top of the support plate is matched with multiple support frames and multiple arc supports to increase the stability of the top support. The top of the support frame is matched with the limit groove, which is conducive to the stable plug-in matching of the baffle plate, and supports the broken soft layer of the upper roadway. The outer side of the support plate is closely attached to the small coal pillar layer, and the support plate, support frame and arc support work together to stably support the roadway.

[0024] 2. The utility model realizes the coordination of internal lighting of the alley by arranging a lighting lamp installed on the side wall of the support plate. The support frame is plugged into the plug column and the slot to facilitate the quick installation of the top of the support plate. With the cooperation of multiple steel bars, the stability between two adjacent support frames is increased. The arc-shaped support column is coordinated with the slider and the slide groove to achieve rapid assembly and coordination with the support plate. The fixing bolt passes through the countersunk hole and is threadedly connected with the screw hole on the corresponding clamping column to increase the stability of the combination between the support plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the splicing state of the utility model;

[0026] Figure 2It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the combined structure of the support frame and the support plate of the utility model;

[0028] Figure 4 This is a schematic diagram of the combined structure of the support plate and the arc-shaped pillar of the utility model;

[0029] Figure 5 This is a schematic diagram of the support plate structure of the utility model.

[0030] The meaning of each number in the figure is:

[0031] 1. Support plate; 10. Slot; 11. Slide; 12. Light; 13. Clamp column; 130. Screw hole; 14. Clamp slot; 15. Countersunk hole; 150. Fixing bolt;

[0032] 2. Support frame; 20. Fixing hole; 200. Steel bar; 21. Limiting groove; 22. Insert column;

[0033] 3. Arc-shaped pillar; 30. Through slot; 300. Reinforcement column; 31. Sliding block;

[0034] 4. Baffle. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1-Figure 5 , this embodiment provides a technical solution:

[0037] A small coal pillar supporting structure along an empty roadway comprises a symmetrical support plate 1, a plurality of support frames 2 are arranged on the top of the support plate 1, a baffle 4 is arranged above the support frame 2, a clamping column 13 is arranged on one end of the support plate 1, a clamping groove 14 is opened at the other end of the support plate 1 corresponding to the clamping column 13, the support plate 1 and the clamping column 13 are an integrally formed structure, the width of the outer wall of the clamping column 13 is matched with the width of the inner wall of the clamping groove 14, two adjacent support plates 1 are tightly plugged together, and the clamping column 13 at one end of one support plate 1 is plugged together with the clamping groove 14 at the other end of the other support plate 1.

[0038] In the present invention, the clamping column 13 and the clamping groove 14 are plugged and matched, so that two adjacent support plates 1 can be quickly and tightly assembled and matched, thus shortening the time occupied by the installation.

[0039] Furthermore, the inner wall of the support plate 1 is symmetrically provided with countersunk holes 15 , each of which is provided with a fixing bolt 150 , the end of which extends into the slot 14 , and screw holes 130 are provided on the posts 13 at locations corresponding to the fixing bolts 150 .

[0040] In the present invention, the fixing bolt 150 is installed in the countersunk hole 15 to increase the aesthetics of the outer wall of the support plate 1, and the fixing bolt 150 is inserted into the slot 14 and threadedly connected with the screw hole 130 to achieve stable fixed installation cooperation between two adjacent support plates 1.

[0041] Specifically, lighting lamps 12 are symmetrically provided on the inner side surface of the support plate 1 near the top.

[0042] In the utility model, an illumination lamp 12 is provided and electrically connected to an external power source through a wire. When a control switch of the illumination lamp 12 is turned on, it helps to coordinate the illumination between the two support plates 1 .

[0043] It should be noted that columns 22 are provided at both ends of the support frame 2, a number of fixing holes 20 are opened on the side wall of the support frame 2, and steel bars 200 are inserted between the fixing holes 20 on the same axis of two adjacent support frames 2. The columns 22 and the support frame 2 are an integrally formed structure, and a slot 10 is opened at the top of the support plate 1 corresponding to the columns 22, and the lower surface of the support frame 2 is tightly fitted with the upper surface of the arc-shaped pillar 3.

[0044] In the utility model, the arrangement of the plug posts 22 helps the two ends of the support frame 2 to be respectively plugged into the corresponding slots 10 on the support plate 1, which facilitates the rapid splicing and installation of the support frame 2 and the support plate 1, and the arc-shaped support 3 fits tightly with the support frame 2, increasing the supporting strength and facilitating pressure-resistant cooperation.

[0045] Furthermore, the inner diameter of the fixing hole 20 is matched with the diameter of the steel bar 200 , and the steel bar 200 sequentially passes through the fixing holes 20 on the plurality of support frames 2 , and the length between the limiting grooves 21 is matched with the width of the outer wall of the baffle 4 .

[0046] In the utility model, multiple steel bars 200 are plugged into and matched with corresponding fixing holes 20, which increases the stability of the combination between adjacent support frames 2. With the cooperation of multiple steel bars 200, the solidity of the combination between multiple support frames 2 helps to stably support the upper baffle 4, and with the cooperation of the limiting groove 21, it helps to stably plug and install the baffle 4.

[0047] Specifically, a limiting groove 21 is provided on the upper surface of the support frame 2 , a baffle 4 is inserted into the limiting groove 21 , and an arc-shaped support column 3 is provided below the support frame 2 .

[0048] Secondly, a through slot 30 is provided in the middle of each arc-shaped support column 3 , and a plurality of reinforcing columns 300 are provided in the through slot 30 . Both ends of the reinforcing columns 300 are respectively welded and fixed to the arc-shaped support column 3 .

[0049] In the present invention, a plurality of reinforcing columns 300 are provided to increase the stability of the arc-shaped support pillars 3 , which helps to hold up the upper support frame 2 .

[0050] Furthermore, sliders 31 are provided at both ends of the arc-shaped pillar 3 , the sliders 31 and the arc-shaped pillar 3 are an integrally formed structure, and a slide groove 11 is provided at the top of the support plate 1 corresponding to the sliders 31 .

[0051] In the present invention, the slider 31 is provided to facilitate the insertion and matching with the slide groove 11 on the support plate 1, so as to facilitate the quick combination and installation of the arc-shaped support 3 and the two support plates 1.

[0052] When the small coal pillar along the empty tunnel support structure of this embodiment is in use, the user first assembles two adjacent support plates 1 on one side of the small coal pillar in the tunnel, the clamping column 13 on one support plate 1 is plugged into the clamping groove 14 on the other support plate 1, the end of the fixing bolt 150 passes through the countersunk hole 15 and is threadedly connected to the screw hole 130 to increase the stability of the combination between the support plates 1, and then the support frame 2 is plugged into the slot 10 through the plugging column 22, and the support frames 2 are combined and fixed by multiple steel bars 200, and then the arc support 3 is plugged into the slide groove 11 through the slider 31, and the top of the arc support 3 is respectively close to the bottom of the corresponding support frame 2, and the support frame 2 is further lifted and matched, and finally the baffle 4 is correspondingly plugged into the limiting groove 21 on the support frame 2, and the lighting lamp 12 is connected to the external power supply through the control switch, and turning on the control switch helps to illuminate the inside of the supported tunnel;

[0053] When disassembly and replacement are required, the arc-shaped pillar 3 and the support frame 2 are taken out and replaced from the support plate 1 in turn, and the fixing bolt 150 is taken out to achieve rapid separation and matching between the two support plates 1, thereby increasing the stability of the overall combined installation. Under the extrusion from the top, the support frame 2 and the arc-shaped pillar 3 can both stably support and match.

Claims

1. A small coal pillar gob-side tunnel support structure, comprising a symmetrical support plate (1), a plurality of support frames (2) are arranged on the top of the support plate (1), a baffle (4) is arranged above the support frame (2), and the characteristics are: A clamping column (13) is provided on one end of the support plate (1), and a clamping groove (14) is provided on the other end of the support plate (1) at a position corresponding to the clamping column (13). Inserting columns (22) are provided at both ends of the support frame (2). A plurality of fixing holes (20) are provided on the side wall of the support frame (2), and steel bars (200) are inserted between the fixing holes (20) on the same axis of two adjacent support frames (2). A limiting groove (21) is provided on the upper surface of the support frame (2), and a baffle (4) is inserted in the limiting groove (21). An arc-shaped pillar (3) is provided below the support frame (2).

2. The small coal pillar gob-side tunnel support structure according to claim 1 is characterized in that: A through slot (30) is provided in the middle of each of the arc-shaped pillars (3), a plurality of reinforcing columns (300) are provided in the through slot (30), and both ends of the reinforcing columns (300) are respectively welded and fixed to the arc-shaped pillar (3).

3. The small coal pillar gob-side tunnel support structure according to claim 2 is characterized in that: Slide blocks (31) are provided at both ends of the arc-shaped pillar (3); the slide blocks (31) and the arc-shaped pillar (3) are an integrally formed structure; and a slide groove (11) is provided at the top of the support plate (1) corresponding to the slide blocks (31).

4. The small coal pillar gob-side tunnel support structure according to claim 1 is characterized in that: The plug post (22) and the support frame (2) are an integrally formed structure; a slot (10) is provided at the top of the support plate (1) corresponding to the plug post (22); and the lower surface of the support frame (2) is tightly fitted to the upper surface of the arc-shaped support column (3).

5. The small coal pillar gob-side tunnel support structure according to claim 1 is characterized in that: The inner diameter of the fixing hole (20) is matched to the diameter of the steel bar (200), the steel bar (200) sequentially passes through the fixing holes (20) on the plurality of support frames (2), and the length between the limiting grooves (21) is matched to the width of the outer wall of the baffle (4).

6. The small coal pillar gob-side tunnel support structure according to claim 1 is characterized in that: The support plate (1) and the clamping column (13) are an integrally formed structure, the width of the outer wall of the clamping column (13) is adapted to the width of the inner wall of the clamping groove (14), and two adjacent support plates (1) are tightly plugged in and matched, and the clamping column (13) at one end of one support plate (1) is plugged in and matched with the clamping groove (14) at the other end of the other support plate (1).

7. The small coal pillar gob-side tunnel support structure according to claim 1 is characterized in that: The inner wall of the support plate (1) is symmetrically provided with countersunk holes (15), each of the countersunk holes (15) is provided with a fixing bolt (150), the end of the fixing bolt (150) extends into the clamping groove (14), and the clamping column (13) is provided with a screw hole (130) at a position corresponding to the fixing bolt (150).

8. The small coal pillar gob-side tunnel support structure according to claim 1 is characterized in that: Illuminating lamps (12) are symmetrically arranged on the inner side surface of the support plate (1) near the top.

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