CN107420117B - Supporting and connecting device for coal mine tunnel - Google Patents
Supporting and connecting device for coal mine tunnel Download PDFInfo
- Publication number
- CN107420117B CN107420117B CN201710583478.5A CN201710583478A CN107420117B CN 107420117 B CN107420117 B CN 107420117B CN 201710583478 A CN201710583478 A CN 201710583478A CN 107420117 B CN107420117 B CN 107420117B
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- Prior art keywords
- section
- head
- supporting steel
- clamping
- wall
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/155—Laggings made of strips, slats, slabs or sheet piles
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
Abstract
The invention discloses a supporting and connecting device for a coal mine tunnel, wherein a waterproof belt layer is arranged between an inner tunnel supporting steel plate and an outer tunnel supporting steel plate, the inner tunnel supporting steel plate and the outer tunnel supporting steel plate are of a sectional structure, two adjacent sections of inner tunnel supporting steel plates are connected together by adopting a fine-tuning rotation connecting assembly, the fine-tuning rotation connecting assembly can realize rotation in an angle range of-3-3 degrees, and a containing groove for containing rotation of the fine-tuning rotation connecting assembly is arranged between two adjacent sections of outer tunnel supporting steel plates. According to the invention, the supporting steel plate is supported by adopting the connecting structure, so that the inner supporting steel plate can deform at a certain angle, the deformation is adapted to be regulated when fracture stress concentration occurs in the rock stratum, the stress concentration effect on the supporting steel plate can be prevented, the safety of steel plate supporting is improved, the overall stability of the supporting steel plate can be effectively improved, and the invention is adapted to the requirements of various soft rock strata.
Description
Technical Field
The invention relates to a supporting and connecting device for a coal mine tunnel, and belongs to the technical field of auxiliary equipment for supporting the coal mine tunnel.
Background
At present, for the support of coal mine tunnel, generally anchor rods and anchor cables are adopted for support, for the tunnel side, a support steel plate is generally required to be arranged on the wall of the tunnel side, and a waterproof layer is arranged on the inner side of the support steel plate for waterproof performance, the current support is generally welded together by a plurality of support steel plates and then fixed on the tunnel side, and a tunnel roof is supported and supported, and the support mode of the structure can realize the support of the tunnel, however, when the structure is used for support, if rock stratum in the tunnel is soft and faults occur, the condition that stress is concentrated easily occurs when the support steel plate is subjected to larger cross-sectional force, and once special collapse shearing force occurs at a certain position, the support steel plate is in a rigid structure, the stress of the steel plate is easily concentrated, so that the steel plate is cracked, and the safety of the support is seriously affected.
Aiming at the problems, the invention provides the supporting and connecting device for the coal mine tunnel so as to improve the supporting effect of the tunnel.
Disclosure of Invention
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a coal mine tunnel is with supporting connecting device, its includes interior tunnel supporting steel sheet, waterproof tape layer, outer tunnel supporting steel sheet, fine setting rotate coupling assembling and connecting bolt, interior tunnel supporting steel sheet and outer tunnel supporting steel sheet adopt stock and anchor rope anchor to support in the lane group and the top of the roadway department, interior tunnel supporting steel sheet with be provided with waterproof tape layer between the outer tunnel supporting steel sheet, interior tunnel supporting steel sheet with still adopt between the outer tunnel supporting steel sheet connecting bolt connects and fixes together, its characterized in that, interior tunnel supporting steel sheet with outer tunnel supporting steel sheet all adopts sectional type structure, and adopts fine setting rotation coupling assembling to link together between the two sections adjacent interior tunnel supporting steel sheets, fine setting rotation coupling assembling can realize rotating at the angle range of-3-3 DEG scope, has between the adjacent two sections outer tunnel supporting steel sheet and holds fine setting rotation coupling assembling pivoted holding tank.
Further, preferably, a positioning groove is formed in the outer roadway support steel plate, and the connecting bolt is arranged in the positioning groove.
Further, as the preference, fine setting rotates coupling assembling including connecting public head, connection shell fragment and connection female head, wherein, connect public head's inner encircle extend set up in connect female head's inner wall side, connect female head's inner encircle extend set up in connect public head's inner wall side, connect female head's inner wall side with connect public head's inner wall side and enclose into the space that becomes and hold and be provided with the connecting pin axle, connect public head with connect female head can wind connecting pin axle's central axis does the angle rotation of-3-3 scope, and wherein the rotation of this angle scope relies on the deformation of connecting public head department to realize, still block on the connection public head and be equipped with the connection shell fragment, connect the shell fragment along connect public head with connect on the outer circumference wall of connecting pin axle is extended to the region between the female head.
Further, as the preference, connect public head including outer arc spacing section, interior card section, outer dop and the interior extension section of integrative setting, wherein, the outer wall of outer arc spacing section is connected with interior tunnel support steel sheet, be connected with curved interior card section and outer card section on the outer arc spacing section, interior card section with construct between the outer card section and hold connect the draw-in groove of shell fragment tip in order to block and connect the shell fragment, the tip of outer card section is provided with the outer card head that extends to the inboard, outer card head card goes into connect the shell fragment setting, interior card section is to the arcuate extension of inboard to interior extension section, just the inner diameter of the arc of the inner wall of interior extension section reduces gradually, so that interior extension section extends and converges to on the outer circumference wall of connecting pin axle.
Further, as the preference, connect female head including outer cladding section, outer location section and the interior cladding block section of integrative setting, wherein, outer cladding section is the arc extension setting, outer cladding section with outer location section is connected and is set up, fixedly connected with on the outer wall of outer location section interior tunnel supporting steel sheet, be provided with the constant head tank on the inner wall of outer location section, outer location section is last the arc extension and is provided with interior cladding block section, interior cladding block section's outer wall extends to connect the inboard of the outer arc spacing section of public head, just interior cladding block section's inner wall extends to on the outer circumference wall of connecting pin axle, be provided with at least one slot on the interior cladding block section, the outer block card of connecting public head is gone into this ditch inslot and is set up.
Further, as the preference, the connection shell fragment includes the cutting ferrule head section, block section, interior location section, location arch and the extension pointed end that set up integratively, wherein, cutting ferrule head section card is established in the draw-in groove that the outer block section of connecting public head constitutes with interior block section, be provided with on the block section with the spread groove of the outer block head block of connecting public head, interior location section is along the inner wall extension setting of the outer cladding section of connecting female head, just interior location section's inner wall is along interior extension section's outer wall and the outer circumference wall of connecting pin axle extend, interior location section is gone up and is provided with the location arch corresponding to the position of positioning groove, extend pointed end follow interior location section begins along extend interior cladding block section and the space that encloses between the connecting pin axle.
Further, preferably, the male connection end and the female connection end are made of stainless steel, and the elastic connection piece is made of a high-elasticity steel plate by rolling.
Further, preferably, a drainage groove is formed in a side of the waterproof layer of the coal mine tunnel, which is far away from the outer tunnel supporting steel plate.
Compared with the prior art, the invention has the beneficial effects that:
the invention has simple structure and convenient use, the supporting steel plate is supported by adopting the connecting structure, the inner supporting steel plate can generate deformation with a certain angle, the steel plate is adapted to adjust the deformation when fracture stress concentration occurs in rock stratum is prevented, the stress concentration effect on the supporting steel plate can be prevented, the safety of steel plate supporting is improved, and the outer roadway supporting steel plate with auxiliary support is arranged outside, so that the overall stability of the supporting steel plate can be effectively improved.
Drawings
FIG. 1 is a schematic view of the supporting effect structure of a supporting connection device for a coal mine tunnel;
FIG. 2 is a schematic view of a partial enlarged structure of a supporting and connecting device for a coal mine tunnel according to the present invention;
FIG. 3 is a schematic view of a fine tuning swivel connection assembly of a support connection device for a coal mine tunnel according to the present invention;
wherein, 1, an inner roadway support steel plate, 2, a waterproof belt layer, 3, an outer roadway support steel plate, 4, a fine adjustment rotation connecting component, 5, a connecting bolt, 6, a positioning groove, 7, a connecting male head, 70, an outer arc limiting section, 71, an inner clamping section, 72, an outer clamping section, 73 and an outer clamping head, 74, inner extension section, 8, connecting spring piece, 80, cutting ferrule head section, 81, block section, 82, inner positioning section, 83, positioning protrusion, 84, extension tip, 9, connecting female head, 90, outer cladding section, 91, outer positioning section, 92, inner cladding block section, 10, connecting pin shaft.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a coal mine tunnel is with supporting connecting device, its includes interior tunnel supporting steel sheet 1, waterproof tape layer 2, outer tunnel supporting steel sheet 3, fine setting rotation coupling assembling 4 and connecting bolt 5, interior tunnel supporting steel sheet 1 and outer tunnel supporting steel sheet 3 adopt stock and anchor rope anchor to support in the lane group and the top of the roadway department, interior tunnel supporting steel sheet with be provided with waterproof tape layer 2 between the outer tunnel supporting steel sheet, interior tunnel supporting steel sheet 1 with still adopt between the outer tunnel supporting steel sheet 3 connecting bolt 5 connects fixedly together, a serial communication port, interior tunnel supporting steel sheet 1 with outer tunnel supporting steel sheet 3 all adopts sectional structure, and adopts fine setting rotation coupling assembling 4 to link together between the two sections adjacent interior tunnel supporting steel sheets, fine setting rotation coupling assembling 4 can realize rotating in the angle range of-3-3 DEG scope, has between the adjacent two sections outer tunnel supporting steel sheet and holds fine setting rotation coupling assembling pivoted holding groove.
As shown in fig. 2, the outer roadway support steel plate is provided with a positioning groove 6, and the connecting bolt is arranged in the positioning groove 6.
In this embodiment, as shown in fig. 3, the fine tuning rotating connection assembly includes a connection male head 7, a connection elastic sheet 8 and a connection female head 9, where an inner end of the connection male head 7 extends around and is set on an inner wall side of the connection female head 9, an inner end of the connection female head 9 extends around and is set on an inner wall side of the connection male head 7, a space surrounded by the inner wall side of the connection female head 9 and the inner wall side of the connection male head 7 accommodates a connection pin shaft 10, the connection male head 7 and the connection female head 9 can rotate around a central axis of the connection pin shaft 10 by an angle ranging from-3 to 3 degrees, the rotation of the angle range is realized by deformation of the connection male head, the connection elastic sheet 8 is further clamped on the connection male head 7, and the connection elastic sheet 8 extends to an outer circumferential wall of the connection pin shaft along an area between the connection male head and the connection female head.
Continuing to see fig. 3, the male connection head comprises an integrally arranged outer arc-shaped limiting section 70, an inner clamping section 71, an outer clamping section 72, an outer clamping head 73 and an inner extending section 74, wherein the outer wall of the outer arc-shaped limiting section 70 is connected with an inner roadway support steel plate, the outer arc-shaped limiting section 70 is connected with an arc-shaped inner clamping section 71 and an outer clamping section 72, a clamping groove for accommodating the end part of the connecting elastic sheet 8 so as to clamp the connecting elastic sheet is formed between the inner clamping section 71 and the outer clamping section 72, the end part of the outer clamping section 72 is provided with an outer clamping head extending inwards, the outer clamping head 73 is clamped into the connecting elastic sheet, the inner clamping section extends inwards to the inner extending section, and the arc-shaped inner diameter of the inner wall of the inner extending section 74 is gradually reduced so as to enable the inner extending section to extend and converge on the outer circumferential wall of the connecting pin shaft.
The connecting female head comprises an outer cladding section 90, an outer positioning section 91 and an inner cladding clamping section 92 which are integrally arranged, wherein the outer cladding section 90 extends in an arc shape, the outer cladding section 90 is connected with the outer positioning section 91, the outer positioning section 91 is fixedly connected with an inner roadway support steel plate, a positioning groove is formed in the inner wall of the outer positioning section 91, the inner cladding clamping section 92 extends in an arc shape on the outer positioning section, the outer wall of the inner cladding clamping section 92 extends to the inner side of an outer arc-shaped limiting section of the connecting male head, the inner wall of the inner cladding clamping section extends to the outer circumferential wall of the connecting pin shaft, at least one groove is formed in the inner cladding clamping section, and the outer clamping head of the connecting male head is clamped into the groove.
In this embodiment, the connection spring 8 includes a ferrule head section 80, a clamping section 81, an inner positioning section 82, a positioning protrusion 83 and an extending tip 84 that are integrally disposed, where the ferrule head section 80 is clamped in a clamping groove formed by an outer clamping section and an inner clamping section of the connection male head, the clamping section 81 is provided with a connecting groove that is clamped with the outer clamping section of the connection male head, the inner positioning section 82 extends along an inner wall of the outer cladding section of the connection female head, and the inner wall of the inner positioning section 82 extends along an outer wall of the inner extending section and an outer circumferential wall of the connecting pin, the positioning protrusion 83 is disposed on the outer wall of the inner positioning section 82 corresponding to the positioning groove, and the extending tip 84 extends from the inner positioning section along a space enclosed between the extending inner cladding clamping section and the connecting pin.
In order to ensure the supporting performance, the connecting male head and the connecting female head are made of stainless steel, and the connecting elastic sheet is formed by rolling a high-elasticity steel plate. A drainage groove is formed in one side, away from the outer roadway support steel plate, of the waterproof layer of the coal mine roadway.
The invention has simple structure and convenient use, the supporting steel plate is supported by adopting the connecting structure, the inner supporting steel plate can generate deformation with a certain angle, the steel plate is adapted to adjust the deformation when fracture stress concentration occurs in rock stratum is prevented, the stress concentration effect on the supporting steel plate can be prevented, the safety of steel plate supporting is improved, and the outer roadway supporting steel plate with auxiliary support is arranged outside, so that the overall stability of the supporting steel plate can be effectively improved.
Although embodiments of the present invention 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 therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a coal mine tunnel is with supporting connecting device, its includes interior tunnel supporting steel sheet, waterproof tape layer, outer tunnel supporting steel sheet, fine setting rotate coupling assembling and connecting bolt, interior tunnel supporting steel sheet and outer tunnel supporting steel sheet adopt stock and anchor rope anchor to support in the lane group and the top of the roadway department, be provided with waterproof tape layer between interior tunnel supporting steel sheet and the outer tunnel supporting steel sheet, still adopt between interior tunnel supporting steel sheet and the outer tunnel supporting steel sheet connecting bolt connect together fixedly, its characterized in that, interior tunnel supporting steel sheet with outer tunnel supporting steel sheet all adopts sectional type structure, and adopt fine setting to rotate coupling assembling to link together between the two sections adjacent interior tunnel supporting steel sheets, fine setting rotate coupling assembling can realize rotating at the angle range of-3-3 DEG scope, have between the adjacent two sections outer tunnel supporting steel sheet hold fine setting rotate coupling assembling pivoted holding tank;
the outer roadway support steel plate is provided with a positioning groove, and the connecting bolt is arranged in the positioning groove;
the fine-tuning rotating connecting assembly comprises a connecting male head, a connecting elastic piece and a connecting female head, wherein the inner end of the connecting male head is arranged on the inner wall side of the connecting female head in a surrounding mode, the inner end of the connecting female head is arranged on the inner wall side of the connecting male head in a surrounding mode, a space surrounded by the inner wall side of the connecting female head and the inner wall side of the connecting male head accommodates a connecting pin shaft, the connecting male head and the connecting female head can rotate at an angle ranging from-3 degrees to 3 degrees around the central axis of the connecting pin shaft, rotation of the angle range is achieved through deformation of the connecting male head, the connecting elastic piece is further clamped on the connecting male head, and the connecting elastic piece extends to the outer circumferential wall of the connecting pin shaft along the area between the connecting male head and the connecting female head;
the connecting male head comprises an outer arc-shaped limiting section, an inner clamping section, an outer clamping head and an inner extending section which are integrally arranged, wherein the outer wall of the outer arc-shaped limiting section is connected with an inner roadway support steel plate, the outer arc-shaped limiting section is connected with an arc-shaped inner clamping section and an outer clamping section, a clamping groove which is used for accommodating the end part of the connecting elastic sheet so as to clamp the connecting elastic sheet is formed between the inner clamping section and the outer clamping section, the end part of the outer clamping section is provided with an outer clamping head which extends inwards, the outer clamping head is clamped into the connecting elastic sheet, the inner clamping section extends inwards to the inner extending section in an arc shape, and the inner diameter of the arc-shaped inner wall of the inner extending section gradually decreases so as to enable the inner extending section to extend and converge on the outer circumferential wall of the connecting pin shaft;
the connecting female head comprises an outer cladding section, an outer positioning section and an inner cladding clamping section which are integrally arranged, wherein the outer cladding section extends in an arc shape, the outer cladding section is connected with the outer positioning section, the outer wall of the outer positioning section is fixedly connected with the inner roadway support steel plate, the inner wall of the outer positioning section is provided with a positioning groove, the outer positioning section extends in an arc shape to be provided with the inner cladding clamping section, the outer wall of the inner cladding clamping section extends to the inner side of the outer arc-shaped limiting section of the connecting male head, the inner wall of the inner cladding clamping section extends to the outer circumferential wall of the connecting pin shaft, at least one groove is formed in the inner cladding clamping section, and the outer clamping head of the connecting male head is clamped into the groove;
the connecting elastic sheet comprises a clamping sleeve head section, a clamping section, an inner positioning section, a positioning protrusion and an extending tip, wherein the clamping sleeve head section is clamped in a clamping groove formed by an outer clamping section and an inner clamping section of the connecting male head, a connecting groove clamped with the outer clamping head of the connecting male head is formed in the clamping section, the inner positioning section extends along the inner wall of an outer covering section of the connecting female head, the inner wall of the inner positioning section extends along the outer wall of the inner extending section and the outer circumferential wall of the connecting pin shaft, the positioning protrusion is arranged on the outer wall of the inner positioning section at a position corresponding to the positioning groove, and the extending tip extends from the inner positioning section along a space enclosed between the extending inner covering clamping section and the connecting pin shaft.
2. The support connection device for coal mine roadways as claimed in claim 1, wherein: the male connection head and the female connection head are made of stainless steel, and the elastic connection piece is formed by rolling a high-elasticity steel plate.
3. A coal mine roadway support connection device as claimed in any one of claims 1-2, wherein: a drainage groove is formed in one side, away from the outer roadway support steel plate, of the waterproof layer of the coal mine roadway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583478.5A CN107420117B (en) | 2017-07-18 | 2017-07-18 | Supporting and connecting device for coal mine tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710583478.5A CN107420117B (en) | 2017-07-18 | 2017-07-18 | Supporting and connecting device for coal mine tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107420117A CN107420117A (en) | 2017-12-01 |
| CN107420117B true CN107420117B (en) | 2023-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710583478.5A Active CN107420117B (en) | 2017-07-18 | 2017-07-18 | Supporting and connecting device for coal mine tunnel |
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| Country | Link |
|---|---|
| CN (1) | CN107420117B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111335925B (en) * | 2020-03-27 | 2021-09-03 | 赤峰西拉沐沦(集团)公格营子煤业有限公司 | Coal mine safety construction method |
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| CN102606181A (en) * | 2012-03-19 | 2012-07-25 | 中国矿业大学 | Hyperstatic scour prevention four-dimensional roadway support device and support method thereof |
| CN104022446A (en) * | 2014-06-24 | 2014-09-03 | 国家电网公司 | Control cabinet convenient to hold signboard |
| CN205400760U (en) * | 2016-03-07 | 2016-07-27 | 河南理工大学 | With mining U shaped steel support of contractibility of stock coupling |
| CN106050281A (en) * | 2016-08-10 | 2016-10-26 | 中国矿业大学(北京) | Anchor-cable box girder truss structure for coal mine tunnel roof support and supporting method |
| CN106150526A (en) * | 2016-08-31 | 2016-11-23 | 华北科技学院 | A kind of roadway support device |
| DE102015216536B3 (en) * | 2015-08-28 | 2017-02-16 | Thyssenkrupp Ag | Clamping device of an adjustable steering column for motor vehicles |
| CN206129296U (en) * | 2016-08-31 | 2017-04-26 | 华北科技学院 | Coal mine tunnel suspension device |
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2017
- 2017-07-18 CN CN201710583478.5A patent/CN107420117B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606181A (en) * | 2012-03-19 | 2012-07-25 | 中国矿业大学 | Hyperstatic scour prevention four-dimensional roadway support device and support method thereof |
| CN104022446A (en) * | 2014-06-24 | 2014-09-03 | 国家电网公司 | Control cabinet convenient to hold signboard |
| DE102015216536B3 (en) * | 2015-08-28 | 2017-02-16 | Thyssenkrupp Ag | Clamping device of an adjustable steering column for motor vehicles |
| CN205400760U (en) * | 2016-03-07 | 2016-07-27 | 河南理工大学 | With mining U shaped steel support of contractibility of stock coupling |
| CN106050281A (en) * | 2016-08-10 | 2016-10-26 | 中国矿业大学(北京) | Anchor-cable box girder truss structure for coal mine tunnel roof support and supporting method |
| CN106150526A (en) * | 2016-08-31 | 2016-11-23 | 华北科技学院 | A kind of roadway support device |
| CN206129296U (en) * | 2016-08-31 | 2017-04-26 | 华北科技学院 | Coal mine tunnel suspension device |
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| Publication number | Publication date |
|---|---|
| CN107420117A (en) | 2017-12-01 |
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