CN111088985A - Roadway supporting device for coal mine underground operation - Google Patents
Roadway supporting device for coal mine underground operation Download PDFInfo
- Publication number
- CN111088985A CN111088985A CN202010039330.7A CN202010039330A CN111088985A CN 111088985 A CN111088985 A CN 111088985A CN 202010039330 A CN202010039330 A CN 202010039330A CN 111088985 A CN111088985 A CN 111088985A
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- supporting
- coal mine
- roadway
- sliding
- flexible
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- 239000003245 coal Substances 0.000 title claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- CBVWMGCJNPPAAR-HJWRWDBZSA-N (nz)-n-(5-methylheptan-3-ylidene)hydroxylamine Chemical compound CCC(C)C\C(CC)=N/O CBVWMGCJNPPAAR-HJWRWDBZSA-N 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000012783 reinforcing fiber Substances 0.000 claims description 2
- 230000002146 bilateral effect Effects 0.000 claims 1
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/003—Caps for supporting mine roofs with essential hydraulic elements
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
Abstract
The invention discloses a roadway supporting device for coal mine underground operation, which comprises main supporting columns, a cross beam and slide rails, wherein two ends of the cross beam are symmetrically provided with two main supporting columns, the main supporting columns and the cross beam are combined with each other to form a section of main supporting node of a coal mine underground roadway, the coal mine underground roadway is fixedly supported in a frame mode, the coal mine underground roadway is provided with a plurality of main supporting nodes, the main supporting nodes are mutually connected through the slide rails, the slide rails are provided with two, the cross sections of the slide rails are in an inverted E shape, the slide rails are made of high-quality steel bodies, the connection firmness is ensured, a plurality of subsection supporting auxiliary plates are connected onto the slide rails in a sliding mode, local support is carried out on each section of the coal mine underground roadway, and an attachment net is arranged above the subsection supporting auxiliary plates.
Description
Technical Field
The invention relates to the technical field of coal mine supporting equipment, in particular to a roadway supporting device for coal mine underground operation.
Background
The aim of roadway support under a coal mine is to ensure the stability of roadway surrounding rock mass, so that the roadway surrounding rock mass is not greatly collapsed, thereby protecting the life safety of workers and achieving the purpose of safe production, the anchor bolt support is one of the most common support modes at present, the support effect has better performance, for the anchor bolt support roadway, along with the coal seam mining, the rock stratum of the roadway support is easy to slide, the coal mine roadway fault is easy to occur, the support stress is not uniform due to serious deviation, even the local collapse occurs, and in the mining process, the support device cannot adapt to various forms of roofs due to the uneven surface of the roof in the coal mine roadway, the contact area is too small during the support, the support capability under stress action is poor, and certain potential safety hazard exists, so that a roadway support device for the coal mine underground operation is necessary to be provided, to solve the above problems.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a roadway supporting device for underground coal mine operation comprises main supporting columns, beams, connecting assemblies and sliding rails, wherein two main supporting columns are symmetrically arranged at two ends of each beam, the connecting assemblies are fixed on the upper end faces of the beams, the main supporting columns and the beams are combined with each other to form main supporting nodes of one section of underground coal mine roadway, the underground coal mine roadway is fixedly supported in a frame mode, the underground coal mine roadway is provided with a plurality of main supporting nodes, the main supporting nodes are mutually connected through the sliding rails, two sliding rails are arranged between every two adjacent main supporting nodes, two ends of each sliding rail are fixedly connected through the connecting assemblies, the cross section of each sliding rail is inverted E-shaped, the main supporting nodes are made of high-quality steel bodies, the connection firmness is guaranteed, a plurality of subsection supporting auxiliary plates are slidably connected onto the sliding rails, and local supporting is carried out on each section of the underground coal mine roadway, an attaching net is arranged above the subsection supporting auxiliary plate.
As a preferable technical scheme of the invention, the main body of the main supporting column is of a telescopic structure, the supporting height is adjusted through a built-in hydraulic cylinder, the distance between each main supporting point is within the range of 10m-15m, and the distance between two adjacent segmented supporting auxiliary plates is between 1.5m-2.5 m.
As a preferable technical scheme of the invention, the segmented support subplate comprises a sliding bottom plate, a flexible support panel, a first connecting hydraulic rod and a second connecting hydraulic rod, the flexible support panel is covered and installed on the upper end surface of the sliding bottom plate, a working groove is arranged on one side end surface of the sliding bottom plate close to the flexible support panel, the first connecting hydraulic rod is installed in the middle position in the working groove, the second connecting hydraulic rod is provided with two connecting hydraulic rods, the two connecting hydraulic rods are symmetrically distributed on two sides of the first connecting hydraulic rod, the tail ends of the first connecting hydraulic rod and the second connecting hydraulic rod are provided with friction balls, one side end surface of the flexible support panel close to the sliding bottom plate is provided with a spherical groove, the two sides of the spherical groove are symmetrically provided with sliding grooves, the first connecting hydraulic rod is connected with the flexible support panel through the mutual matching between the friction balls at the output ends and the spherical groove, the connecting rod two is mutually supported and is linked up with flexible supporting panel in the spout through friction ball sliding connection, flexible supporting panel's both sides position is rotated and is connected with the joint support post, the other end joint of joint support post is in sliding bottom plate, sliding cavity has been seted up to sliding bottom plate's lower terminal surface both sides position symmetry, sliding cavity's inner wall upper surface mounting have with the corresponding pulley of slide rail, pulley roll connection is on the slide rail.
As a preferred technical scheme of the invention, the flexible supporting panel is made of high-toughness composite materials, the metal sheet is arranged outside the flexible supporting panel, the reinforced fibers are arranged inside the flexible supporting panel, the thickness of the wall of the flexible supporting panel is 50-80 mm, the maximum value of the radian of the curved surface of the flexible supporting panel is 85 degrees, and the flexible supporting panel presents various change forms along with the change of the telescopic length of the first connecting hydraulic rod and the second connecting hydraulic rod so as to adapt to the stress from different directions of the top plate of the underground roadway of the coal mine.
As a preferable technical scheme, the connecting assembly comprises a first connecting block and a second connecting block, a connecting opening of the first connecting block and the second connecting block is arranged in a back direction, the first connecting block and the second connecting block are rotatably connected through a fixing shaft rod, threaded connecting holes are formed in two ends of the sliding rail, and the first connecting block and the second connecting block respectively penetrate through the threaded connecting holes through bolts to be fixed with the two ends of the sliding rail.
Compared with the prior art, the invention provides a roadway support device for underground coal mine operation, which has the following beneficial effects:
1. the main supporting nodes are arranged in the underground coal mine roadway in a segmented mode, the weak supporting area in the roadway can be emphasized in a targeted mode, the main supporting nodes are arranged in the weak area, collapse accidents are prevented, the supporting distance between the segmented supporting auxiliary plates is adjusted by the aid of the sliding rails, and the flexibility is high;
2. according to the invention, the plurality of groups of segmented supporting auxiliary plates are arranged on the sliding rail, the coal mine roadway is supported by the supporting auxiliary plates, and the flexible supporting panel is adjusted by adjusting the telescopic lengths of the first connecting hydraulic rod and the second connecting hydraulic rod, so that the flexible supporting panel can present different bending forms, and the supporting structure can adapt to underground roadway roofs in various conditions and has higher flexibility;
3. the connecting component is used for connecting and fixing the sliding rails, so that the mounting and dismounting are convenient, and the supporting device can be repeatedly utilized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the horizontal configuration of the flexible support panel of the present invention;
FIG. 3 is a schematic view of the convex curved shape of the flexible support panel of the present invention;
FIG. 4 is a schematic view of a concave-down curved configuration of the flexible support panel of the present invention;
FIG. 5 is a schematic view of the undulating curved configuration of the flexible support panel of the present invention;
FIG. 6 is a cross-sectional view of the connecting assembly of the present invention;
in the figure: 1. a main support column; 2. supporting the auxiliary plate in sections; 201. a sliding bottom plate; 202. the first hydraulic rod is connected; 203. the hydraulic rod II is connected; 204. connecting the supporting columns; 205. a chute; 206. a friction ball; 207. a flexible support panel; 208. a sliding cavity; 209. a pulley; 3. a slide rail; 4. a cross beam; 5. a connecting assembly; 501. a first connecting block; 502. fixing the shaft lever; 503. a second connecting block; 504. and (4) bolts.
Detailed Description
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a roadway support device for colliery borehole operation is used, includes main tributary dagger 1, crossbeam 4, coupling assembling and slide rail 3, its characterized in that: the two ends of the cross beam 4 are symmetrically provided with two main supporting columns 1, the upper end face of the cross beam 4 is fixed with a connecting assembly 5, the main supporting columns 1 and the cross beam 4 are combined with each other to form a main supporting node of one section of coal mine underground roadway, the coal mine underground roadway is fixedly supported in a frame type mode, the coal mine underground roadway is provided with a plurality of main supporting nodes, each main supporting node is mutually connected through a sliding rail 3, two sliding rails 3 are arranged between the adjacent main supporting nodes, the two ends of each sliding rail 3 are fixedly connected through the connecting assembly 5, the cross section of each sliding rail 3 is in an inverted E shape, the material of each sliding rail 3 is a high-quality steel body, the connection firmness is ensured, a plurality of subsection supporting auxiliary plates 2 are slidably connected onto the sliding rails 3, each section of the coal mine roadway is locally supported, and an attachment net (not shown in the figure) is arranged above the subsection, the main supporting nodes are arranged in the underground coal mine roadway in a segmented mode, the weak area of the roadway can be supported in a targeted mode, the main supporting nodes are arranged in the weak area, the collapse accident of the main supporting nodes is prevented, the main supporting nodes are supported in the relatively tight area, the multi-group segmented supporting auxiliary plates are used for supporting, on one hand, the internal stress of the coal mine is dispersed in an all-round mode, the stress of the supporting device is balanced, on the other hand, the effective contact area of the device is increased, and the device is prevented from being broken due to overlarge stress.
In this embodiment, the main body of the main support column 1 is a telescopic structure, the support height is adjusted by a built-in hydraulic cylinder, the distance between each main support point is within the range of 10m to 15m, and the distance between two adjacent sectional support sub-plates 2 is between 1.5m to 2.5 m.
In this embodiment, the segmented support sub-plate 2 includes a sliding bottom plate 201, a flexible support panel 207, a first connecting hydraulic rod 202 and a second connecting hydraulic rod 203, the flexible support panel 207 is covered and installed on the upper end surface of the sliding bottom plate 201, a working groove is provided on one side end surface of the sliding bottom plate 201 close to the flexible support panel 207, the first connecting hydraulic rod 202 is installed in the middle position inside the working groove, the second connecting hydraulic rod 203 is provided with two connecting hydraulic rods 203, the two connecting hydraulic rods 203 are symmetrically distributed on two sides of the first connecting hydraulic rod 202, friction balls 206 are provided at the ends of the output ends of the first connecting hydraulic rod 202 and the second connecting hydraulic rod 203, a spherical groove is provided on one side end surface of the flexible support panel 207 close to the sliding bottom plate 201, sliding grooves 205 are symmetrically provided on two sides of the spherical groove, the first connecting hydraulic rod 202 is connected with the flexible support panel 207 through the mutual fit between the friction balls 206 and the spherical groove, the second connecting rod 203 is connected in the sliding groove 205 in a sliding manner through a friction ball 206 and is matched and connected with the flexible supporting panel 207, the two side positions of the flexible supporting panel 207 are rotatably connected with a connecting support column 204, the other end of the connecting support column 204 is clamped in the sliding base plate 201, two side positions of the lower end face of the sliding base plate 201 are symmetrically provided with sliding cavities 208, the upper surface of the inner wall of each sliding cavity 208 is provided with a pulley 209 corresponding to the sliding rail 3, the pulleys 209 are connected on the sliding rails 3 in a rolling manner, the upper end of the sliding base plate 207 is provided with the flexible supporting panel, and the flexible supporting panel is regulated and controlled by connecting a first hydraulic rod and a second hydraulic rod, so that the flexible supporting panel is subjected to bending deformation, the main stress of the base plate above the inner part of the coal mine roadway is subjected to centralized processing, the device is further suitable for roadway roofs in different forms, and has high flexibility.
In this embodiment, the flexible supporting panel 207 is made of a high-toughness composite material, a metal sheet is arranged outside the flexible supporting panel, reinforcing fibers are arranged inside the flexible supporting panel, the thickness of the wall of the flexible supporting panel 207 is 50mm to 80mm, the maximum value of the radian of the curved surface of the flexible supporting panel 207 is 85 degrees, the flexible supporting panel 207 is in various change forms along with the change of the telescopic lengths of the first connecting hydraulic rod 202 and the second connecting hydraulic rod 203, so that the flexible supporting panel is suitable for the stress from different directions of the top plate of the underground coal mine roadway, and has high flexibility.
Referring to fig. 6, in this embodiment, the connection assembly 5 includes a first connection block 501 and a second connection block 503, a connection opening of the first connection block 501 and the second connection block 503 is arranged in a back direction, the first connection block 501 and the second connection block 503 are rotatably connected through a fixing shaft rod 502, threaded connection holes are formed in two ends of the slide rail 3, the first connection block 501 and the second connection block 503 pass through the threaded connection holes through bolts 504 respectively and are fixed to two ends of the slide rail 3, so that the mounting and the dismounting are convenient, and secondary utilization of the supporting device can be realized.
The first embodiment is as follows: referring to fig. 2, when the stress direction of the roof inside the coal mine tunnel is vertical downward, the position of the sectional supporting sub-plate is adjusted through the sliding fit of the pulley and the sliding rail, so that the sectional supporting sub-plate supports the coal mine tunnel in a sectional manner, the supporting height of the main supporting column is adjusted, the flexible supporting panel is completely contacted with the surface of the roof, and at the moment, the stress direction in the roof of the tunnel is vertical to the supporting surface of the flexible supporting panel, and the roof of the tunnel is supported.
Example two: referring to fig. 3, when the stress direction of the inside roof of coal mine tunnel is the inward contraction state, connect hydraulic stem one and be connected hydraulic stem two through adjusting, make the extension length who connects hydraulic stem one be greater than and connect hydraulic stem two, flexible supporting panel is the arc and outside protruding this moment, utilize and connect hydraulic stem one to offset the perpendicular stress in the roof, the connection hydraulic stem two and the connecting strut of both sides offset the side stress, make the tangential direction of stress direction perpendicular to flexible supporting panel contact surface all the time, be applicable to the inside tight real coal mine tunnel relatively of roof.
Embodiment three, refer to fig. 4, when the stress direction of the inside roof of coal mine tunnel is outside state of dispersing, connect hydraulic stem one and connect hydraulic stem two through adjusting, make the extension length who connects hydraulic stem one be less than and connect hydraulic stem two, flexible supporting panel is the arc and inwards caves in this moment, utilize and connect hydraulic stem one to offset the perpendicular stress in the roof, the connection hydraulic stem two and the connecting strut of both sides offset the side stress, make the tangential direction of stress direction perpendicular to flexible supporting panel contact surface all the time, be applicable to the inside soft coal mine tunnel relatively of roof.
In the fourth embodiment, referring to fig. 5, when the stress direction of the roof in the coal mine tunnel is outwards dispersed in the middle and the two sides are inwards contracted, the first connecting hydraulic rod and the second connecting hydraulic rod are adjusted, so that the extending length of the first connecting hydraulic rod is smaller than that of the second connecting hydraulic rod, and the flexible supporting panel is in wave type supporting and is suitable for the coal mine tunnel with the soft inner part and the relatively compact two sides in the middle of the roof.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the inventive concept within the technical scope of the present invention, and the technical solution and the inventive concept thereof should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a roadway support device for colliery borehole operation usefulness, includes main tributary dagger (1), crossbeam (4), coupling assembling and slide rail (3), its characterized in that: the two ends of the cross beam (4) are symmetrically provided with two main supporting columns (1), the upper end face of the cross beam (4) is fixed with a connecting assembly (5), the main supporting columns (1) and the cross beam (4) are combined with each other to form a main supporting node of one section of coal mine underground roadway, the coal mine underground roadway is fixedly supported in a frame mode, the coal mine underground roadway is provided with a plurality of main supporting nodes, the main supporting nodes are mutually connected through sliding rails (3), two sliding rails (3) are arranged between every two adjacent main supporting nodes, the two ends of each sliding rail (3) are fixedly connected through the connecting assembly (5), the cross section of each sliding rail (3) is in an inverted E shape, the material of each sliding rail is high-quality steel, the connection firmness is ensured, a plurality of subsection supporting auxiliary plates (2) are connected onto each sliding rail (3), and each section of the coal mine roadway is locally supported, an attaching net is arranged above the subsection supporting auxiliary plate (2).
2. The roadway support device for the underground coal mine operation according to claim 1, wherein: the main body of the main supporting column (1) is of a telescopic structure, the supporting height is adjusted through a built-in hydraulic cylinder, the distance between every two main supporting points is within the range of 10m-15m, and the distance between every two adjacent sectional supporting auxiliary plates (2) is 1.5m-2.5 m.
3. The roadway support device for the underground coal mine operation according to claim 1, wherein: the sectional support auxiliary plate (2) comprises a sliding bottom plate (201), a flexible support panel (207), a first connecting hydraulic rod (202) and a second connecting hydraulic rod (203), the flexible support panel (207) is covered on the upper end face of the sliding bottom plate (201), a working groove is formed in one side end face, close to the flexible support panel (207), of the sliding bottom plate (201), the first connecting hydraulic rod (202) is installed in the middle of the inside of the working groove, the second connecting hydraulic rod (203) is provided with two connecting hydraulic rods, the two connecting hydraulic rods (203) are symmetrically distributed on two sides of the first connecting hydraulic rod (202), friction balls (206) are arranged at the tail ends of output ends of the first connecting hydraulic rod (202) and the second connecting hydraulic rod (203), a spherical groove is formed in one side end face, close to the sliding bottom plate (201), of the flexible support panel (207), and sliding grooves (205) are symmetrically formed in two sides of the spherical groove, connect hydraulic stem one (202) and be connected with flexible supporting panel (207) through mutually supporting between the friction ball (206) of output and the spherical groove, connecting rod two (203) link up with flexible supporting panel (207) mutually supporting in spout (205) through friction ball (206) sliding connection, the both sides position of flexible supporting panel (207) is rotated and is connected with connecting support post (204), the other end joint of connecting support post (204) is in sliding bottom plate (201), sliding cavity (208) have been seted up to the lower terminal surface bilateral position symmetry of sliding bottom plate (201), the inner wall upper surface of sliding cavity (208) install with corresponding pulley (209) of slide rail (3), pulley (209) roll connection is on slide rail (3).
4. The roadway support device for the underground coal mine operation according to claim 3, wherein: the flexible supporting panel (207) is made of a high-toughness composite material, a metal sheet is arranged outside the flexible supporting panel, reinforcing fibers are arranged inside the flexible supporting panel, the thickness of the wall of the flexible supporting panel (207) is 50-80 mm, the maximum value of the radian of the curved surface of the flexible supporting panel (207) is 85 degrees, and the flexible supporting panel (207) is in various changing forms along with the change of the telescopic lengths of the first connecting hydraulic rod (202) and the second connecting hydraulic rod (203) so as to adapt to the stress from different directions of the top plate of the underground coal mine roadway.
5. The roadway support device for the underground coal mine operation according to claim 1, wherein: coupling assembling (5) are including connecting block one (501) and connecting block two (503), the connection opening of connecting block one (501) and connecting block two (503) sets up dorsad, just connecting block one (501) rotate with connecting block two (503) through fixed axostylus axostyle (502) and be connected, threaded connection hole has all been seted up at the both ends of slide rail (3), connecting piece block one (501) passes through bolt (504) respectively with connecting block two (503) threaded connection hole is fixed mutually with slide rail (3) both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010039330.7A CN111088985B (en) | 2020-01-13 | 2020-01-13 | Roadway supporting device for coal mine underground operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010039330.7A CN111088985B (en) | 2020-01-13 | 2020-01-13 | Roadway supporting device for coal mine underground operation |
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| Publication Number | Publication Date |
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| CN111088985A true CN111088985A (en) | 2020-05-01 |
| CN111088985B CN111088985B (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010039330.7A Active CN111088985B (en) | 2020-01-13 | 2020-01-13 | Roadway supporting device for coal mine underground operation |
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| Country | Link |
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| CN (1) | CN111088985B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709587A (en) * | 2021-01-20 | 2021-04-27 | 马力 | Umbrella-shaped point column type temporary supporting structure of coal mine tunnel |
| CN113279791A (en) * | 2021-07-05 | 2021-08-20 | 杜志峰 | Asymmetric anchor beam structure for supporting gob-side roadway roof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4091628A (en) * | 1976-09-27 | 1978-05-30 | Jay Hilary Kelley | Prestressed elastic arched mine roof support |
| DE3007262A1 (en) * | 1980-02-27 | 1981-09-03 | Ruhrkohle Ag, 4300 Essen | Mine gallery arched support frames cap screen - has segment overlaps combined with cap hangings as removable entity |
| DE3210529C1 (en) * | 1982-03-23 | 1983-09-29 | Bergwerksverband Gmbh, 4300 Essen | Flexible concrete segment lining |
| CN206429254U (en) * | 2017-01-18 | 2017-08-22 | 王凯 | A kind of inner surface of tunnel waterproof material sprays floating device |
| CN107100269A (en) * | 2016-11-17 | 2017-08-29 | 中通钢构股份有限公司 | A kind of node of steel pipe intercolumniation connection of band splicing sleeve pipe and preparation method thereof |
| CN208586892U (en) * | 2018-06-16 | 2019-03-08 | 哈尔滨鸿盛建筑材料制造股份有限公司 | Assembled steel skeleton template |
| CN110145342A (en) * | 2019-06-06 | 2019-08-20 | 河北省交通规划设计院 | A kind of tunnel support device that stability is high |
| CN110645034A (en) * | 2019-10-29 | 2020-01-03 | 辽宁工程技术大学 | Sliding type flexible advance support mechanism and method |
-
2020
- 2020-01-13 CN CN202010039330.7A patent/CN111088985B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4091628A (en) * | 1976-09-27 | 1978-05-30 | Jay Hilary Kelley | Prestressed elastic arched mine roof support |
| DE3007262A1 (en) * | 1980-02-27 | 1981-09-03 | Ruhrkohle Ag, 4300 Essen | Mine gallery arched support frames cap screen - has segment overlaps combined with cap hangings as removable entity |
| DE3210529C1 (en) * | 1982-03-23 | 1983-09-29 | Bergwerksverband Gmbh, 4300 Essen | Flexible concrete segment lining |
| CN107100269A (en) * | 2016-11-17 | 2017-08-29 | 中通钢构股份有限公司 | A kind of node of steel pipe intercolumniation connection of band splicing sleeve pipe and preparation method thereof |
| CN206429254U (en) * | 2017-01-18 | 2017-08-22 | 王凯 | A kind of inner surface of tunnel waterproof material sprays floating device |
| CN208586892U (en) * | 2018-06-16 | 2019-03-08 | 哈尔滨鸿盛建筑材料制造股份有限公司 | Assembled steel skeleton template |
| CN110145342A (en) * | 2019-06-06 | 2019-08-20 | 河北省交通规划设计院 | A kind of tunnel support device that stability is high |
| CN110645034A (en) * | 2019-10-29 | 2020-01-03 | 辽宁工程技术大学 | Sliding type flexible advance support mechanism and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709587A (en) * | 2021-01-20 | 2021-04-27 | 马力 | Umbrella-shaped point column type temporary supporting structure of coal mine tunnel |
| CN113279791A (en) * | 2021-07-05 | 2021-08-20 | 杜志峰 | Asymmetric anchor beam structure for supporting gob-side roadway roof |
| CN113279791B (en) * | 2021-07-05 | 2023-11-21 | 华晋焦煤有限责任公司 | Asymmetric anchor beam structure for supporting roof of gob-side entry |
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| Publication number | Publication date |
|---|---|
| CN111088985B (en) | 2021-04-06 |
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