CN103422870B - Super high seam mining full height roof timbering method - Google Patents
Super high seam mining full height roof timbering method Download PDFInfo
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- CN103422870B CN103422870B CN201310319971.8A CN201310319971A CN103422870B CN 103422870 B CN103422870 B CN 103422870B CN 201310319971 A CN201310319971 A CN 201310319971A CN 103422870 B CN103422870 B CN 103422870B
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Abstract
Super high seam mining full height roof timbering method provided by the invention; belong to technical field of coal exploitation; mainly solving after prior art exists caving is with many hidden danger such as water, fire, gas and percussive pressure and top coal to lose too many; cannot the problem of secondary recovery second mining; comprise and dig support top tunnel (3); installing frame girder cantilever support (2); catch net (15) is installed; the coal seam, top of super high seam under exploitation cantilever (9); supporting top net (16) is installed; dig light hydraulic support work plane (13), implement light hydraulic support work plane Sub-Level Caving, transport Sub-Level Caving.Being convenient to goaf, to carry out the long-acting stage in time airtight, eradicates goaf and leave over the spontaneous combustion hidden danger that folder coal causes.
Description
Technical field
The invention belongs to technical field of coal exploitation, be specifically related to super high seam mining full height roof timbering method.
Background technology
The safety of the coal winning technology of coal mining, the rate of recovery of coal resources requires more and more higher, old mine ubiquity ocurrence of coal seam block section is undesirable, field with "nine squares" features as poor geologic condition, mine is reformed coal-mining method, is undergone technological transformation and expansion investments limited fund, and stope is not suitable for generally adopting large longwell (more than 150 meters) to mine and heavy support Sub-Level Caving technology.At present, adopt mining technology, after there is caving, be with many hidden danger such as water, fire, gas and percussive pressure and top coal to lose too many, cannot the problem of secondary recovery second mining.
Summary of the invention
The object of the invention is to solve prior art Problems existing, a kind of more than 12 meters super high seam mining full height roof timbering methods are provided.
The present invention solves the problems of the technologies described above the technical scheme taked to be:
Super high seam mining full height roof timbering method, comprises and digs support top tunnel, installing frame girder cantilever support, install catch net, under exploitation cantilever, the coal seam, top of super high seam, installs supporting top net, dig light hydraulic support work plane, implement light hydraulic support work plane Sub-Level Caving, transport Sub-Level Caving; Be characterized in: the concrete steps of its method are as follows:
(1) support top tunnel is dug
Laterally locate in a distance at edge, exploiting field, top, coal seam, dig two the support top tunnels adapted with frame girder cantilever support cross section;
(2) installing frame girder cantilever support
Frame girder cantilever support is transported into support top tunnel, and expansion bracket Tou Yudi lane work plane is concordant; Cut eye place at stope and support arm is installed, support the roof that the palm launches support works face, described support arm is arranged on expansion bracket head, supports the palm and is arranged on support arm external part, described expansion bracket head is arranged on the termination of cantilever, and described cantilever is arranged on the rear end of framework cantilever support; Hydraulic prop on frame girder cantilever support is stretched out, makes each hydraulic prop hold out against roof;
(3) catch net is installed
At the structure of an essay guarantee for a person given by a shopkeeper protecting wire net of two frame girder cantilever support expansion bracket heads, catch net is sagging and be fixed on seat earth;
(4) coal seam, top of super high seam under cantilever is exploited
Lane work plane top on earth, coal seam under exploitation cantilever, make end, coal seam form slope, a coal seam, the angle of this slope and frame girder cantilever frame bottom plane is 50 ~ 70 degree;
(5) supporting top net is installed
Held on the net on supporting top and be fixed on bottom two frame girder cantilever stent support, the slope tension that supporting top net is formed along the coal seam, top of super high seam under the 4th step exploitation cantilever, its lower end is fixed on seat earth;
(6) light hydraulic support work plane is dug
In bottom, coal seam, more than seat earth dig light hydraulic support work plane, advance the degree of depth suitable with jib-length;
(7) light hydraulic support work plane Sub-Level Caving is implemented
Movable light support, work plane Sub-Level Caving;
(8) Sub-Level Caving is transported
By transportation roadway, transported by Sub-Level Caving, work plane is pushed ahead to cantilever root;
(9) move forward frame girder cantilever support
Frame girder cantilever support is advanced in support top tunnel, concordant with rear end, coal seam to cantilever rear end, move forward catch net lower end fixed point simultaneously;
(10) above step (4) is repeated to (9), until support top tunnel terminal;
Work plane laterally moves to end, coal seam, repeats step (1) to (10), until the coal seam within the scope of face length has all been adopted.
The present invention compared with prior art, has following beneficial effect:
(1) owing to have employed frame girder cantilever support, being convenient to goaf, to carry out the long-acting stage in time airtight, the transport of facility and material and stake.Such as water filling, slip casting, gas injection, filling yellow mud, build build partition wall airtight;
(2) effectively can remove the dead coal of hard coal of the loose float coal in top, coal seam and top board angle eaves, eradicate goaf and leave over the spontaneous combustion hidden danger of pressing from both sides coal and causing;
(3) emergency exit ensureing goaf work plane can effectively be increased, the timely safe escape of prevention goaf gushing water and personnel;
(4) the ore deposit pressure rock creating minimum distance for the management of roof moves the convenient operating condition of observation and support top, caving;
(5) improve and expand effective way and the scope of drawing-off gas, improve the anti-disaster ability of mine.
Accompanying drawing explanation
Fig. 1 is coal-face top view of the present invention;
Fig. 2 is A-A sectional drawing in Fig. 1.
In figure: 1-goaf; 2-frame girder cantilever support; 3-support top tunnel; 5-along end fully mechanized coal face transportation roadway; 6-support the palm; 7-support arm; 8-roof; 9-cantilever; 10-hydraulic prop; 11-angle; 12-coal seam; 13-light hydraulic support work plane; 14-seat earth; 15-catch net; 16-supporting top net; 17-expansion bracket head.
Detailed description of the invention
As depicted in figs. 1 and 2, super high seam mining full height roof timbering method, comprise and dig support top tunnel 3, installing frame girder cantilever support 2, installs catch net 15, the coal seam, top of exploitation cantilever 9 times super high seams, supporting top net 16 is installed, dig light hydraulic support work plane 13, implement light hydraulic support work plane Sub-Level Caving, transport Sub-Level Caving; Be characterized in: the concrete steps of its method are as follows:
(1) support top tunnel 3 is dug
At edge, exploiting field, top, coal seam laterally at a distance of 15 meters of, dig two the support top tunnels 3 adapted with frame girder cantilever support cross section;
(2) installing frame girder cantilever support 2
Frame girder cantilever support 2 is transported into support top tunnel 3, and expansion bracket Tou17Yu Di lane work plane is concordant; Cut eye place at stope and support arm 7 is installed, support the roof 8 that the palm 6 launches support works face, described support arm 7 is arranged on expansion bracket head 17, support the palm 6 and be arranged on support arm external part, described expansion bracket head 17 is arranged on the termination of cantilever 9, and described cantilever 9 is arranged on the rear end of framework cantilever support 2; Hydraulic prop 10 on frame girder cantilever support 2 is stretched out, makes each hydraulic prop hold out against roof 8;
(3) catch net 15 is installed
At the structure of an essay guarantee for a person given by a shopkeeper protecting wire net 15 of two frame girder cantilever support expansion bracket heads 17, catch net is sagging and be fixed on seat earth 14;
(4) coal seam, top of super high seam 12 under cantilever is exploited
Lane work plane top on earth, coal seam under exploitation cantilever, make end, coal seam form slope, a coal seam, the angle 11 of this slope and frame girder cantilever frame bottom plane is 60 degree;
(5) supporting top net 16 is installed
Held on the net on supporting top and be fixed on bottom two frame girder cantilever stent support, the slope tension that supporting top net 16 is formed along the coal seam, top of super high seam under the 4th step exploitation cantilever, its lower end is fixed on seat earth 14;
(6) light hydraulic support work plane 13 is dug
In bottom, coal seam 12, seat earth more than 14 digs light hydraulic support work plane 13, advances the degree of depth suitable with cantilever 9 length;
(7) light hydraulic support work plane Sub-Level Caving is implemented
Movable light support, work plane Sub-Level Caving;
(8) Sub-Level Caving is transported
By along end fully mechanized coal face transportation roadway 5, transported by Sub-Level Caving, work plane is pushed ahead to cantilever root;
(9) move forward frame girder cantilever support 2
Frame girder cantilever support is advanced in support top tunnel, concordant with rear end, coal seam to expansion bracket head 17, move forward catch net lower end fixed point simultaneously;
(10) above step the four step is repeated to the 9th step, until support top tunnel terminal;
Work plane laterally moves to end, coal seam, repeats the step first step to the tenth step, until the coal seam within the scope of face length has all been adopted.
Claims (1)
1. super high seam mining full height roof timbering method, comprise and dig support top tunnel (3), installing frame girder cantilever support (2), catch net (15) is installed, the coal seam, top of super high seam under exploitation cantilever (9), installs supporting top net (16), digs light hydraulic support work plane (13), implement light hydraulic support work plane Sub-Level Caving, transport Sub-Level Caving; It is characterized in that: the concrete steps of its method are as follows:
(1) support top tunnel (3) is dug
Laterally locate in a distance at edge, exploiting field, top, coal seam, dig two the support top tunnels (3) adapted with frame girder cantilever support (2) cross section;
(2) installing frame girder cantilever support (2)
Frame girder cantilever support (2) is transported into support top tunnel (3), and expansion bracket head (17) is concordant with lane, end work plane; Cut eye place at stope and support arm (7) is installed, support the roof (8) that the palm (6) launches support works face, described support arm (7) is arranged on expansion bracket head (17), support the palm (6) and be arranged on support arm external part, described expansion bracket head (17) is arranged on the termination of cantilever (9), and described cantilever (9) is arranged on the rear end of framework cantilever support (2); Hydraulic prop (10) on frame girder cantilever support (2) is stretched out, makes each hydraulic prop hold out against roof (8);
(3) catch net (15) is installed
At the structure of an essay guarantee for a person given by a shopkeeper protecting wire net (15) of two frame girder cantilever supports expansion bracket head (17), catch net is sagging and be fixed on seat earth (14);
(4) coal seam, top of super high seam (12) under cantilever is exploited
Lane work plane top on earth, coal seam under exploitation cantilever, make end, coal seam form slope, a coal seam, the angle (11) of this slope and frame girder cantilever frame bottom plane is 50 ~ 70 degree;
(5) supporting top net (16) is installed
Held on the net on supporting top and be fixed on bottom two frame girder cantilever stent support, the slope tension that supporting top net (16) is formed along the coal seam, top of super high seam under the 4th step exploitation cantilever, its lower end is fixed on seat earth (14);
(6) light hydraulic support work plane (13) is dug
In coal seam (12) bottom, more than seat earth (14) dig light hydraulic support work plane (13), advance the degree of depth suitable with cantilever (9) length;
(7) light hydraulic support work plane Sub-Level Caving is implemented
Movable light support, work plane Sub-Level Caving;
(8) Sub-Level Caving is transported
By along end fully mechanized coal face transportation roadway (5), transported by Sub-Level Caving, work plane is pushed ahead to cantilever root;
(9) move forward frame girder cantilever support (2)
Frame girder cantilever support is advanced in support top tunnel, concordant with rear end, coal seam to expansion bracket head (17), move forward catch net lower end fixed point simultaneously;
(10) above step the four step is repeated to the 9th step, until support top tunnel terminal;
Work plane laterally moves to end, coal seam, repeats the step first step to the tenth step, until the coal seam within the scope of face length has all been adopted.
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| CN201310319971.8A CN103422870B (en) | 2013-07-26 | 2013-07-26 | Super high seam mining full height roof timbering method |
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| CN103422870B true CN103422870B (en) | 2015-09-16 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103953373A (en) * | 2014-05-08 | 2014-07-30 | 张新怀 | Temporary support device for laneway roof caving region |
| CN108979682B (en) * | 2018-07-17 | 2020-03-06 | 山东科技大学 | Automatic network laying device and method for thick coal seam layered mining bottom plate |
| CN116950687B (en) * | 2023-09-20 | 2023-12-01 | 太原西北二环高速公路发展有限公司 | Tunnel supporting system penetrating through multilayer goaf and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2018667C1 (en) * | 1992-01-22 | 1994-08-30 | Томашевский Людвиг Павлович | Method for roof control in mounting slot |
| CN1469029A (en) * | 2002-07-19 | 2004-01-21 | 罗崇福 | Coal cutting method for inclined thick and very thick coal bed |
| CN101761338A (en) * | 2010-03-13 | 2010-06-30 | 中国矿业大学 | Gob-side entry retaining method of a solid filling coal mining half-section one-leg shed |
| CN101832150A (en) * | 2010-04-21 | 2010-09-15 | 林立荣 | Ultra thick coal bed fully mechanized underground mining protection process and special protection supporting frame |
| CN101915101A (en) * | 2010-08-20 | 2010-12-15 | 天地科技股份有限公司 | Method of mining coal from heavy pitch thick coal seam |
| CN102562106A (en) * | 2011-08-20 | 2012-07-11 | 高九华 | Super high coal seam mining method by means of filling long arms at high positions |
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2013
- 2013-07-26 CN CN201310319971.8A patent/CN103422870B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2018667C1 (en) * | 1992-01-22 | 1994-08-30 | Томашевский Людвиг Павлович | Method for roof control in mounting slot |
| CN1469029A (en) * | 2002-07-19 | 2004-01-21 | 罗崇福 | Coal cutting method for inclined thick and very thick coal bed |
| CN101761338A (en) * | 2010-03-13 | 2010-06-30 | 中国矿业大学 | Gob-side entry retaining method of a solid filling coal mining half-section one-leg shed |
| CN101832150A (en) * | 2010-04-21 | 2010-09-15 | 林立荣 | Ultra thick coal bed fully mechanized underground mining protection process and special protection supporting frame |
| CN101915101A (en) * | 2010-08-20 | 2010-12-15 | 天地科技股份有限公司 | Method of mining coal from heavy pitch thick coal seam |
| CN102562106A (en) * | 2011-08-20 | 2012-07-11 | 高九华 | Super high coal seam mining method by means of filling long arms at high positions |
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