CN104453957A - Surrounding rock control method for medium-thickness coal seam roof - Google Patents
Surrounding rock control method for medium-thickness coal seam roof Download PDFInfo
- Publication number
- CN104453957A CN104453957A CN201410645703.XA CN201410645703A CN104453957A CN 104453957 A CN104453957 A CN 104453957A CN 201410645703 A CN201410645703 A CN 201410645703A CN 104453957 A CN104453957 A CN 104453957A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000011435 rock Substances 0.000 title claims abstract description 10
- 239000003245 coal Substances 0.000 title abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000003325 tomography Methods 0.000 claims description 8
- 230000003111 delayed effect Effects 0.000 claims description 6
- 238000005065 mining Methods 0.000 abstract 4
- 238000005336 cracking Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a surrounding rock control method for a medium-thickness coal seam roof. The surrounding rock control method for the medium-thickness coal seam roof resolves the problem that an existing work surface fault roof is prone to breaking and then has large influence on coal mining stopping of a work surface. The method comprises the steps that a, when coal mining is carried out to the position 12 m away from the stopping line, and suspended mesh anchor cables are arranged for laying a net; b, a first row of anchor cables are arranged 5.7 m away from the stopping line; c, a first row of inclined beams are arranged 5 m away from the stopping line; d, a second row of anchor cables are arranged 4.2 m away from the stopping line, and a second row of inclined beams are arranged 3.0 m away from the stopping line; e, erection is stopped at the position 2.3 m away from the stopping line, the last two coal parts are cut, and frames are not moved; f, a third row of anchor cables are arranged 1.9 m away from the stopping line, a fourth row of anchor cables are arranged 1.2 m away from the stopping line, and a row of anchor rods are arranged 0.5 m away from the stopping line; g, a moving direction beam is erected in the middle; h, a row of anchor cable steel beams are arranged inwards at breaker lines of supporting frames at the head and tail fault positions; i, two shield supporting frames are arranged in a channel when the frames are detached and move alternatively in a step-forward mode. The surrounding rock control method for the medium-thickness coal seam roof effectively controls the influence of the fault on coal mining stopping of the work surface and provides strong and powerful guarantee for safe coal mining stopping and movement.
Description
Technical field
The present invention relates to underground coal mine Roof Control method, be specially a kind of work plane head, tail stops adopting the medium-thickness seam roof rock control method that position exists tomography.
Background technology
Underground coal mine work plane runs into the phenomenon that head, afterbody all exist tomography stopping adopting the many meetings in position, and two tomographies are high angle normal fault, and drop is comparatively large, tomography place roof cracking, and the fried side of coal wall is serious, stops adopting impact larger on work plane.
Summary of the invention
In order to solve, work on hand bedding fault top board is easily broken to stop adopting the larger problem of impact on work plane in the present invention, provides a kind of medium-thickness seam roof rock control method.
The present invention adopts following technical scheme to realize: medium-thickness seam roof rock control method, adopts following steps: a, when adopting to when stopping adopting line 12m, play linked network anchor cable and carry out lapping, anchor cable makes a call to one by frame; B, distance are stopped adopting line 5.7m and are played note first row anchor cable, cable interval 1.5m; C, distance stop adopting first row tendency beam on line 5.0m, and lay along work plane tendency, beam and beam lap length 0.5m, lap segment is placed on by tail direction; D, distance are stopped adopting line 4.2m and are played note second row anchor cable, apart from stopping adopting second row tendency beam on line 3.0m; E, distance are stopped adopting line 2.2m and are stopped frame, are adjusted in line by support, and stop work of trying to stop people from fighting each other, take transporter apart and connect with support, work plane carries out the work of Kuo Ji road, cuts last two cutter coals and does not move frame; F, beat note the 3rd arrange anchor cable apart from stopping adopting line 1.9m, beat note the 4th arrange anchor cable apart from stopping adopting line 1.2m, beat note one arrange anchor pole apart from stopping adopting line 0.5m; G, erection one end, middle part are propped up on support front-axle beam, the locking of other end anchor cable move towards beam, one, every frame, aligns with carriage center line; H, locate inward to have broken row's anchor cable girder steel at tomography place support break line end to end; I, remove frame road on opportunity and place two shield supports, and first shield support in second shield support and machine road moves towards direction spacing distance along work plane and is no more than 0.8m, delayed first shield support 1.8m is needed along work plane tendency direction, after often withdrawing from a support, first alter forward support delayed in shield support along machine road, pull together with advanced shield support, afterwards altering forward shield support also its 1.5m advanced near rib, in step type alternating forward.
Anchor cable girder steel is adopted to safeguard top board above support, machine road adopts single-point anchor cable, anchor cable group and moves towards the mode that beam combines and safeguard top board, effectively control fault zone to the impact stopping adopting, and machine road single-point anchor cable, anchor cable group with move towards beam anchor cable and form three figured cloths and put, effectively maintain top board; That takes to be suitable for removes frame direction and order, utilizes cover frame to safeguard enough working spaces, for safety, reclaims support efficiently and creates condition, successfully solves that work on hand bedding fault top board is easily broken to stop adopting the larger problem of impact on work plane.
The present invention effectively controls the impact that tomography stops work plane to adopt, and reduce similar devices Ting Caiji road width, adopt removal of home for safe stopping and provide strong guarantee, well screen support unit withdrawing safely and fast simultaneously, substantially increase the safety factor that employee constructs in work plane.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-first row anchor cable, 2-first row tendency beam, 3-second row anchor cable, 4-second row tendency beam, 5-the 3rd arranges anchor cable, and 6-the 4th arranges anchor cable, 7-anchor pole, and 8-support front-axle beam, 9-moves towards beam.
Detailed description of the invention
Medium-thickness seam roof rock control method, adopts following steps: a, when adopting to when stopping adopting line 12m, play linked network anchor cable and carry out lapping, anchor cable makes a call to one by frame; B, distance are stopped adopting line 5.7m and are played note first row anchor cable 1, cable interval 1.5m; C, distance stop adopting first row tendency beam 2 on line 5.0m, and lay along work plane tendency, beam and beam lap length 0.5m, lap segment is placed on by tail direction; D, distance are stopped adopting line 4.2m and are played note second row anchor cable 3, apart from stopping adopting second row tendency beam 4 on line 3.0m; E, distance are stopped adopting line 2.2m and are stopped frame, are adjusted in line by support, and stop work of trying to stop people from fighting each other, take transporter apart and connect with support, work plane carries out the work of Kuo Ji road, cuts last two cutter coals and does not move frame; F, beat note the 3rd arrange anchor cable 5 apart from stopping adopting line 1.9m, beat note the 4th arrange anchor cable 6 apart from stopping adopting line 1.2m, beat note one arrange anchor pole 7 apart from stopping adopting line 0.5m; G, erection one end, middle part are propped up on support front-axle beam 8, the locking of other end anchor cable move towards beam 9, one, every frame, aligns with carriage center line; H, locate inward to have broken row's anchor cable girder steel at tomography place support break line end to end; I, remove frame road on opportunity and place two shield supports, and first shield support in second shield support and machine road moves towards direction spacing distance along work plane and is no more than 0.8m, delayed first shield support 1.8m is needed along work plane tendency direction, after often withdrawing from a support, first alter forward support delayed in shield support along machine road, pull together with advanced shield support, afterwards altering forward shield support also its 1.5m advanced near rib, in step type alternating forward.
Claims (1)
1. a medium-thickness seam roof rock control method, is characterized in that: adopt following steps: a, when adopting to when stopping adopting line 12m, play linked network anchor cable and carry out lapping, anchor cable makes a call to one by frame; B, distance are stopped adopting line 5.7m and are beaten note first row anchor cable (1), cable interval 1.5m; C, distance stop adopting first row tendency beam (2) on line 5.0m, and lay along work plane tendency, beam and beam lap length 0.5m, lap segment is placed on by tail direction; D, distance are stopped adopting line 4.2m and are beaten note second row anchor cable (3), apart from stopping adopting second row tendency beam (4) on line 3.0m; E, distance are stopped adopting line 2.2m and are stopped frame, are adjusted in line by support, and stop work of trying to stop people from fighting each other, take transporter apart and connect with support, work plane carries out the work of Kuo Ji road, cuts last two cutter coals and does not move frame; F, beat note the 3rd arrange anchor cable (5) apart from stopping adopting line 1.9m, beat note the 4th arrange anchor cable (6) apart from stopping adopting line 1.2m, beat note one arrange anchor pole (7) apart from stopping adopting line 0.5m; What, other end anchor cable locking upper at support front-axle beam (8) was propped up in g, erection one end, middle part moves towards beam (9), and one, every frame, aligns with carriage center line; H, locate inward to have broken row's anchor cable girder steel at tomography place support break line end to end; I, remove frame road on opportunity and place two shield supports, and first shield support in second shield support and machine road moves towards direction spacing distance along work plane and is no more than 0.8m, delayed first shield support 1.8m is needed along work plane tendency direction, after often withdrawing from a support, first alter forward support delayed in shield support along machine road, pull together with advanced shield support, afterwards altering forward shield support also its 1.5m advanced near rib, in step type alternating forward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410645703.XA CN104453957B (en) | 2014-11-15 | 2014-11-15 | Medium-thickness seam roof rock control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410645703.XA CN104453957B (en) | 2014-11-15 | 2014-11-15 | Medium-thickness seam roof rock control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104453957A true CN104453957A (en) | 2015-03-25 |
| CN104453957B CN104453957B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410645703.XA Active CN104453957B (en) | 2014-11-15 | 2014-11-15 | Medium-thickness seam roof rock control method |
Country Status (1)
| Country | Link |
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| CN (1) | CN104453957B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134266A (en) * | 2015-08-24 | 2015-12-09 | 天地科技股份有限公司 | Support method for fully-mechanized coal mining face full-negative-pressure withdrawing channel |
| CN110374645A (en) * | 2019-08-14 | 2019-10-25 | 缪协兴 | A kind of super high seam big cross section thin coal pillar gob side entry Equivalent Support method |
| CN110821537A (en) * | 2019-11-29 | 2020-02-21 | 淮矿西部煤矿投资管理有限公司 | Support method for fully-mechanized coal mining face pre-digging single-withdrawing channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6006894A (en) * | 1999-04-16 | 1999-12-28 | Cbj Plating & Machine Of Tennessee, Co. | Low vein mobile bridge carrier hydraulic haulage system |
| CN102828759A (en) * | 2012-08-31 | 2012-12-19 | 山东新煤机械装备股份有限公司 | Moving and support dismantling method for working faces of breaking roofs of mines |
| CN102900449A (en) * | 2012-10-11 | 2013-01-30 | 北京圆之翰煤炭工程设计有限公司 | Support method for underground goaf roof of coal mine |
| CN102979542A (en) * | 2012-12-11 | 2013-03-20 | 安徽恒源煤电股份有限公司 | Bolt-mesh-cable support technology |
| CN103016008A (en) * | 2012-12-20 | 2013-04-03 | 大同煤矿集团有限责任公司 | Mining stopping method for downwards mined underlying seams of coal seam group |
| CN103122768A (en) * | 2011-11-21 | 2013-05-29 | 大同煤矿集团有限责任公司 | Supporting method of carboniferous system geologic structure in-zone breaking country rock roadway |
| CN103670470A (en) * | 2013-12-31 | 2014-03-26 | 大同煤矿集团有限责任公司 | Full coal roadway safe and speedy drivage supporting method |
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2014
- 2014-11-15 CN CN201410645703.XA patent/CN104453957B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6006894A (en) * | 1999-04-16 | 1999-12-28 | Cbj Plating & Machine Of Tennessee, Co. | Low vein mobile bridge carrier hydraulic haulage system |
| CN103122768A (en) * | 2011-11-21 | 2013-05-29 | 大同煤矿集团有限责任公司 | Supporting method of carboniferous system geologic structure in-zone breaking country rock roadway |
| CN102828759A (en) * | 2012-08-31 | 2012-12-19 | 山东新煤机械装备股份有限公司 | Moving and support dismantling method for working faces of breaking roofs of mines |
| CN102900449A (en) * | 2012-10-11 | 2013-01-30 | 北京圆之翰煤炭工程设计有限公司 | Support method for underground goaf roof of coal mine |
| CN102979542A (en) * | 2012-12-11 | 2013-03-20 | 安徽恒源煤电股份有限公司 | Bolt-mesh-cable support technology |
| CN103016008A (en) * | 2012-12-20 | 2013-04-03 | 大同煤矿集团有限责任公司 | Mining stopping method for downwards mined underlying seams of coal seam group |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134266A (en) * | 2015-08-24 | 2015-12-09 | 天地科技股份有限公司 | Support method for fully-mechanized coal mining face full-negative-pressure withdrawing channel |
| CN110374645A (en) * | 2019-08-14 | 2019-10-25 | 缪协兴 | A kind of super high seam big cross section thin coal pillar gob side entry Equivalent Support method |
| CN110821537A (en) * | 2019-11-29 | 2020-02-21 | 淮矿西部煤矿投资管理有限公司 | Support method for fully-mechanized coal mining face pre-digging single-withdrawing channel |
| CN110821537B (en) * | 2019-11-29 | 2021-02-09 | 淮矿西部煤矿投资管理有限公司 | Support method for fully-mechanized coal mining face pre-digging single-withdrawing channel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104453957B (en) | 2016-08-24 |
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