CN103850690A - Concrete block and anchor rope roof cutting matching god-side entry retaining method for coal mining without pillars - Google Patents
Concrete block and anchor rope roof cutting matching god-side entry retaining method for coal mining without pillars Download PDFInfo
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- CN103850690A CN103850690A CN201210508463.XA CN201210508463A CN103850690A CN 103850690 A CN103850690 A CN 103850690A CN 201210508463 A CN201210508463 A CN 201210508463A CN 103850690 A CN103850690 A CN 103850690A
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- concrete block
- gob
- entry retaining
- side entry
- retaining method
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Abstract
The invention relates to a concrete block and anchor rope roof cutting matching gob-side entry retaining method for coal mining without pillars. The concrete block and anchor rope roof cutting matching gob-side entry retaining method includes building a concrete block wall on a certain side of a roadway; customizing concrete blocks on the ground 5-7d in advance; conveying the concrete blocks to a conveying tunnel of a coal working face; reinforcing anchor ropes on a certain inner side of the conveying tunnel for supplement. The certain side of the roadway is close to a gob. The certain inner side of the conveying tunnel is close to the gob and is positioned at the front of the working face, and the distance from the certain inner side of the conveying tunnel to the working face is 50m. By the aid of the method, the complete concrete block wall can be reserved to be reused for mining a working face of a next section along with continuous propulsion of the working faces. The concrete block and anchor rope roof cutting matching gob-side entry retaining method has the advantages of simplicity and convenience in operation, practicality, high construction efficiency, low cost and wide applicability.
Description
The present invention relates to a kind of concrete block for without coal pillar mining and coordinate anchor cable to cut top gob-side entry retaining method, be specially adapted to the gob side entry retaining of coal-face haulage gate.
Background technology
Along with improving constantly of mine machinery efficiency, traditional drift support type more and more can not meet the needs that coal-face digging is taken over, in traditional coal mining, common Hu lane mode is reserved coal pillar, cause coal mining rate low, mine stope, without coal pillar mining energy reasonable development coal resources, improves roadway maintenance, and can reduce tunnelling amount, be conducive to mine technology economic effect.
For without coal pillar mining, edge air gallery technology is a kind of important method, and the haulage gate at mining face rear is remained along goaf, reuses as the return airway of lower curtate work plane, has alleviated digging and has taken over contradiction, improves coal recovery rate.Edge air gallery technology method is simple, easy to operate, has important practical significance and application prospect.
Summary of the invention
Technical problem: the object of the invention is, provide a kind of method simple, safe and reliable, have compared with the concrete block wall of strong supporting intensity as roadside support Ti Liu lane method.
Technical scheme: the concrete block for without coal pillar mining of the present invention coordinates anchor cable to cut top gob-side entry retaining method: be to assemble concrete block wall at work plane rear by goaf one side, the width of concrete block wall is 500mm ~ 600mm, assembles concrete block height identical with work plane mining height; The concrete block that 5 ~ 7d builds in advance in advance, is transported to work plane and assembles as body of wall; Concrete block wall top top board first advance 50m plays row's anchor cable and cuts top, anchor cable spacing 800mm.
Beneficial effect: the present invention remains the haulage gate at mining face rear along goaf, reuse as the return airway of lower curtate work plane, and concrete block wall is as staying the roadside support of establishing tunnel, and support force is large, and has suitable contractibility.Alleviate digging and taken over contradiction, improve coal recovery rate, and method has been simple, easy to operate, have important practical significance and application prospect.
brief description of the drawings
Fig. 1 is that work plane of the present invention is arranged schematic diagram.
Fig. 2 is that the present invention stays lane sectional schematic diagram.
In figure, 1-work plane, 2-goaf, 3-concrete block wall, 4-top board, 5-anchor cable.
detailed description of the invention
The description as a step to one embodiment of the present of invention below in conjunction with accompanying drawing:
In stope drift active workings as shown in Figure 1, along with the propelling of work plane 1, form goaf 2, then assemble concrete block wall 3 in goaf 2 one sides, the width of the concrete block wall 3 assembling is 500 ~ 600mm, concrete block in advance 5 ~ 7d is built, and assembles concrete block wall 3 height identical with work plane 1 mining height; First advance 50m leans on 4 dozens of anchor cables 5 of goaf side back, anchor cable 5 spacing 800mm, as shown in Figure 2.
Claims (3)
1. one kind coordinates anchor cable to cut top gob-side entry retaining method for the concrete block without coal pillar mining, it is characterized in that at work plane (1) rear assembling concrete block wall (3) by goaf (2) one sides, described concrete block wall (3) is that 5 ~ 7d builds in advance in advance concrete block is transported to haulage gate and assembles as body of wall.
2. the concrete block for without coal pillar mining according to claim 1 coordinates anchor cable to cut top gob-side entry retaining method, it is characterized in that the width of described concrete block wall is 500mm ~ 600mm, assembles concrete block height identical with work plane mining height.
3. the concrete block for without coal pillar mining according to claim 1 coordinates anchor cable to cut top gob-side entry retaining method, it is characterized in that described concrete block wall top top board (4) first advance 50m makes a call to row's anchor cable (5), spacing 800mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508463.XA CN103850690A (en) | 2012-12-04 | 2012-12-04 | Concrete block and anchor rope roof cutting matching god-side entry retaining method for coal mining without pillars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210508463.XA CN103850690A (en) | 2012-12-04 | 2012-12-04 | Concrete block and anchor rope roof cutting matching god-side entry retaining method for coal mining without pillars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103850690A true CN103850690A (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210508463.XA Pending CN103850690A (en) | 2012-12-04 | 2012-12-04 | Concrete block and anchor rope roof cutting matching god-side entry retaining method for coal mining without pillars |
Country Status (1)
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| CN (1) | CN103850690A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725052A (en) * | 2017-10-31 | 2018-02-23 | 中国中煤能源集团有限公司 | One kind, which is adopted, stays integration exploitation gob side entry top plate constant-resistance anchor body beam method for protecting support |
| CN108590655A (en) * | 2018-03-27 | 2018-09-28 | 山东科技大学 | Assemble the method that wall realizes gob side entry retaining |
| CN110644994A (en) * | 2019-10-22 | 2020-01-03 | 大同煤矿集团有限责任公司综采装备安装分公司 | Roof cutting method in small coal pillar mining technology |
| CN114263482A (en) * | 2021-12-27 | 2022-04-01 | 安徽理工大学 | Method for blasting-free roof cutting pressure relief gob-side roadway of soft-roof coal seam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3831384A (en) * | 1971-09-21 | 1974-08-27 | Thyssen Great Britain Ltd | Shuttering for use in a mine and methods of use thereof |
| CN101289939A (en) * | 2008-06-10 | 2008-10-22 | 沈阳天安矿山机械科技有限公司 | Comprehensive support device for gob-side entry retaining |
| CN101457651A (en) * | 2008-11-19 | 2009-06-17 | 淮南矿业(集团)有限责任公司 | Filling stack advanced support method along empty tunnel in coal-gas co-milling Y-shaped ventilating system |
| CN101560883A (en) * | 2009-05-27 | 2009-10-21 | 沈阳市华祥矿山机械厂 | Gob-side entry retaining work mould base |
| CN101705838A (en) * | 2009-11-05 | 2010-05-12 | 冀中能源邯郸矿业集团有限公司 | Separate type filling method of goaf |
-
2012
- 2012-12-04 CN CN201210508463.XA patent/CN103850690A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831384A (en) * | 1971-09-21 | 1974-08-27 | Thyssen Great Britain Ltd | Shuttering for use in a mine and methods of use thereof |
| CN101289939A (en) * | 2008-06-10 | 2008-10-22 | 沈阳天安矿山机械科技有限公司 | Comprehensive support device for gob-side entry retaining |
| CN101457651A (en) * | 2008-11-19 | 2009-06-17 | 淮南矿业(集团)有限责任公司 | Filling stack advanced support method along empty tunnel in coal-gas co-milling Y-shaped ventilating system |
| CN101560883A (en) * | 2009-05-27 | 2009-10-21 | 沈阳市华祥矿山机械厂 | Gob-side entry retaining work mould base |
| CN101705838A (en) * | 2009-11-05 | 2010-05-12 | 冀中能源邯郸矿业集团有限公司 | Separate type filling method of goaf |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725052A (en) * | 2017-10-31 | 2018-02-23 | 中国中煤能源集团有限公司 | One kind, which is adopted, stays integration exploitation gob side entry top plate constant-resistance anchor body beam method for protecting support |
| CN107725052B (en) * | 2017-10-31 | 2019-03-22 | 中国中煤能源集团有限公司 | One kind, which is adopted, stays integration exploitation gob side entry top plate constant-resistance anchor body beam method for protecting support |
| CN108590655A (en) * | 2018-03-27 | 2018-09-28 | 山东科技大学 | Assemble the method that wall realizes gob side entry retaining |
| CN108590655B (en) * | 2018-03-27 | 2019-05-31 | 山东科技大学 | Assemble the method that wall realizes gob side entry retaining |
| CN110644994A (en) * | 2019-10-22 | 2020-01-03 | 大同煤矿集团有限责任公司综采装备安装分公司 | Roof cutting method in small coal pillar mining technology |
| CN114263482A (en) * | 2021-12-27 | 2022-04-01 | 安徽理工大学 | Method for blasting-free roof cutting pressure relief gob-side roadway of soft-roof coal seam |
| CN114263482B (en) * | 2021-12-27 | 2024-02-13 | 安徽理工大学 | Soft roof coal seam non-blasting roof-cutting pressure-relief gob-side entry method |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140611 |