CN115288788A - Method for arranging ultra-long working face of rock burst mine - Google Patents
Method for arranging ultra-long working face of rock burst mine Download PDFInfo
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- CN115288788A CN115288788A CN202210897164.3A CN202210897164A CN115288788A CN 115288788 A CN115288788 A CN 115288788A CN 202210897164 A CN202210897164 A CN 202210897164A CN 115288788 A CN115288788 A CN 115288788A
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- 239000011435 rock Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000003245 coal Substances 0.000 claims abstract description 22
- 238000005065 mining Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/06—Transport of mined material at or adjacent to the working face
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a method for arranging an overlong working face of a rock burst mine, wherein the overlong working face arrangement mainly comprises a working face front section, a working face rear section, a connecting roadway and two wing crossheading grooves; the front section of the working face is ahead of the rear section of the working face and is connected through a connecting roadway; the front section of the working face and the rear section of the working face are respectively provided with a coal mining machine, a set of scraper conveyors and a set of hydraulic supports, two belt conveyors are respectively paved on the two wings along the groove, and the front section of the working face and the rear section of the working face are independently mined and conveyed; the connecting roadway is automatically formed by cutting through a front-section coal mining machine roller, an end support is adopted in the roadway for supporting, a supporting support is adopted for the front-section end support of the working face for the pedestrians, side protecting plates are arranged on the sides, close to the goaf, of the front-section end support of the working face and the rear-section end support of the working face, the goaf is isolated from the influence on the working face, and air leakage is reduced; the two wing crossheading all chooses big section for use, satisfies the requirement that main transportation, auxiliary transport and personnel carried of working face anterior segment or working face back end.
Description
Technical Field
The invention belongs to the technical field of rock burst mine arrangement, and relates to a method for arranging an overlong working face of a rock burst mine.
Background
The conventional working face has a short mining face length and a large amount of tunneling work, so that a large number of operating personnel are required, and the accident potential is high; a plurality of coal pillars are reserved in the section, so that the coal extraction rate is low, the stress concentration is serious, and the ground is unevenly settled; the end feeding time is long, so that the coal cutting efficiency is low, and the productivity of a working surface is limited. Particularly, the advancing speed of the working face of the rock burst mine is strictly controlled, and many mines cannot achieve the yield for a long time, so that an efficient working face arrangement method capable of meeting the condition that the advancing speed of the rock burst mine is relatively low is urgently needed.
At present, the maximum face length of a coal mine working face of a well worker in China is 450m, wherein the technology and equipment with the working face length of about 250m are the most mature, an ultra-long working face with the length of more than 500m is arranged, the working face is divided into two parts, and two sets of mature working face equipment are adopted, so that the problems of capacity, safety, environment and the like commonly existing in a rock burst mine can be effectively solved, and the common development of economic benefits and social benefits of the mine is promoted.
Disclosure of Invention
The invention aims to provide a method for arranging an ultralong working face of a rock burst mine, which solves the problems in the background technology.
The technical scheme adopted by the invention is that the overlength working face arrangement method for the rock burst mine comprises a working face front section and a working face rear section, wherein two wings of the working face front section and the working face rear section are provided with crossheading; the front working face section and the rear working face section are connected through a connecting roadway, one ends, far away from the connecting roadway, of the front working face section and the rear working face section are respectively provided with a front working face section transportation roadway and a rear working face section transportation roadway, and the front working face section and the rear working face section are mined and transported independently.
The invention is also characterized in that:
the coal mining machine, the scraper conveyor and the hydraulic support are arranged in the front section of the working face, and the coal mining machine, the scraper conveyor and the hydraulic support are arranged in the rear section of the working face;
the connecting roadway is automatically formed after being cut by a coal mining machine at the front section of the working face, and the tail part of a scraper conveyor at the front section of the working face extends to the coal side wall of the connecting roadway;
the end of the working face front section close to the connection roadway is provided with a working face front section tail end support, the end of the working face rear section close to the connection roadway is provided with a working face rear section tail end support, and the working face front section tail end support and the working face rear section tail end support are both supporting supports;
wherein, the end socket support at the front section of the working surface and the end socket support at the rear section of the working surface are respectively provided with an end socket support side guard plate at one side close to the goaf;
the working face front-section belt conveyor and the working face rear-section belt conveyor are respectively connected with the working face front-section scraper conveyor and the working face rear-section scraper conveyor;
the width of the roadway of the front-section transportation roadway and the rear-section transportation roadway of the working face is not less than 5m, and reversing chambers are arranged at fixed intervals.
The invention has the advantages that
According to the method for arranging the ultralong working face of the rock burst mine, the single-cutter production capacity of the working face of the rock burst mine is effectively improved, and the problem that part of mines cannot achieve production for a long time due to limited working face productivity is solved; the arrangement of the ultra-long working faces enlarges the mining range of a single working face, reduces the number of the working faces and the tunneling work amount, is beneficial to reducing the strength of underground rock burst prevention and control work, reduces tunneling and impact prevention operating personnel, and realizes personnel reduction and efficiency improvement; the arrangement of the super-long working face reduces the number of coal pillars in a section, and reduces the damage of well mining to the ecological environment; the front section and the rear section of the super-long working face can produce independently, and the constant production capacity of a mine can be maintained.
Drawings
FIG. 1 is a schematic view of a front section of a working face in a rock burst mine overlength working face arrangement method of the present invention;
fig. 2 is a schematic diagram of the rear section of the working face in the method for arranging the ultra-long working face of the rock burst mine.
In the figure, 1, a front working face section, 2, a rear working face section, 3, a communication lane, 4, a front working face section transportation lane, 5, a rear working face section transportation lane, 6, a front working face section coal mining machine, 7, a front working face section scraper conveyor, 8, a front working face section hydraulic support, 9, a front working face section belt conveyor, 10, a rear working face section coal mining machine, 11, a rear working face section scraper conveyor, 12, a rear working face section hydraulic support, 13, a rear working face section belt conveyor, 14, a front working face section tail end support, 15, a rear working face section tail end support, and 16, an end support side protection plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention provides a method for arranging an overlong working face of a rock burst mine, which is mainly used for mines with working faces of more than 500m and with rock burst disasters, and comprises the following steps:
the device specifically comprises a working face front section 1, a working face rear section 2, a connecting roadway 3 and two-wing gate roads; the front section 1 of the working face is ahead of the rear section 2 of the working face and is connected through a connecting roadway 3; the front section 1 of the working face and the rear section 2 of the working face are independently mined and conveyed;
as shown in fig. 1 and 2, the ultralong working surface is composed of a working surface front section 1 and a working surface rear section 2, the two working surfaces are connected by a connecting lane 3, a working surface front section transport lane 4 needs to meet the requirements of main transportation, auxiliary transportation, personnel transportation and the like of the working surface front section 1 and provides a channel for ventilation, drainage and the like of the working surface front section 1, and a working surface rear section transport lane 5 needs to meet the requirements of main transportation, auxiliary transportation, personnel transportation and the like of the working surface rear section 2 and provides a channel for ventilation, drainage and the like of the working surface rear section 2;
the front working face section 1 is internally provided with a front working face section coal mining machine 6, a front working face section scraper conveyor 7 and a front working face section hydraulic support 8, the equipment is mutually independent with a rear working face section coal mining machine 10 and a rear working face section scraper conveyor 11 which are arranged in the rear working face section 2, and the rear working face section hydraulic support 12 can automatically finish coal mining and conveying of the working face;
the connecting roadway 3 is automatically formed after being cut by a working face front-section coal mining machine 6, and the tail part of a working face front-section scraper conveyor 7 extends to the coal wall side of the connecting roadway 3 to provide conditions for cutting the roadway by the coal mining machine;
the end socket support 14 at the tail part of the front section of the working face adopts a support type support, so that convenient conditions are provided for personnel passing, material conveying, ventilation, drainage and the like of the working face;
an end support side protection plate 16 is arranged on the side, close to the goaf, of the working face front section tail end support 14 and the working face rear section tail end support 15, so that the goaf and the working face are isolated, and air leakage of the goaf is reduced;
the coal produced at the front section 1 of the working face is transported from the connecting lane 3 to the front section transport lane 4 of the working face and is transported out of the working face by a front section belt conveyor 9 of the working face in the front section transport lane 4 of the working face; the coal produced at the rear section 2 of the working face is transported from the connecting lane 3 to the rear section transport lane 5 of the working face and is transported out of the working face by the rear section belt conveyor 13 of the working face in the rear section transport lane 5 of the working face;
the width of the roadway 4 at the front section of the working face and the width of the roadway 5 at the rear section of the working face are larger than 5m, and reversing chambers are arranged at fixed intervals, so that the requirements of main transportation, auxiliary transportation and personnel transportation at the front section of the working face can be met.
Claims (7)
1. The method for arranging the ultra-long working face of the rock burst mine is characterized in that the ultra-long working face comprises a working face front section (1) and a working face rear section (2), and two wings of the working face front section (1) and the working face rear section (2) are provided with gate grooves; the working face front section (1) and the working face rear section (2) are connected through a connecting roadway (3), one end, far away from the connecting roadway (3), of the working face front section (1) and the working face rear section (2) is provided with a working face front section transportation roadway (4) and a working face rear section transportation roadway (5) respectively, and the working face front section (1) and the working face rear section (2) are mined and transported independently.
2. The method for arranging the ultra-long working face of the rock burst mine according to claim 1, wherein a working face front-section shearer (6), a working face front-section scraper conveyor (7) and a working face front-section hydraulic support (8) are respectively arranged in the working face front section (1), a working face rear-section shearer (10), a working face rear-section scraper conveyor (11) and a working face rear-section hydraulic support (12) are respectively arranged in the working face rear section (2), and the working face front-section shearer (6), the working face front-section scraper conveyor (7), the working face front-section hydraulic support (8) arranged in the working face front section (1) and the working face rear-section shearer (10), the working face rear-section scraper conveyor (11) and the working face rear-section hydraulic support (12) arranged in the working face rear section (2) are mutually independent.
3. The method for arranging the ultra-long working face of the rock burst mine according to claim 1 or 2, characterized in that the connecting roadway (3) is automatically formed after being cut by a front-end face shearer (6), and the tail part of the front-end face scraper conveyor (7) extends to the coal side wall of the connecting roadway (3).
4. The method for arranging the ultra-long working face of the rock burst mine according to claim 1, wherein a working face front-section tail end support (14) is arranged at one end, close to the connecting roadway (3), of the working face front section (1), a working face rear-section tail end support (15) is arranged at one end, close to the connecting roadway (3), of the working face rear section (2), and the working face front-section tail end support (14) and the working face rear-section tail end support (15) are both supporting supports.
5. The method for arranging the ultra-long working face of the rock burst mine according to claim 4, wherein an end support side protection plate (16) is respectively arranged on one side, close to the goaf, of the working face front section tail end support (14) and one side, close to the goaf, of the working face rear section tail end support (15).
6. The method for arranging the ultra-long working face of the rock burst mine according to the claim 1 or 2, characterized in that a front working face belt conveyor (9) and a rear working face belt conveyor (13) are respectively arranged in the front working face conveying lane (4) and the rear working face conveying lane (5), and the front working face belt conveyor (9) and the rear working face belt conveyor (13) are respectively connected with the front working face scraper conveyor (7) and the rear working face scraper conveyor (11).
7. The method for arranging the ultra-long working face of the rock burst mine according to claim 1, wherein the width of the front-section conveying lane (4) and the rear-section conveying lane (5) of the working face is not less than 5m, and reversing chambers are arranged at fixed intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210897164.3A CN115288788A (en) | 2022-07-28 | 2022-07-28 | Method for arranging ultra-long working face of rock burst mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210897164.3A CN115288788A (en) | 2022-07-28 | 2022-07-28 | Method for arranging ultra-long working face of rock burst mine |
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| Publication Number | Publication Date |
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| CN115288788A true CN115288788A (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210897164.3A Pending CN115288788A (en) | 2022-07-28 | 2022-07-28 | Method for arranging ultra-long working face of rock burst mine |
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| CN (1) | CN115288788A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005203458A1 (en) * | 2005-05-19 | 2006-12-07 | Yankuang Group Corporation Limited | Fully mechanized mining technique of longwall mining method |
| CN102704935A (en) * | 2012-05-31 | 2012-10-03 | 库尔勒金川矿业有限公司 | Extra-long working surface fully mechanized coal mining process |
| CN104653182A (en) * | 2014-11-07 | 2015-05-27 | 山东科技大学 | Coal mining method for coal and gangue separate recovery of coal seam with dirt band |
| CN108729926A (en) * | 2018-06-07 | 2018-11-02 | 天地科技股份有限公司 | A kind of 400m or more overlength face layout forms of pre- pick interdrive |
-
2022
- 2022-07-28 CN CN202210897164.3A patent/CN115288788A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005203458A1 (en) * | 2005-05-19 | 2006-12-07 | Yankuang Group Corporation Limited | Fully mechanized mining technique of longwall mining method |
| CN102704935A (en) * | 2012-05-31 | 2012-10-03 | 库尔勒金川矿业有限公司 | Extra-long working surface fully mechanized coal mining process |
| CN104653182A (en) * | 2014-11-07 | 2015-05-27 | 山东科技大学 | Coal mining method for coal and gangue separate recovery of coal seam with dirt band |
| CN108729926A (en) * | 2018-06-07 | 2018-11-02 | 天地科技股份有限公司 | A kind of 400m or more overlength face layout forms of pre- pick interdrive |
Non-Patent Citations (1)
| Title |
|---|
| 吴其;: "鄂尔多斯冲击地压矿井大采高工作面巷道布置方式探讨", 内蒙古煤炭经济, no. 05, 15 March 2019 (2019-03-15) * |
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