CN111852544A - Near outburst coal seam rock roadway tunneling, drilling and transporting integrated tunneling method - Google Patents
Near outburst coal seam rock roadway tunneling, drilling and transporting integrated tunneling method Download PDFInfo
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- CN111852544A CN111852544A CN202010640752.XA CN202010640752A CN111852544A CN 111852544 A CN111852544 A CN 111852544A CN 202010640752 A CN202010640752 A CN 202010640752A CN 111852544 A CN111852544 A CN 111852544A
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- roadway
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
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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)
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a near outburst coal seam rock roadway tunneling, drilling and transporting integrated tunneling method, belongs to the technical field of coal mining, and solves the problems that the single-advancing efficiency of the near outburst coal seam rock roadway tunneling is low, the drilling and disaster control progress is slow, and the like, and innovatively applies a 'tunneling, drilling and transporting' integrated tunneling process and a method. The method changes various defects caused by traditional drilling of the roadway side drilling site, integrates the main procedures of tunneling, drilling and transporting, works in parallel, runs efficiently, improves the single advance of the rock roadway, reduces the engineering quantity, eliminates the hidden danger of a large-section roof, and improves the production preparation quality.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a near outburst coal seam rock roadway tunneling drilling and transporting integrated tunneling method.
Background
When coal and gas outburst mines are mined, gas needs to be pre-pumped in advance to control gas disasters, strip gas drainage needs to be carried out before a working face extraction roadway is tunneled, and the roadway can be tunneled after outburst is removed, so that the roadway needs to be tunneled in a rock stratum close to a bottom plate or a top plate of a coal seam by 20-30m, and a drilling machine is arranged in the roadway to construct, drill holes and drain the gas. The arrangement of the drill sites is usually one in the two sides of a roadway with the interval of about 40m, in order to adapt to a high-power crawler-type hydraulic drilling machine, the length of a construction roadway required by each drill site is 6m, the width of the roadway is 5m, the height of the roadway is 3.8m, and the section of a main roadway is added, so that the section of the roadway of the drill site is large, the construction difficulty is large, the safety threat of a top plate is large, the comprehensive excavation construction of the drill site is difficult, the blasting excavation progress is slow, and the construction of each drill site usually occupies 3-4 days. In addition, when a drilling machine is installed in a drilling field on one side of the belt conveyor, the belt frame needs to be detached, and the transportation after tunneling is also influenced. Therefore, the traditional parallel operation relations of tunneling, drilling and transportation are often influenced and restricted, the tunneling efficiency is low, and the gas control progress is also influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a near outburst coal seam rock roadway tunneling, drilling and transporting integrated tunneling method, which overcomes various defects caused by drilling of a traditional roadway side drilling site, integrates the main procedures of tunneling, drilling and transporting into a whole, performs parallel operation, and efficiently operates, and achieves the aims of improving single entry of the rock roadway, reducing the engineering quantity, eliminating the hidden danger of a large-section roof, improving the production preparation quality and the like.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the integrated tunneling method for tunneling, drilling and transporting the near outburst coal seam rock roadway comprises the following steps:
(1) a crawler hydraulic drilling machine, a belt conveyor, a monorail crane, a gas drainage pipeline, an air duct, a cable, a compressed air pipe, water supply equipment and a pipeline are arranged in the roadway support;
(2) anchor cables are added on a top plate of the roadway support, the strength of the top plate of the roadway support is increased, the anchor cables of the top plate are arranged in a '323' mode, namely, one anchor cable is fixed in the middle of the top plate, two anchor cables are respectively fixed on the left side and the right side, and two anchor cables which are gathered together are fixed between the two anchor cables on the left side and the right side;
(3) the belt conveyor in the roadway adopts a belt conveyor with a self-moving tail, the height of the belt conveyor is not more than 800mm, and the monorail crane is arranged above the belt conveyor, so that the influence of drilling in the roadway can be avoided by people conveying and material conveying;
(4) The crawler hydraulic drilling machine is arranged on one side of the belt conveyor, the crawler hydraulic drilling machine and the belt conveyor are arranged in parallel, the air duct is arranged on the inner side of the upper part of the roadway support, and the gas drainage pipeline, the cable, the compressed air pipe, the water supply equipment and the pipeline are arranged close to the edge of the roadway support;
(5) after the equipment in the roadway is arranged through the steps, the crawler hydraulic drilling machine and the belt conveyor are started at the same time, the coal mining machine at the end of the belt conveyor starts coal mining, the belt conveyor conveys the mined coal, the crawler hydraulic drilling machine performs advanced drilling in a top plate or a floor rock layer, gas in the coal layer is released, the gas is pumped out through a gas drainage pipeline, the parallel operation of tunneling and drilling is realized, the tunneling and the coal conveying of the roadway are not influenced by the drilling, and the integrated construction target is achieved;
(6) when the belt conveyor and the crawler hydraulic drilling machine operate, the air duct at the top of the roadway support is started to remove dust.
Preferably, the section of the roadway support in the step (1) is a three-arch section.
Preferably, the width of the roadway support is 4.8-5.0m, and the height of the roadway support is 3.7-3.9 m.
By adopting the technical scheme of the invention, the following beneficial effects can be obtained:
the integrated tunneling method for tunneling, drilling and transporting the near outburst coal seam rock roadway adopts an integrated tunneling process to reasonably configure key equipment and links on time and space, organically combine with each other, supplement each other, integrally construct and operate in parallel, and jointly act, so that the difficult problems of mutual restriction and mutual influence of operations such as tunneling, drilling, transportation and the like are fundamentally solved, and the tunneling single-pass and gas disaster control progress is improved.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic view of a roadway support section and an equipment arrangement structure;
fig. 2 is a schematic diagram of the arrangement of the layer and the drill holes of the bottom-pumped gas drainage roadway.
The labels in the above figures are: 1. a crawler hydraulic drilling machine; 2. a belt conveyor; 3. a cable; 4. a monorail hoist; 5. a gas drainage pipeline; 6. an air duct; 7. pressing an air pipe; 8. a water supply device; 9. drilling ahead; 10. an anchor cable; 11. a top plate.
Detailed Description
The embodiments of the present invention, such as the shapes and structures of the respective members, the mutual positions and connection relationships between the respective portions, the functions and operation principles of the respective portions, will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the excavation, drilling and transportation integrated tunneling method for the near outburst coal seam rock roadway comprises the following steps:
(1) a track hydraulic drilling machine 1, a belt conveyor 2, a monorail crane 4, a gas drainage pipeline 5, an air duct 6, a cable 3, a compressed air pipe 7, water supply equipment 8 and pipelines are arranged in a roadway support.
(2) The anchor cables 10 are additionally arranged on the top plate 11 of the roadway support, the strength of the top plate 11 of the roadway support is increased, the anchor cables of the top plate 11 are arranged in a '323' mode, namely, one anchor cable 10 is fixed in the middle of the top plate 11, two anchor cables 10 are respectively fixed on the left side and the right side, two anchor cables 10 which are gathered together are fixed between the two anchor cables 10 on the left side and the right side, and the roadway support can be effectively and firmly fixed underground by adopting the arrangement mode, so that the top plate 11 cannot be collapsed.
(3) Belt feeder 2 in the tunnel adopts the belt feeder from moving the tail, and the height of belt feeder 2 is not more than 800mm, and monorail hoist 4 arranges in belt feeder 2 top, and fortune people fortune material can avoid the in-lane influence of drilling, and belt feeder 2 is used for transporting coal, and monorail hoist 4 is used for transporting equipment.
(4) Crawler hydraulic drill 1 sets up in belt feeder 2 one side, and crawler hydraulic drill 1 and belt feeder 2 parallel arrangement, dryer 6 set up inboard in tunnel support upper portion, and gas drainage pipeline 5, cable 3, compressed air pipe 7, water supply equipment 8 and pipeline all lean on the tunnel to strut the edge setting.
(5) After the equipment in the roadway is arranged through the steps, the crawler hydraulic drilling machine 1 and the belt conveyor 2 are started at the same time, the coal mining machine at the end of the belt conveyor 2 starts coal mining, and the belt conveyor 2 transports the mined coal, as shown in fig. 2, the crawler hydraulic drilling machine 1 conducts advanced drilling 9 in a top plate or a floor rock stratum, releases gas in the coal seam, and pumps the gas out through the gas drainage pipeline 5, so that parallel operation of tunneling and drilling is realized, the drilling does not affect tunneling and coal transportation, and an integrated construction target is achieved.
(6) And when the belt conveyor 2 and the crawler hydraulic drilling machine 1 operate, the air duct 6 at the top of the roadway support is started to remove dust.
The section of the roadway support in the step (1) is a three-center arch section, the strength of the three-center arch section is increased compared with that of the original circular arc section, the three-center arch section is not easy to break and collapse, the support strength is high, the width of the roadway support is 4.8-5.0m, the height of the roadway support is 3.7-3.9m, and the parallel operation of tunneling and drilling can be guaranteed.
By adopting the measures, the parallel operation of tunneling and drilling is realized, the drilling does not influence the tunneling and the subsequent transportation of the tunnel, the integrated construction target is achieved, and the tunneling efficiency is obviously improved compared with that of the traditional construction method. The method changes various defects caused by traditional drilling of the roadway side drilling site, integrates the main procedures of tunneling, drilling and transporting, works in parallel, operates efficiently, improves the single advance of the rock roadway, reduces the engineering quantity, removes the potential safety hazard of the large-section roof, and ensures the safety of underground production.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (3)
1. The integrated tunneling method for tunneling, drilling and transporting the near outburst coal seam rock roadway is characterized by comprising the following steps of:
(1) a crawler hydraulic drilling machine, a belt conveyor, a monorail crane, a gas drainage pipeline, an air duct, a cable, a compressed air pipe, water supply equipment and a pipeline are arranged in the roadway support;
(2) anchor cables are added on a top plate of the roadway support, the strength of the top plate of the roadway support is increased, the anchor cables of the top plate are arranged in a '323' mode, namely, one anchor cable is fixed in the middle of the top plate, two anchor cables are respectively fixed on the left side and the right side, and two anchor cables which are gathered together are fixed between the two anchor cables on the left side and the right side;
(3) the belt conveyor in the roadway adopts a belt conveyor with a self-moving tail, the height of the belt conveyor is not more than 800mm, and the monorail crane is arranged above the belt conveyor, so that the influence of drilling in the roadway can be avoided by people conveying and material conveying;
(4) the crawler hydraulic drilling machine is arranged on one side of the belt conveyor, the crawler hydraulic drilling machine is arranged in parallel with the belt conveyor, the air duct is arranged on the inner side of the upper part of the roadway support, the cable, the air compression pipe, the water supply equipment and the pipeline are arranged close to the edge of the roadway support, and the gas drainage pipeline is arranged on two side edges of the roadway support;
(5) after the equipment in the roadway is arranged through the steps, the crawler hydraulic drilling machine and the belt conveyor are started at the same time, the coal mining machine at the end of the belt conveyor starts coal mining, the belt conveyor conveys the mined coal, the crawler hydraulic drilling machine performs advanced drilling in a top plate or a floor rock layer, gas in the coal layer is released, the gas is pumped out through a gas drainage pipeline, the parallel operation of tunneling and drilling is realized, the tunneling and the coal conveying of the roadway are not influenced by the drilling, and the integrated construction target is achieved;
(6) When the belt conveyor and the crawler hydraulic drilling machine operate, the air duct at the top of the roadway support is started to remove dust.
2. The near-outburst coal seam rock roadway excavation and drilling integrated tunneling method according to claim 1, characterized in that: and (2) the section of the roadway support in the step (1) is a three-center arch section.
3. The near-outburst coal seam rock roadway excavation and drilling integrated tunneling method according to claim 2, characterized in that: the width of the roadway support is 4.8-5.0m, and the height of the roadway support is 3.7-3.9 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010640752.XA CN111852544A (en) | 2020-07-06 | 2020-07-06 | Near outburst coal seam rock roadway tunneling, drilling and transporting integrated tunneling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010640752.XA CN111852544A (en) | 2020-07-06 | 2020-07-06 | Near outburst coal seam rock roadway tunneling, drilling and transporting integrated tunneling method |
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| Publication Number | Publication Date |
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| CN111852544A true CN111852544A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010640752.XA Pending CN111852544A (en) | 2020-07-06 | 2020-07-06 | Near outburst coal seam rock roadway tunneling, drilling and transporting integrated tunneling method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590850A (en) * | 2013-11-28 | 2014-02-19 | 王万洲 | Underground stereo cross transportation method for underground coal mine |
| CN204096865U (en) * | 2014-09-23 | 2015-01-14 | 淮南豪特机械制造有限公司 | A kind of rope traction monorail hoist transport systems |
| CN104481547A (en) * | 2014-11-26 | 2015-04-01 | 中国矿业大学 | Method for quickly tunneling shed type supporting roadway |
| CN205654356U (en) * | 2016-02-03 | 2016-10-19 | 淮北矿业股份有限公司 | Special tunnel of chain trigger of digging is combined to coal road |
| CN106812532A (en) * | 2016-03-30 | 2017-06-09 | 六盘水师范学院 | A kind of coal petrography of high gas and outburst mine girdle half cuts top tunnel speedy drivage system |
-
2020
- 2020-07-06 CN CN202010640752.XA patent/CN111852544A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590850A (en) * | 2013-11-28 | 2014-02-19 | 王万洲 | Underground stereo cross transportation method for underground coal mine |
| CN204096865U (en) * | 2014-09-23 | 2015-01-14 | 淮南豪特机械制造有限公司 | A kind of rope traction monorail hoist transport systems |
| CN104481547A (en) * | 2014-11-26 | 2015-04-01 | 中国矿业大学 | Method for quickly tunneling shed type supporting roadway |
| CN205654356U (en) * | 2016-02-03 | 2016-10-19 | 淮北矿业股份有限公司 | Special tunnel of chain trigger of digging is combined to coal road |
| CN106812532A (en) * | 2016-03-30 | 2017-06-09 | 六盘水师范学院 | A kind of coal petrography of high gas and outburst mine girdle half cuts top tunnel speedy drivage system |
Non-Patent Citations (1)
| Title |
|---|
| 姜海昧: "景福公司15203进风巷支护设计与参数研究", 《煤炭与化工》 * |
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Application publication date: 20201030 |
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