CN113482616B - Novel fully-mechanized mining face arrangement method - Google Patents
Novel fully-mechanized mining face arrangement method Download PDFInfo
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- CN113482616B CN113482616B CN202110945398.6A CN202110945398A CN113482616B CN 113482616 B CN113482616 B CN 113482616B CN 202110945398 A CN202110945398 A CN 202110945398A CN 113482616 B CN113482616 B CN 113482616B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005065 mining Methods 0.000 title claims abstract description 17
- 238000010276 construction Methods 0.000 claims abstract description 24
- 239000003245 coal Substances 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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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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- Mining & Mineral Resources (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a novel fully-mechanized coal mining face arrangement method, which comprises the following steps: and (3) returning the position of the open-cut eye meeting the fault to a first preset distance, turning the construction transportation cis-slot, and enabling the position to be consistent with the position of the original cis-slot. And (3) turning the construction external cutting hole 73m after the first fault of the transportation cis-slot is swung into the working surface position, turning the construction transportation cis-slot after the cutting hole is opened and constructed in place, and communicating with the transportation cis-slot which is constructed in the turning direction of the cutting hole, thereby forming the cutter handle working surface. And after the transportation cis-trough is constructed in place, the construction is reversely carried out by 90m from the external open-cut hole position, and the transportation cis-trough and the connecting roadway are assisted. Therefore, the novel fully-mechanized coal mining face arrangement method can ensure safe production of mines, greatly improves production efficiency and increases economic benefits.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a novel fully-mechanized coal mining face arrangement method.
Background
The original design trend length of the working face of some coal mine 1119 in Sichuan is 1250m, the inclined length is 150m, the average thickness of the No. 4 coal bed is 5.5m, the whole trend of the coal bed is in a syncline structure, the inclination angle of the coal bed is 5-10 degrees, and the coal mining amount of the working face can be 124 ten thousand tons. The design length of the transportation cis-slot is 1300m, the design length of the return air cis-slot is 1500m, the anchor net rope is adopted for supporting, and the roadway is tunneled by a fully-mechanized excavator. And faults with larger fall are encountered in the process of opening and cutting holes on a construction working surface and transporting the cis-slots.
1119 is cut into the hole and is constructed until 88m meets a positive fault, the fault trend is 265 degrees, the inclination angle is 85 degrees, the coal bed in front of the tunneling face is broken down, and the tunneling face enters the whole rock in a head-on mode. Through the analysis of the coal point and the coal seam thickness of drilling, at least two ladder positive faults with consistent trends are developed in front of tunneling, and the total fall of the faults is about 15 m.
1119 is operated in the forward direction until 694m meets 1# positive fault, the fault trend is 265 degrees, the inclination angle is 37-63 degrees, and the drop is 7m. When the construction is carried out to 758m, the fault is in contact with the No. 2 fault, the fault is 264 degrees, the inclination angle is 73-87 degrees, and the drop is 6m. When the construction is carried out to 800m, the fault is in contact with the 3# fault, the fault trend is 265 degrees, the inclination angle is 60 degrees, and the drop is 2m.
Through the fault exposure conditions of No. 1, no. 2 and No. 3 and the drilling analysis of transportation crossheading, the total fall of three step faults with basically consistent trend and trend is about 15 m.
Because of the existence of a plurality of large faults, if working surfaces are still arranged in the area, the safety production and economic benefits of the mine can be seriously influenced.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a novel fully-mechanized coal mining face arrangement method, which can ensure the safe production of mines, greatly improve the production efficiency and increase the economic benefit.
In order to achieve the above object, the present invention provides a novel fully-mechanized coal mining face arrangement method, comprising: and (3) returning the position of the open-cut eye meeting the fault to a first preset distance, turning the construction transportation cis-slot, and enabling the position to be consistent with the position of the original cis-slot. And (3) turning the construction external cutting hole 73m after the first fault of the transportation cis-slot is swung into the working surface position, turning the construction transportation cis-slot after the cutting hole is opened and constructed in place, and communicating with the transportation cis-slot which is constructed in the turning direction of the cutting hole, thereby forming the cutter handle working surface. And after the transportation cis-trough is constructed in place, the construction is reversely carried out by 90m from the external open-cut hole position, and the transportation cis-trough and the connecting roadway are assisted.
In one embodiment of the present invention, the first preset distance is 5m.
In one embodiment of the present invention, the second preset distance is 8m.
Compared with the prior art, the novel fully-mechanized coal mining face arrangement method can ensure the safe production of mines, greatly improve the production efficiency and increase the economic benefit.
Drawings
FIG. 1 is a flow diagram of a novel fully-mechanized coal mining face placement method, according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a face roadway layout for a novel fully-mechanized coal face layout method in accordance with an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
Fig. 1 is a flow diagram of a novel fully-mechanized coal mining face placement method according to an embodiment of the present invention. Fig. 2 is a schematic diagram of a face roadway layout for a novel fully-mechanized coal face layout method in accordance with an embodiment of the present invention.
As shown in fig. 1 to 2, a novel fully-mechanized coal mining face arrangement method according to a preferred embodiment of the present invention includes: s1, after the open-cut eye is retracted at the fault position, turning the construction transportation cis-slot by a first preset distance, wherein the direction is consistent with the direction of the original cis-slot. S2, turning the construction external cutting hole 73m after the first fault of the transportation cis-slot is put into the working face, and turning the construction transportation cis-slot after the cutting hole is in place, and communicating with the transportation cis-slot in turning construction by the cutting hole, so that a tool holder working face is formed. S3, constructing the transportation cis-trough in place, and then reversely constructing the transportation cis-trough and the connecting roadway by 90m from the external open-cut position.
In one embodiment of the present invention, the first preset distance is 5m. The second preset distance is 8m.
In practical application, according to the conditions of opening and cutting eyes of the 1119 working face and fault of a transportation gateway, in order to ensure the normal and safe exploitation of the later period of the working face, the invention decides to change the arrangement mode of the working face roadway through research, throws away the inner part of the working face to about 600m, trends to about 70m fault influence range and arranges a cutter handle type working face.
In detail, the arrangement method is as follows:
1. and 5m of the cutting hole is retracted at the position of the cutting hole contacting the fault to construct and transport the cis-slot, and the azimuth is consistent with that of the original cis-slot.
2. And turning the construction external cutting hole 73m at the position of the transport cis-slot 1# fault, which is retracted by 8m, turning the construction transport cis-slot after the cutting hole is in place, and communicating with the transport cis-slot of the cutting hole turning construction to form the handle work surface.
3. And constructing the 90m auxiliary transportation gate way and a 103m connecting roadway from the external open-cut hole position reversely after the transportation gate way is constructed in place.
Before tunneling, the mining area of the working face adopts relevant geophysical prospecting means to explore the geological structure of the area, and the result shows that a plurality of large faults exist in the area, so that the normal arrangement of a roadway and the normal mining of a future working face are seriously influenced, and if the working face is still arranged in the area, the safety production and economic benefit of a mine are extremely possibly seriously influenced.
Under the background, company engineering technicians hold technical conferences for a plurality of times to discuss and study together, and a working face is determined to be arranged in the area through basic data collection and analysis, relevant factor comparison and field engineering field investigation, and after a geological structure is revealed in the initial stage according to the original design and normal construction, a cutter handle working face is arranged according to a given scheme according to the actual field situation.
The cutter handle working face is arranged at the time, an auxiliary transportation roadway and a connecting roadway are constructed in the transportation gateway, the cutter handle working face is mainly used for reserving a transfer machine position and a device train, a transfer machine, an end support and a transition support withdrawing channel during the later period of inner and outer open-cut butt joint, the butt joint time of the cutter handle working face is shortened to 8 days from the original planned 30 days, and the production efficiency is greatly improved. And through the technical innovation, the coal yield is improved by 90 tens of thousands of tons, and the economic benefit is increased by more than 2 hundred million yuan.
In a word, the novel fully-mechanized coal mining face arrangement method can ensure safe production of mines, greatly improves production efficiency and increases economic benefits.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (1)
1. The novel fully-mechanized coal mining face arrangement method is characterized by comprising the following steps of:
the first preset distance is reserved after the open-cut eye is retracted at the position of meeting the fault, the transportation gateway is constructed in a turning way, and the azimuth is consistent with the azimuth of the original gateway;
a second preset distance turns to the outside of the construction after the first fault of the transportation cis-slot is put into the working surface, and turns to the construction transportation cis-slot after the construction of the opening and the cutting is in place, and the transportation cis-slot is communicated with the transportation cis-slot of the construction of the opening and the cutting turns to the construction, so that a cutter handle working surface is formed;
constructing the transportation cis-trough in place, and then reversely constructing the transportation cis-trough and the connecting roadway by 90m from the external open-cut hole position;
wherein the first preset distance is 5m;
wherein the second preset distance is 8m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110945398.6A CN113482616B (en) | 2021-08-17 | 2021-08-17 | Novel fully-mechanized mining face arrangement method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110945398.6A CN113482616B (en) | 2021-08-17 | 2021-08-17 | Novel fully-mechanized mining face arrangement method |
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| CN113482616B true CN113482616B (en) | 2024-02-06 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10300387A1 (en) * | 2003-01-09 | 2004-07-22 | Udo Adam | Method for coal seam working with additional one ended short coal faces to cut otherwise unused coal from the outer edges of the main face |
| CN108035715A (en) * | 2017-12-27 | 2018-05-15 | 山东科技大学 | A kind of unregulated fully mechanized coal mining face just adopts stage isometric tune face method |
| CN111305842A (en) * | 2020-03-13 | 2020-06-19 | 中煤科工开采研究院有限公司 | Rapid butt joint installation method based on cutter handle type fully mechanized coal mining face |
-
2021
- 2021-08-17 CN CN202110945398.6A patent/CN113482616B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10300387A1 (en) * | 2003-01-09 | 2004-07-22 | Udo Adam | Method for coal seam working with additional one ended short coal faces to cut otherwise unused coal from the outer edges of the main face |
| CN108035715A (en) * | 2017-12-27 | 2018-05-15 | 山东科技大学 | A kind of unregulated fully mechanized coal mining face just adopts stage isometric tune face method |
| CN111305842A (en) * | 2020-03-13 | 2020-06-19 | 中煤科工开采研究院有限公司 | Rapid butt joint installation method based on cutter handle type fully mechanized coal mining face |
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| CN113482616A (en) | 2021-10-08 |
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