CN108005655A - A kind of projecting coal bed double lane arrangements of high methane are without pillar mining method - Google Patents
A kind of projecting coal bed double lane arrangements of high methane are without pillar mining method Download PDFInfo
- Publication number
- CN108005655A CN108005655A CN201711225582.3A CN201711225582A CN108005655A CN 108005655 A CN108005655 A CN 108005655A CN 201711225582 A CN201711225582 A CN 201711225582A CN 108005655 A CN108005655 A CN 108005655A
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- Prior art keywords
- lane
- working face
- face
- air inlet
- job
- Prior art date
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Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000003245 coal Substances 0.000 title claims abstract description 33
- 238000005065 mining Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000000605 extraction Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000004378 air conditioning Methods 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Road Paving Structures (AREA)
Abstract
A kind of projecting coal bed double lane arrangements of high methane belong to underground coal mine supporting exploitation field without pillar mining method.Step is：Using engineering analogy or stress monitoring method, by the outside roadway layout of double lane driving faces beyond supporting pressure peak area；During double lane drivings, the connection roadway between double lanes is 150m 200m, reduces support cost；During working face extraction, along inner side tunnel gob side entry retaining, two crossheading inlet air of working face, Y-shaped ventilating system is formed with outside tunnel；The air return lane of a upper working face is also changed into air inlet during back production by the double lanes drivings of next working face also using above method pick lane；Will be repeatedly foregoing, it is sequentially completed the projecting coal bed no coal pillar mining of high methane in all working face.Tunnelling amount can be reduced using the invention, reduce invalid tunnelling and outside roadway support intensity and cost, realize no coal pillar mining.
Description
Technical field
The present invention relates to no pillar mining method, is particularly suitable for the projecting coal bed double lanes of high methane used in underground mining
Arrangement is without pillar mining method.
Background technology
For a long time, the projecting coal bed tunnelling of high methane is influenced very big by gas, be restrict heading speedy drivage,
Influence the principal element of Production Cohesion and safety.For high methane protrudes single coal bed, tunnelling need to use double lanes to dig
Into, there are roadway construction quantities is big, heading end is more, more, the protrusion-dispelling pressure that takes air quantity greatly, ten thousand tons of drivage ratio height, excavation replacements
It is nervous with mine blast volume.In addition, to prevent working face corner gas exceeding limit, in the past frequently with " U+L " type draft type, there are tail
Lane passes through Mined-out Area control gas, it is difficult to which effective control gas, does not meet《Safety regulations in coal mine》Regulation, easily cause work
Face gas power-off and so on.In addition, being arranged using more lanes, coal resources loss is big, and tail lane is likely to be at and adopts shadow
Ring in scope, roadway support and maintenance cost are high.How to realize the projecting coal bed double lane drivings of high methane without pillar mining method just
As domain engineering technical staff's problem to be solved.
The content of the invention
The purpose of the present invention is overcome the shortcoming in prior art, there is provided a kind of comprehensive cost is low, tunnelling amount
Less, realize that the projecting coal bed double lanes of the high methane without coal pillar mining are arranged without pillar mining method.
To achieve the above object, the projecting coal bed double lane arrangements of high methane of the invention include step without pillar mining method
For：
Step 1：Using engineering analogy or stress monitoring method, the main air inlet in first job face is tunneled out, at first
Double lane drivings are carried out beyond the supporting pressure peak area of working face, tunnel out first job face auxiliary air inlet lane and first work
Make face air return lane；Reduce the supporting intensity and support cost in tunnel on the outside of working face；
Step 2：Multiple air return lanes are equipped between first job face auxiliary air inlet lane and first job face air return lane to protect
Lane coal column, multiple perforation first job face auxiliary air inlet lanes and first job face air return lane are equipped between air return lane protection pillar
Connection roadway, fire dam is equipped with connection roadway, and divulge information using connection roadway；
Step 3：To the first working face extraction, along between the first working face and first job face auxiliary air inlet lane
Side tunnel constructs road-in packing and forms gob side entry retaining, the main air inlet 2 in first job face and forms first of gob side entry retaining
Working face auxiliary air inlet lane 3 is used as intake at the same time, two crossheading inlet air of working face, the main air inlet 2 in first job face,
The gob side entry retaining that first job face auxiliary air inlet lane 3 is formed carries out return air with first job face air return lane 4 through connection roadway 8,
Form Y-shaped ventilating system；
Step 4：Repeat step one is to step 2, for second working face using identical double lanes driving, tunnels out the
Two working face auxiliary air inlet lanes and second tailentry, second working face auxiliary air inlet lane and second working face
Multiple air return lane protection pillars are equipped between air return lane, multiple connection roadways, second work are provided between air return lane protection pillar
Will be using first job face air return lane as second main air inlet of working face, by during second working face extraction during the back production of face
Return air protection pillar between one working face and second working face produces in the lump, it is necessary to total length Guo Kong lanes；
Step 5：The projecting coal bed no coal column of high methane that one~step 4 of repeat step is sequentially completed all working face is opened
Adopt.
Beyond supporting pressure peak area, air return lane width of chain pillar is roadway layout on the outside of double lane driving faces
30m-70m；The connection roadway length is 150m-200m, to reduce connection roadway driving amount and invalid support cost.
Road-in packing is high water filling material or paste filling material..
Connection roadway and first job face auxiliary air inlet lane or gob side entry retaining and first job in air return lane protection pillar
Face air return lane or second working face air inlet infall strengthening supporting processing.
Top release, hydrofracturing are cut further to take, then reduces air return lane between gob side entry retaining surrouding rock deformation and double lanes
Protection pillar.
If gob side entry retaining rear section can not meet air-conditioning requirement, the fire dam of connection roadway is opened nearby, to meet
Air-conditioning requirement.
Beneficial effect：1) the main air inlet in first job face, first job face auxiliary air inlet lane and first job face
Air return lane forms Y-shaped ventilating system through connection roadway 8 and effectively reduces corner Gas；2) the invalid driving such as connection roadway is reduced,
Save support cost；3) use improves the exploiting field rate of recovery and extends mine service-life without coal pillar mining；Tunnel out first work
Make face auxiliary air inlet lane and first job face air return lane；Reduce the supporting intensity and support cost in tunnel on the outside of working face；
There is wide applicability in the art.
Brief description of the drawings
Fig. 1 is projecting coal bed double schematic diagrames of the lane arrangement without pillar mining method of the high methane of the present invention.
In figure：1- first jobs face, the main air inlet in 2- first jobs face, 3- first jobs face auxiliary air inlet lane,
4- first jobs face air return lane, second working face of 5-, 6- air return lane protection pillars, 7- gob side entry retaining road-in packings, 8-
Connection roadway, second working face auxiliary air inlet lane of 9-, second tailentry of 10-, 11- fire dams
Embodiment
With reference to embodiment, the present invention will be further described：
As shown in Figure 1, the projecting coal bed double lane arrangements of the high methane of the present invention are as follows without pillar mining method, its step：
Step 1：Using engineering analogy or stress monitoring method, the main air inlet 2 in first job face is tunneled out, first
Double lane drivings are carried out beyond the supporting pressure peak area of a working face 1, tunnel out first job face auxiliary air inlet lane 3 and first
A tailentry 4, reduces the supporting intensity and support cost in tunnel on the outside of working face；
Step 2：First job face air return lane 4 is arranged in beyond supporting pressure peak area using protection pillar 6, double lanes
Between using connection roadway 8 perforation ventilation：It is equipped between first job face auxiliary air inlet lane 3 and first job face air return lane 4
Multiple air return lane protection pillars 6, multiple perforation first job face auxiliary air inlet lanes 3 and the are equipped between air return lane protection pillar 6
The connection roadway 8 of one tailentry 4, is equipped with fire dam 11 in connection roadway 8, and is divulged information using connection roadway 8；Between double lanes
Connection roadway length increases to 150m-200m by conventional 40m-60m, to reduce 8 driving amount of connection roadway；Air return lane protection pillar 6
Width is 30m-70m；8 length of connection roadway is 150m-200m, to reduce connection roadway driving amount and invalid support cost；
Step 3：To 1 back production of the first working face, along between the first working face 1 and first job face auxiliary air inlet lane 3
Inner side tunnel constructs road-in packing 7 and forms gob side entry retaining, and road-in packing 7 is high water filling material or paste filling material；
The first job face auxiliary air inlet lane 3 of the main air inlet 2 in first job face and formation gob side entry retaining is used as intake at the same time
Use, the main air inlet 2 in first job face and the conduct of first job face auxiliary air inlet lane 3 two crossheading inlet air of working face, first
The gob side entry retaining and first job face air return lane 4 that the main air inlet 2 of a working face, first job face auxiliary air inlet lane 3 are formed
Return air is carried out through connection roadway 8, forms Y-shaped ventilating system；If gob side entry retaining rear section shrinkage cannot extremely meet air-conditioning requirement,
Connection roadway 8 is then opened nearby, to meet air-conditioning requirement；Connection roadway 8 is aided in first job face in air return lane protection pillar 6
Air inlet 3 and the processing of 4 infall strengthening supporting of first job face air return lane；
Step 4：Repeat step one is to step 2, for second working face using identical double lanes driving, tunnels out the
Two working face auxiliary air inlet lanes 9 and second tailentry 10, second working face auxiliary air inlet lane 9 and second work
Make to be equipped with multiple air return lane protection pillars 6 between face air return lane 10, multiple connection roadways 8 are provided between air return lane protection pillar 6, the
Will be using first job face air return lane 4 as second main air inlet of working face, second working face during two 5 back production of working face
The return air protection pillar 6 between the first working face 1 and second working face 5 is produced, it is necessary to which total length is excessively empty in the lump during 5 back production
Lane；
Step 5：The projecting coal bed no coal column of high methane that one~step 4 of repeat step is sequentially completed all working face is opened
Adopt.
Top release, hydrofracturing are cut further to take, then reduces air return lane between gob side entry retaining surrouding rock deformation and double lanes
Protection pillar 6.If gob side entry retaining rear section can not meet air-conditioning requirement, the fire dam 11 of connection roadway 8 is opened nearby, so as to
Meet air-conditioning requirement.
Claims (6)
1. a kind of projecting coal bed double lane arrangements of high methane are without pillar mining method, it is characterised in that step is as follows：
Step 1：Using engineering analogy or stress monitoring method, the main air inlet in first job face is tunneled out（2）, at first
Working face（1）Supporting pressure peak area beyond carry out double lanes drivings, tunnel out first job face auxiliary air inlet lane（3）With
One tailentry（4）；
Step 2：First job face auxiliary air inlet lane（3）With first job face air return lane（4）Between be equipped with multiple air return lanes
Protection pillar（6）, air return lane protection pillar（6）Between be equipped with it is multiple perforation first job face auxiliary air inlet lanes（3）With first
Tailentry（4）Connection roadway（8）, connection roadway（8）In be equipped with fire dam（11）, and utilize connection roadway（8）Ventilation；
Step 3：To the first working face（1）Back production, along the first working face（1）With first job face auxiliary air inlet lane（3）Between
Inner side tunnel construct road-in packing（7）, form gob side entry retaining, the main air inlet in first job face（2）Stayed with being formed along sky
The first job face auxiliary air inlet lane in lane（3）Used at the same time as intake, two crossheading inlet air of working face, first job
The main air inlet in face（2）, first job face auxiliary air inlet lane（3）The gob side entry retaining of composition and first job face air return lane（4）
Through connection roadway（8）Carry out return air and form Y-shaped ventilating system；
Step 4：Repeat step one is to step 2, for second working face（5）Tunneled using identical double lanes, tunnel out the
Two working face auxiliary air inlet lanes（9）With second tailentry（10）, second working face auxiliary air inlet lane（9）With
Two tailentries（10）Between be equipped with multiple air return lane protection pillars（6）, air return lane protection pillar（6）Between be provided with it is more
A connection roadway（8）, second working face（5）Will be by first job face air return lane during back production（4）As second working face master
Air inlet, second working face（5）By the first working face during back production（1）With second working face（5）Between return air shield lane
Coal column（6）Extraction is, it is necessary to total length Guo Kong lanes in the lump；
Step 5：One ~ step 4 of repeat step is sequentially completed the projecting coal bed no coal pillar mining of high methane in all working face.
2. the projecting coal bed double lane arrangements of a kind of high methane according to claim 1 are without pillar mining method, it is characterised in that：
Roadway layout is beyond supporting pressure peak area on the outside of double lane driving faces, air return lane protection pillar（6）Width is 30m-
70m；The connection roadway（8）Length is 150m-200m, to reduce connection roadway driving amount and invalid support cost.
3. the projecting coal bed double lane arrangements of a kind of high methane according to claim 1 are without pillar mining method, it is characterised in that：
Road-in packing（7）For high water filling material or paste filling material.
4. the projecting coal bed double lane arrangements of a kind of high methane according to claim 1 are without pillar mining method, it is characterised in that：
Air return lane protection pillar（6）Interior connection roadway（8）With first job face auxiliary air inlet lane（3）With first job face air return lane
（4）The processing of infall strengthening supporting.
5. the projecting coal bed double lane arrangements of a kind of high methane according to claim 1 are without pillar mining method, it is characterised in that：
Top release, hydrofracturing are cut further to take, then reduces air return lane protection pillar between gob side entry retaining surrouding rock deformation and double lanes
（6）.
6. the projecting coal bed double lane arrangements of a kind of high methane according to claim 1 are without pillar mining method, it is characterised in that：
If gob side entry retaining rear section can not meet air-conditioning requirement, connection roadway is opened nearby（8）Fire dam（11）, to meet to lead to
Wind requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711225582.3A CN108005655A (en) | 2017-11-29 | 2017-11-29 | A kind of projecting coal bed double lane arrangements of high methane are without pillar mining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711225582.3A CN108005655A (en) | 2017-11-29 | 2017-11-29 | A kind of projecting coal bed double lane arrangements of high methane are without pillar mining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108005655A true CN108005655A (en) | 2018-05-08 |
Family
ID=62054634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711225582.3A Pending CN108005655A (en) | 2017-11-29 | 2017-11-29 | A kind of projecting coal bed double lane arrangements of high methane are without pillar mining method |
Country Status (1)
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756882A (en) * | 2018-05-29 | 2018-11-06 | 中煤能源研究院有限责任公司 | A kind of district sublevel entry adopts recovery method without the short length of filling of driving formula |
| CN108952716A (en) * | 2018-06-22 | 2018-12-07 | 太原理工大学 | A kind of more lane method for arranging in high seam coal wall |
| CN109113743A (en) * | 2018-08-07 | 2019-01-01 | 中国神华能源股份有限公司 | The method of coal working face coal pillar recovery |
| CN109209428A (en) * | 2018-08-13 | 2019-01-15 | 中煤能源研究院有限责任公司 | The roadway workface arragement construction of pillar extraction between a kind of achievable lane |
| CN110295903A (en) * | 2019-06-26 | 2019-10-01 | 太原理工大学 | Thin seam working surface stays the parallelogram gob-surrounded pillar setting method in lane |
| CN110374597A (en) * | 2019-06-26 | 2019-10-25 | 陕西永明煤矿有限公司 | Thin seam working surface partial mining stays the rectangle gob-surrounded pillar setting method in lane |
| CN111287749A (en) * | 2020-04-21 | 2020-06-16 | 天地科技股份有限公司 | Anti-impact method for wide excavation and narrow excavation of rock burst coal seam near-empty roadway |
| CN111828015A (en) * | 2020-08-05 | 2020-10-27 | 天津爱纷销科技有限公司 | Roadway construction method |
| CN112963196A (en) * | 2021-03-15 | 2021-06-15 | 中国煤炭科工集团太原研究院有限公司 | Filling mining method for protecting coal pillars between lanes |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756882A (en) * | 2018-05-29 | 2018-11-06 | 中煤能源研究院有限责任公司 | A kind of district sublevel entry adopts recovery method without the short length of filling of driving formula |
| CN108952716A (en) * | 2018-06-22 | 2018-12-07 | 太原理工大学 | A kind of more lane method for arranging in high seam coal wall |
| CN109113743A (en) * | 2018-08-07 | 2019-01-01 | 中国神华能源股份有限公司 | The method of coal working face coal pillar recovery |
| CN109209428A (en) * | 2018-08-13 | 2019-01-15 | 中煤能源研究院有限责任公司 | The roadway workface arragement construction of pillar extraction between a kind of achievable lane |
| CN110295903A (en) * | 2019-06-26 | 2019-10-01 | 太原理工大学 | Thin seam working surface stays the parallelogram gob-surrounded pillar setting method in lane |
| CN110374597A (en) * | 2019-06-26 | 2019-10-25 | 陕西永明煤矿有限公司 | Thin seam working surface partial mining stays the rectangle gob-surrounded pillar setting method in lane |
| CN110374597B (en) * | 2019-06-26 | 2021-01-29 | 陕西永明煤矿有限公司 | Rectangular island coal pillar setting method for separated mining and roadway retaining of thin coal seam working face |
| CN111287749A (en) * | 2020-04-21 | 2020-06-16 | 天地科技股份有限公司 | Anti-impact method for wide excavation and narrow excavation of rock burst coal seam near-empty roadway |
| CN111828015A (en) * | 2020-08-05 | 2020-10-27 | 天津爱纷销科技有限公司 | Roadway construction method |
| CN111828015B (en) * | 2020-08-05 | 2022-09-13 | 山东中大机械股份有限公司 | Roadway construction method |
| CN112963196A (en) * | 2021-03-15 | 2021-06-15 | 中国煤炭科工集团太原研究院有限公司 | Filling mining method for protecting coal pillars between lanes |
| CN112963196B (en) * | 2021-03-15 | 2023-10-03 | 中国煤炭科工集团太原研究院有限公司 | Method for filling and mining protection coal pillar between roadways |
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