CN102146794B - Grouting, consolidating and gob-side tunneling process method - Google Patents
Grouting, consolidating and gob-side tunneling process method Download PDFInfo
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- CN102146794B CN102146794B CN 201110052314 CN201110052314A CN102146794B CN 102146794 B CN102146794 B CN 102146794B CN 201110052314 CN201110052314 CN 201110052314 CN 201110052314 A CN201110052314 A CN 201110052314A CN 102146794 B CN102146794 B CN 102146794B
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Abstract
The invention discloses a grouting, consolidating and gob-side tunneling process method, comprising the steps of constructing a grouting drilling hole from a gas end roadway to a section air inlet roadway through a section coal pillar and/or paving a grouting pipe in the section air inlet roadway after high gas working face recovery; grouting the caved or partially caved section air inlet roadway through the constructed grouting hole or the paved grouting pipe, wherein a grouting body and a caved roof rock block form a consolidated body to fill the scrapped section air inlet roadway and plug harmful gases in a gob; and then reserving a coal pillar at an inner side of the section coal pillar close to the section air inlet roadway along a direction of the section air inlet roadway or tunneling a new section roadway completely along the edge of the consolidated body as a working face tail gate of the next section so as to recover the section coal pillar. The invention is a grouting, consolidating and gob-side tunneling process method capable of not only stopping accumulated gas of high gas coal face gob from leaking outside but also recovering most or all coal pillars between the original section air inlet roadway and the gas end roadway.
Description
Technical field
The invention belongs to the mining technical field, relate in particular to a kind of grouting reinforcement gob side entry driving process.
Background technology
The gob side entry driving technology has been arranged at present, mainly is for low gas face, does not stay or stay less coal column along the edge, goaf, the return aircourse of driving lower curtate.Build up a large amount of gas in the high gas coal work face goaf.Because former section intake adopts anchor pole to add the combination supporting technology of anchor cable usually, and considers the needs of gas tail road, former section intake usually is caving bad or substantially is not caving, therefore, and near the slump leakiness edge in goaf.If coal column is not stayed or stayed less to high Gassy Coal Face, can't stop the goaf to build up leaking in a large number of gas, therefore, must consider to stay larger section coal pillar, cause the significant wastage of coal resources.
Summary of the invention
The purpose of this invention is to provide and a kind ofly both can stop high gas coal work face goaf to build up gas to leak in a large number, simultaneously, again can be the overwhelming majority of the coal column between former section intake and the gas tail road or the grouting reinforcement gob side entry driving process that all reclaims.
For achieving the above object, the present invention adopts following technical scheme: a kind of grouting reinforcement gob side entry driving process may further comprise the steps:
After high Gassy Coal Face back production, bore injected hole and/or in section air intake lane, lay Grouting Pipe to the construction of section air intake lane by section coal pillar from gas tail road;
By the injected hole of construction and/or the Grouting Pipe of laying, to being caving or the section air intake lane slip casting that is caving of part, injecting cement paste forms induration with being caving roof rock again, the section air intake lane of scrapping with filling, and the pernicious gas in shutoff goaf;
Then along section air intake lane direction, stay coal column or fully along the induration edge, tunnel new section road near the inboard in section air intake lane at described section coal pillar, as the work plane tailgate of next section, realize the recovery to described section coal pillar.
The borehole bottom location that the borehole bottom location of described injected hole is positioned at the top of lane, section air intake lane wall or Grouting Pipe is positioned at the top of section intake.
Should the airtight and slip casting shutoff of connection roadway of described section coal pillar and connection section air intake lane and gas tail road will be passed first during slip casting.
The mode of the present invention's usefulness slip casting is the fixed former section intake of filling well, the isolation goaf, can stop high gas coal work face goaf to build up gas leaks in a large number, stay a very little isolated coal pillar in described section coal pillar inboard, or fully along the induration edge, digging laneway again in former section coal pillar, tailgate as next section, the exploitation that can be next work plane is got ready, simultaneously, can or reclaim fully the overwhelming majority of the coal column between former section intake and the gas tail road.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the I-I view among Fig. 1.
The specific embodiment
By a kind of grouting reinforcement gob side entry driving process illustrated in figures 1 and 2, it is the process that is implemented in later fixed filling of high Gassy Coal Face back production, be section return airway 1 at former exploitation coal body 2 upsides, former exploitation coal body 2 downsides are section air intake lane 3, goaf 4 is between former exploitation coal body 2 rear sides, section return airway 1 and section air intake lane 3, section air intake lane 3 downsides are section coal pillar 6, and section coal pillar 6 downsides are gas tail road 7, and it may further comprise the steps:
(1) after high Gassy Coal Face back production, from gas tail road 7 by section coal pillar 6 to section air intake lane the 3 a plurality of inlet wells 8 of construction and in section air intake lane 3 interior laying Grouting Pipe 10, described a plurality of inlet well 8 passes section coal pillar 6, and the borehole bottom location of inlet well 8 is positioned at the top of section air intake lane 3 walls; Described Grouting Pipe 10 is positioned at section air intake lane, and the borehole bottom location of Grouting Pipe is positioned at the top in section air intake lane 3;
(2) again by inlet well 8 and the Grouting Pipe 10 of laying, to section air intake lane 3 slip castings that are caving or part is caving, should be first that the connection roadway 9 that passes described section coal pillar 6 and connection section air intake lane 3 and gas tail road 7 is airtight during slip casting, and slip casting shutoff, injecting cement paste be caving roof rock and form induration, the section air intake lane 3 of scrapping with filling, and the pernicious gas in shutoff goaf 4;
(3) then along section air intake lane 3 directions, stay fender 11 near the inboard in section air intake lanes 3 or fully along the induration edge at described section coal pillar 6, tunnel new section road 5, as the work plane tailgate of next section, realize the recovery to described section coal pillar 6.
Certainly, the present invention is not limited to above-mentioned form, a plurality of described inlet wells 8 of can constructing separately, by inlet well 8 to being caving or section air intake lane 3 slip castings that are caving of part.Perhaps also independent 3 interior laying Grouting Pipe 10 in section air intake lane, and by Grouting Pipe 10 to section air intake lane 3 slip castings that are caving or part is caving.All can reach goal of the invention.
The mode of the present invention's usefulness slip casting is the fixed former section intake 3 of filling well, isolation goaf 4, can stop high gas coal work face goaf 4 to build up leaking in a large number of gas, stay a very little isolated coal pillar 11 in described section coal pillar 6 inboards, or fully along the induration edge, digging laneway again in former coal column, tailgate as next section, the exploitation that can be next work plane is got ready, simultaneously, can or reclaim fully the overwhelming majority of the coal column between 3 roads, former section air intake lane and the gas tail road 7.
Claims (2)
1. grouting reinforcement gob side entry driving process is characterized in that: may further comprise the steps:
After high Gassy Coal Face back production, bore injected hole and/or in section air intake lane, lay Grouting Pipe to the construction of section air intake lane by section coal pillar from gas tail road;
Again by the injected hole of construction and/or the Grouting Pipe of laying, to the section air intake lane slip casting that is caving or part is caving, injecting cement paste be caving roof rock and form induration, the section air intake lane of scrapping with filling, and the pernicious gas in shutoff goaf, should will pass the airtight and slip casting shutoff of connection roadway of described section coal pillar and connection section air intake lane and gas tail road first during slip casting;
Then along section air intake lane direction, stay coal column or fully along the induration edge, tunnel new section road near the inboard in section air intake lane at described section coal pillar, as the work plane tailgate of next section, realize the recovery to described section coal pillar.
2. grouting reinforcement gob side entry driving process as claimed in claim 1 is characterized in that: the borehole bottom location that the borehole bottom location of described injected hole is positioned at the top of lane, section air intake lane wall or Grouting Pipe is positioned at the top of section intake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110052314 CN102146794B (en) | 2011-03-04 | 2011-03-04 | Grouting, consolidating and gob-side tunneling process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110052314 CN102146794B (en) | 2011-03-04 | 2011-03-04 | Grouting, consolidating and gob-side tunneling process method |
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| Publication Number | Publication Date |
|---|---|
| CN102146794A CN102146794A (en) | 2011-08-10 |
| CN102146794B true CN102146794B (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110052314 Expired - Fee Related CN102146794B (en) | 2011-03-04 | 2011-03-04 | Grouting, consolidating and gob-side tunneling process method |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865099B (en) * | 2012-08-29 | 2014-12-24 | 山西晋煤集团金鼎煤机矿业有限责任公司 | Under-building, under-railway and under-water mining filling process |
| CN102996134B (en) * | 2012-11-22 | 2015-04-15 | 山东科技大学 | Roadway advancing method for realizing grouting consolidation and reserving small coal pillars |
| CN103899342A (en) * | 2014-04-15 | 2014-07-02 | 中国矿业大学(北京) | Gob-side entrydriving coal pillar anchor cable through reinforcing method |
| CN104153807B (en) * | 2014-07-04 | 2016-06-29 | 河南理工大学 | A kind of placement method of thick seam slicing system Coal Face Passing Through lower leaf old working |
| CN104074539B (en) * | 2014-07-22 | 2016-05-11 | 贵州大学 | One is held back gas drainage under suction structure and implementation method thereof |
| CN104533482B (en) * | 2014-10-28 | 2016-08-31 | 淮浙煤电有限责任公司顾北煤矿分公司 | A kind of reinforcement means improving gob side entry driving fender stability |
| CN107882562B (en) * | 2016-09-29 | 2020-06-05 | 河南理工大学 | Method for realizing recovery of coal pillars arranged on opposite-pulling working face |
| CN106869967B (en) * | 2017-04-05 | 2018-10-19 | 中煤科工集团西安研究院有限公司 | The routed husky remote jet of driving face gushing water disturbs grouting method |
| CN108930543A (en) * | 2018-07-17 | 2018-12-04 | 河南理工大学 | A kind of big cross section gob side entry driving coupling supporting structure and construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1701916A1 (en) * | 1990-03-20 | 1991-12-30 | Институт Горного Дела Ан Казсср | Method of mining inclined ore deposits |
| CN101169042A (en) * | 2007-11-23 | 2008-04-30 | 煤炭科学研究总院抚顺分院 | Caving zone edge inclined drill hole bushing burying method for extracting and discharging gas for goaf and adjacent layer |
| CN101806226A (en) * | 2010-03-19 | 2010-08-18 | 中国矿业大学 | Mined out space dam-type filling method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1828921C (en) * | 1990-03-05 | 1993-07-23 | Институт Горного Дела Ан Казсср | Method for working pillars in room-and-pillar mining system |
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2011
- 2011-03-04 CN CN 201110052314 patent/CN102146794B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1701916A1 (en) * | 1990-03-20 | 1991-12-30 | Институт Горного Дела Ан Казсср | Method of mining inclined ore deposits |
| CN101169042A (en) * | 2007-11-23 | 2008-04-30 | 煤炭科学研究总院抚顺分院 | Caving zone edge inclined drill hole bushing burying method for extracting and discharging gas for goaf and adjacent layer |
| CN101806226A (en) * | 2010-03-19 | 2010-08-18 | 中国矿业大学 | Mined out space dam-type filling method |
Non-Patent Citations (2)
| Title |
|---|
| 沿空留巷技术在高瓦斯采煤工作面的运用与思考;贺启录;《山西焦煤科技》;20080715;52-53 * |
| 贺启录.沿空留巷技术在高瓦斯采煤工作面的运用与思考.《山西焦煤科技》.2008,52-53. |
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| CN102146794A (en) | 2011-08-10 |
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