CN104806291A - Method for verifying near outburst coal bed tunneling working face joint region - Google Patents
Method for verifying near outburst coal bed tunneling working face joint region Download PDFInfo
- Publication number
- CN104806291A CN104806291A CN201510178457.6A CN201510178457A CN104806291A CN 104806291 A CN104806291 A CN 104806291A CN 201510178457 A CN201510178457 A CN 201510178457A CN 104806291 A CN104806291 A CN 104806291A
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- coal bed
- value
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- drilling
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- 239000003245 coal Substances 0.000 title claims abstract description 119
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000005641 tunneling Effects 0.000 title abstract description 11
- 238000005553 drilling Methods 0.000 claims abstract description 46
- 238000010276 construction Methods 0.000 claims abstract description 25
- 238000005520 cutting process Methods 0.000 claims abstract description 15
- 238000003795 desorption Methods 0.000 claims abstract description 4
- 238000010200 validation analysis Methods 0.000 claims description 30
- 239000000843 powder Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract 4
- 238000000576 coating method Methods 0.000 abstract 4
- 230000002265 prevention Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses a method for verifying a near outburst coal bed tunneling working face joint region. The method comprises the following steps that a, a verified region of a tunneling working face is an outburst coal bed group, and the outburst coal bed group of the tunneling working face comprises a lower coating outburst coal bed and an upper coating outburst coal bed; b, the lower coating outburst coal bed or the upper coating outburst coal bed is drilled; c, a drilling cutting index method is adopted in a drilling construction process to measure drilling cutting amount S value and gas desorption index K1 value; d, the measured S value and K1 value are compared with clinical values, and if the measured S value and the K1 value are both smaller than the clinical values, the tunneling working face does not have an outburst risk. According to the method provided by the invention, a tunneling working face head verifies and drills a striking region nearby the coal bed, whether the outburst risk exists or not is judged by taking the K1 value in the drilling cutting index method as the clinical value, and a basis for verifying the similar near outburst coal bed tunneling working face joint region is provided.
Description
Technical field
The present invention relates to field of coal mine safety, particularly a kind of method of closely projecting coal bed drift face associating area validation.
Background technology
In order to strengthen outburst prevention work further, national Coal Mine Safety Supervision Bureau promulgated " control coal and gas prominent regulation " in 2009.In new regulation, the content of outstanding control part in former " control coal and gas prominent detailed rules and regulations " is reconfigured, defines regional complex outburst prevention measures and local comprehensive outburst control measure.Wherein last link of regional complex outburst prevention measures is area validation.Work plane outburst hazard prediction steps and the method for area validation work during stone door punching coal and local comprehensive outburst control measure are identical, but when driving face and coal-face operation, both slightly distinguish.Area validation carries out for some specific regions, and this specific region refers to through regional prediction without outburst hazard or taking region outburst prevention measures and the region delimited without outburst hazard through validity check.But carrying out according to " control coal and gas prominent regulation ", closely in projecting coal bed area validation process, occurring the awkward situation that no standard can be complied with.Such as, two-layer coal all has outburst hazard, and interlamellar spacing is very near, before one deck coal carries out mining work activities wherein, except needs take regional complex outburst prevention measures to this coal seam, also needs to take same measure to adjacent layer.At present, with regard to domestic projecting mine, the projecting coal bed associating area validation that how to carry out spacing being less than to 5m still belongs to blank.
Therefore, need to propose a kind of method for the closely projecting coal bed drift face associating area validation in projecting mine closely projecting coal bed drift face quaternity protrusion-dispelling system.
Summary of the invention
In view of this, a kind of closely projecting coal bed drift face is the object of the present invention is to provide to combine the method for area validation, meet head on to set area validation boring to projecting coal bed by driving face, K1 value is adopted in method of drilling index to determine whether to have outburst hazard for threshold, for the area validation of similar closely projecting coal bed group's digging laneway provides foundation, fill up the blank which kind of method " control coal and gas prominent specifies " is taked about closely projecting coal bed group's tunnelling area validation link to adjacent layer and how to be implemented, avoid carrying out closely in projecting coal bed area validation process according to " control coal and gas prominent regulation ", there is the awkward situation that no standard can be complied with.
The method of a kind of closely projecting coal bed drift face associating area validation of the present invention, comprises the following steps:
A. the validation region of driving face is projecting coal bed group, the projecting coal bed group of driving face comprise underlie projecting coal bed and on cover projecting coal bed;
B. to underlie projecting coal bed or on cover and projecting coal bedly carry out drilling construction;
C. in drilling construction process, adopt method of drilling index, measure coal powder quantity of bore S value and desorption of mash gas index K
1value;
D. by the S value that records and K
1value and threshold contrast, if S value and K
1value is all less than threshold, then driving face is regarded as without outburst danger.
Further, when projecting coal bed group's digging laneway, when surrounding have spacing be less than underliing of 2m or on cover projecting coal bed time, to underlie or on cover and projecting coal bedly carry out drilling construction, measure S value and K
1value.
Further, underlie described in projecting coal bed and on cover projecting coal bed all adopt concordant boring and layer-through drilling construct.
Further, described in underlie projecting coal bed and on when covering projecting coal bed employing concordant drilling construction, whole S values that 1m measures this 1m section are often crept in boring, hole often to creep into 2m and measure a drilling cuttings K
1value.
Further, described in underlie the construction of projecting coal bed employing layer-through drilling time, boring is often crept into 2m and is measured a drilling cuttings K
1value.
Further, when covering the construction of projecting coal bed employing layer-through drilling on described, whole S values that 1m measures this 1m section are often crept in boring, and boring is often crept into 2m and measured a drilling cuttings K
1value.
Further, be 6kg/m, K according to the threshold of " control coal and gas prominent specify " S value
1the threshold of value is
Beneficial effect of the present invention: the method for a kind of closely projecting coal bed drift face associating area validation of the present invention, meet head on to set area validation boring to projecting coal bed by driving face, K1 value is adopted in method of drilling index to determine whether to have outburst hazard for threshold, for the area validation of similar closely projecting coal bed group's digging laneway provides foundation, fill up the blank which kind of method " control coal and gas prominent specifies " is taked about closely projecting coal bed group's tunnelling area validation link to adjacent layer and how to be implemented, avoid carrying out closely in projecting coal bed area validation process according to " control coal and gas prominent regulation ", there is the awkward situation that no standard can be complied with.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the projecting coal bed time domain checking firing pattern that underlies of the present invention;
Fig. 2 is that sectional drawing is arranged in projecting coal bed time domain checking boring of underliing of the present invention;
Fig. 3 be of the present invention on cover projecting coal bed time domain checking firing pattern;
Fig. 4 be of the present invention on cover projecting coal bed time domain checking boring arrange sectional drawing.
Detailed description of the invention
As shown in the figure: the method for a kind of closely projecting coal bed drift face associating area validation of the present embodiment, comprises the following steps:
A. the validation region of driving face is projecting coal bed group, the projecting coal bed group of driving face comprise underlie projecting coal bed and on cover projecting coal bed;
B. to underlie projecting coal bed or on cover and projecting coal bedly carry out drilling construction;
C. in drilling construction process, adopt method of drilling index, measure coal powder quantity of bore S value and desorption of mash gas index K
1value;
D. by the S value that records and K
1value and threshold contrast, if S value and K
1value is all less than threshold, then driving face is regarded as without outburst danger, gets rid of other abnormal conditions in mensuration process, is considered as without other abnormal conditions.
In the present embodiment, when projecting coal bed group's digging laneway, when surrounding have spacing be less than underliing of 2m or on cover projecting coal bed time, to underlie or on cover and projecting coal bedly carry out drilling construction, measure S value and K
1value.
In the present embodiment, described in underlie projecting coal bed and on cover projecting coal bed all adopt concordant boring and layer-through drilling construction, improve mensuration accuracy.
In the present embodiment, described in underlie projecting coal bed and on when covering projecting coal bed employing concordant drilling construction, whole S values that 1m measures this 1m section are often crept in boring, hole often to creep into 2m and measure a drilling cuttings K
1value.When underlie projecting coal bed employing concordant drilling construction time, meeting head on to construct to work plane front coal body from this coal bed drift face, three diameters are 42mm, hole depth is the boring of 10 ~ 10.5m, one of them boring is positioned in the middle part of this coal seam digging laneway section, and be parallel to tunneling direction, the whole hole point of two other boring is positioned at the outer 2m of drift section both sides outline line, boring is numbered 1# ~ 3#, and whole S values that 1m measures this 1m section are often crept in boring, and boring is often crept into 2m and measured a drilling cuttings K
1value; When on cover projecting coal bed employing concordant drilling construction time, meeting head on to construct to work plane front coal body from this coal bed drift face, three diameters are 42mm, hole depth is the boring of 10 ~ 10.5m, one of them boring is positioned in the middle part of this coal seam digging laneway section, and be parallel to tunneling direction, the whole hole point of two other boring is positioned at the outer 2m of drift section both sides outline line, boring is numbered 7# ~ 9#, and whole S values that 1m measures this 1m section are often crept in boring, and boring is often crept into 2m and measured a drilling cuttings K
1value.
In the present embodiment, described in underlie the construction of projecting coal bed employing layer-through drilling time, boring is often crept into 2m and is measured a drilling cuttings K
1value.During the projecting coal bed employing layer-through drilling that underlies construction, meeting head on from this coal bed drift face, construction three diameters are downwards 42mm, hole depth is the boring of 11.2 ~ 12.5m, one of them boring is positioned in the middle part of digging laneway section, and be parallel to tunneling direction, the whole hole point of two other boring is arranged in underlie coal seam corresponding to the outer 2m of this heading section both sides outline line, and boring is numbered 4# ~ 6#, because boring is all lower perform hole, S value cannot be measured, but can K be measured
1value, passes through K
1value determines whether underlie coal seam has outburst hazard.
In the present embodiment, when covering the construction of projecting coal bed employing layer-through drilling on described, whole S values that 1m measures this 1m section are often crept in boring, and boring is often crept into 2m and measured a drilling cuttings K
1value.On cover projecting coal bed employing layer-through drilling construction time, meeting head on upwards to construct from this coal bed drift face, six diameters are 42mm, hole depth is the boring of 5 ~ 12.5m, often organizing boring is two, wherein one group of boring is positioned in the middle part of this coal seam digging laneway section, bore direction is tunneling direction, the whole hole points of other two groups of borings be arranged in the outer 2m of this heading section both sides outline line corresponding on cover coal seam, boring is numbered 1# ~ 6#, whole S values that 1m measures this 1m section are often crept in boring, often creep into 2m and measure a drilling cuttings K
1value.
In the present embodiment, the threshold according to " control coal and gas prominent specifies " S value is 6kg/m, K
1the threshold of value is
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. closely projecting coal bed drift face combines a method for area validation, and it is characterized in that, the method comprises the following steps:
A. the validation region of driving face is projecting coal bed group, the projecting coal bed group of driving face comprise underlie projecting coal bed and on cover projecting coal bed;
B. to underlie projecting coal bed or on cover and projecting coal bedly carry out drilling construction;
C. in drilling construction process, adopt method of drilling index, measure coal powder quantity of bore S value and desorption of mash gas index K
1value;
D. by the S value that records and K
1value and threshold contrast, if S value and K
1value is all less than threshold, then driving face is regarded as without outburst danger.
2. the method for a kind of closely projecting coal bed drift face associating area validation according to claim 1, it is characterized in that: when projecting coal bed group's digging laneway, when surrounding have spacing be less than underliing of 2m or on cover projecting coal bed time, to underlie or on cover and projecting coal bedly carry out drilling construction, measure S value and K
1value.
3. the method for a kind of closely projecting coal bed drift face associating area validation according to claim 1 and 2, is characterized in that: described in underlie projecting coal bed and on cover projecting coal bed concordant boring and the layer-through drilling of all adopting and construct.
4. the method for a kind of closely projecting coal bed drift face associating area validation according to claim 3, it is characterized in that: described in underlie projecting coal bed and on when covering projecting coal bed employing concordant drilling construction, whole S values that 1m measures this 1m section are often crept in boring, and boring is often crept into 2m and measured a drilling cuttings K
1value.
5. the method for a kind of closely projecting coal bed drift face associating area validation according to claim 3, is characterized in that: described in underlie the construction of projecting coal bed employing layer-through drilling time, boring is often crept into 2m and is measured a drilling cuttings K
1value.
6. the method for a kind of closely projecting coal bed drift face associating area validation according to claim 3, it is characterized in that: when covering the construction of projecting coal bed employing layer-through drilling on described, whole S values that 1m measures this 1m section are often crept in boring, and boring is often crept into 2m and measured a drilling cuttings K
1value.
7. the method for a kind of closely projecting coal bed drift face associating area validation according to claim 1, is characterized in that: the threshold according to " control coal and gas prominent specifies " S value is 6kg/m, K
1the threshold of value is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178457.6A CN104806291A (en) | 2015-03-18 | 2015-04-15 | Method for verifying near outburst coal bed tunneling working face joint region |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015101187382 | 2015-03-18 | ||
| CN201510118738 | 2015-03-18 | ||
| CN201510178457.6A CN104806291A (en) | 2015-03-18 | 2015-04-15 | Method for verifying near outburst coal bed tunneling working face joint region |
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| CN104806291A true CN104806291A (en) | 2015-07-29 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332695A (en) * | 2015-08-17 | 2016-02-17 | 綦江县科信煤矿安全技术服务有限公司 | Prediction method of coal working face |
| CN107143375A (en) * | 2017-07-13 | 2017-09-08 | 辽宁工程技术大学 | A kind of comprehensive outburst control method in great burying gently inclined seam region |
| CN107237619A (en) * | 2016-03-24 | 2017-10-10 | 张鹏翔 | A kind of outburst prediction index coal powder quantity of bore fast accurate intelligent measurement method |
| CN110458369A (en) * | 2019-08-16 | 2019-11-15 | 西安科技大学 | A kind of coal and gas prominent coal seam getting working face risk integrated estimation system |
| CN111396118A (en) * | 2020-03-19 | 2020-07-10 | 贵州盘江精煤股份有限公司 | Coal seam group rapid rock cross-cut coal uncovering outburst eliminating method |
| CN112324487A (en) * | 2020-10-20 | 2021-02-05 | 中煤科工集团重庆研究院有限公司 | Double-index evaluation method for outburst prevention effect of coal roadway strip |
| CN113216968A (en) * | 2021-06-02 | 2021-08-06 | 江苏徐矿能源股份有限公司张双楼煤矿 | Pressure relief and scour prevention method for coal seam merging area |
| CN113446063A (en) * | 2021-08-13 | 2021-09-28 | 中煤科工集团重庆研究院有限公司 | Method for verifying fusion index region of close-range adjacent outburst coal seam |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332695A (en) * | 2015-08-17 | 2016-02-17 | 綦江县科信煤矿安全技术服务有限公司 | Prediction method of coal working face |
| CN107237619A (en) * | 2016-03-24 | 2017-10-10 | 张鹏翔 | A kind of outburst prediction index coal powder quantity of bore fast accurate intelligent measurement method |
| CN107143375A (en) * | 2017-07-13 | 2017-09-08 | 辽宁工程技术大学 | A kind of comprehensive outburst control method in great burying gently inclined seam region |
| CN107143375B (en) * | 2017-07-13 | 2019-03-26 | 辽宁工程技术大学 | A kind of comprehensive outburst control method in great burying gently inclined seam region |
| CN110458369A (en) * | 2019-08-16 | 2019-11-15 | 西安科技大学 | A kind of coal and gas prominent coal seam getting working face risk integrated estimation system |
| CN111396118A (en) * | 2020-03-19 | 2020-07-10 | 贵州盘江精煤股份有限公司 | Coal seam group rapid rock cross-cut coal uncovering outburst eliminating method |
| CN112324487A (en) * | 2020-10-20 | 2021-02-05 | 中煤科工集团重庆研究院有限公司 | Double-index evaluation method for outburst prevention effect of coal roadway strip |
| CN113216968A (en) * | 2021-06-02 | 2021-08-06 | 江苏徐矿能源股份有限公司张双楼煤矿 | Pressure relief and scour prevention method for coal seam merging area |
| CN113446063A (en) * | 2021-08-13 | 2021-09-28 | 中煤科工集团重庆研究院有限公司 | Method for verifying fusion index region of close-range adjacent outburst coal seam |
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Inventor after: Wen Guangcai Inventor after: Ji Chaohui Inventor after: Fan Xiaogang Inventor after: Gong Xuanping Inventor after: Sun Bingxing Inventor after: Cheng Bo Inventor after: Zhang Guangde Inventor after: Wang Jian Inventor after: Zou Yinhui Inventor after: Zhang Zhigang Inventor after: Zhou Yong Inventor after: Zhang Zhanguo Inventor after: Cheng Jiansheng Inventor after: Huang Guangli Inventor before: Hao Gui Inventor before: Huang Guangli Inventor before: Ji Chaohui Inventor before: Gong Xuanping Inventor before: Sun Bingxing Inventor before: Cheng Bo Inventor before: Wen Guangcai Inventor before: Zhang Guangde Inventor before: Wang Jian Inventor before: Zou Yinhui Inventor before: Zhang Zhigang Inventor before: Zhou Yong Inventor before: Zhang Zhanguo Inventor before: Cheng Jiansheng |
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Free format text: CORRECT: INVENTOR; FROM: HAO GUI WEN GUANGCAI ZHANG GUANGDE WANG JIAN ZOU YINHUI ZHANG ZHIGANG ZHOU YONG ZHANG ZHANGUO CHENG JIANSHENG HUANG GUANGLI JI CHAOHUI GONG XUANPING SUN BINGXING CHENG BO TO: WEN GUANGCAI ZHANG GUANGDE WANG JIAN ZOU YINHUI ZHANG ZHIGANG ZHOU YONG ZHANG ZHANGUO CHENG JIANSHENG HUANG GUANGLI JI CHAOHUI FAN XIAOGANG GONG XUANPING SUN BINGXING CHENG BO |
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Application publication date: 20150729 |
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| RJ01 | Rejection of invention patent application after publication |