CN103939099A - Method for controlling strong shock risk coal seam group rock burst - Google Patents
Method for controlling strong shock risk coal seam group rock burst Download PDFInfo
- Publication number
- CN103939099A CN103939099A CN201410144452.7A CN201410144452A CN103939099A CN 103939099 A CN103939099 A CN 103939099A CN 201410144452 A CN201410144452 A CN 201410144452A CN 103939099 A CN103939099 A CN 103939099A
- Authority
- CN
- China
- Prior art keywords
- release
- coal
- seam
- adjacent layer
- pressure relief
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a method for controlling strong shock risk coal seam group rock burst. The method particularly comprises the following steps: (1) selecting an adjacent layer of mining: selecting a coal seam having no shock risk or low shock risk to serve as the adjacent layer of mining at a working seam needing pre-pressure relief due to high shock risk; (2) mining the adjacent layer: carrying out whole-layer continuous pressure-relief mining on the selected adjacent layer in the step (1) by adopting a gob-side entry retaining method without leaving coal pillar; (3) carrying out secondary pressure relief on the working seam; (4) testing the pressure relief effect: after carrying out the pressure relief risk eliminating method, testing the pressure relief effect on the working seam by utilizing one out of a microseism system, a stress monitoring system and a drilling cuttings method; if the pressure relief effect does not achieve the needed effect, repeating the step (3) till the needed pressure relief effect is achieved. The method has the advantages that the needed pre-pressure relief effect can be achieved with no need for carrying out pressure relief on the working seam; the normal production of the working seam is not influenced; the safety of working personnel is increased.
Description
Technical field
The method of preventing and treating that the present invention relates to the dangerous coal seam group bump of a kind of thump, belongs to safety of coal mines technical field.
Background technology
Impulsion pressure is one of mine coal rock dynamic disaster, in recent years due to the increase of mining depth, the expansion of mine scale, continuous extension and the mining conditions of development end become increasingly complex, impulsion pressure accident is more and more serious, having there is bump accident in most mines, has had a strong impact on mine workman's physical and mental health and the production safety in mine.The danger of therefore preventing and reduce impulsion pressure seems particularly important and urgent to Mine Safety in Production and economic benefit.The pre-release of whole layer in the dangerous coal seam of thump has very important meaning for the control of impulsion pressure.Conventional danger of burst solution danger method has release explosion, coal-bed flooding, boring release, Oriented Fracture etc.Traditional these are separated danger methods and are all implemented at working seam work plane, are a working seam part owing to implementing to make the method for topping exploitation at working seam work plane, can not the release exploitation continuously of whole layer, can not mining rock stratum, and there is limitation.These methods can not reach well pre-release effect, and affect the normal production of working seam work plane, have certain danger.
Summary of the invention
The problem existing for above-mentioned prior art, the method of preventing and treating that the invention provides the dangerous coal seam group bump of a kind of thump, without implementing at working seam, can reach required pre-release effect, can not affect the normal production of working seam, improve staff's safety.
To achieve these goals, concrete steps of the present invention are:
(1) adjacent layer of selection exploitation: because of the dangerous working seam place that needs pre-release of serious impact, select the coal seam without shock hazard or weak shock hazard, as the adjacent layer of exploitation, avoided the limitation of a pre-pressure relief method working seam;
(2) adjacent layer is exploited: the adjacent layer that step (1) is chosen adopts the method for gob side entry retaining carry out the continuous release exploitation of whole layer and do not stay coal column, avoids coal column to cause stress raisers;
(3) working seam is taked secondary release:
A. determine the particular location of the coal rock layer that needs release, according to coal rock layer thickness and strength factor between adjacent layer and working seam, determine the rock stratum and the bore position that need release, hole;
B. boring is reinforced and sealing of hole;
C. according to working seam region of stress concentration characteristic and the effect that need to reach, boring is adopted to one of them release solution danger method of release explosion, coal-bed flooding, boring release and Oriented Fracture, implement;
(4) inspection release effect: implement after release solution danger method, one of them is tested to working seam release effect to utilize microseismic system, stress monitoring system and drilling cuttings method; If release effect does not reach required effect, repeating step (3) is until reach required release effect.
Can carry out pre-release to the mined bed of serious impact danger by adjacent layer full seam extraction, its principle is: after adjacent layer full seam extraction, will cause destruction and the motion of overburden structure, the heavily stressed of working seam discharged, reduce shock hazard.
Further, the adjacent layer of described exploitation adopts contiguous soft stratum.
Compared with prior art, the present invention can shift to an earlier date release to mined bed by the continuous release exploitation of whole layer of adjacent layer and the local release of layer-through drilling, ageing length, and area is large, unload pressure energy and reach good effect, be better than the method for a working seam part in topping exploitation; Implement at working seam, so do not affect the normal production of working seam work plane, improve staff's safety, can carry out pre-release to working seam well simultaneously.
Brief description of the drawings
Fig. 1 is a kind of local destressing borehole position view in the present invention;
Fig. 2 is another kind of local destressing borehole position view in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Concrete steps of the present invention are:
(1) adjacent layer of selection exploitation: because of the dangerous working seam place that needs pre-release of serious impact, select the coal seam without shock hazard or weak shock hazard, as the adjacent layer of exploitation, avoided the limitation of a pre-pressure relief method working seam;
(2) adjacent layer is exploited: the adjacent layer that step (1) is chosen adopts the method for gob side entry retaining carry out the continuous release exploitation of whole layer and do not stay coal column, avoids coal column to cause stress raisers;
(3) working seam is taked secondary release:
A. determine the particular location of the coal rock layer that needs release, as depicted in figs. 1 and 2, according to coal rock layer thickness and strength factor between adjacent layer and working seam, determine the rock stratum and the bore position that need release, hole;
B. boring is reinforced and sealing of hole;
C. according to working seam region of stress concentration characteristic and the effect that need to reach, boring is adopted to one of them release solution danger method of release explosion, coal-bed flooding, boring release and Oriented Fracture, implement;
(4) inspection release effect: implement after release solution danger method, one of them is tested to working seam release effect to utilize microseismic system, stress monitoring system and drilling cuttings method; If release effect does not reach required effect, repeating step (3) is until reach required release effect.
Release explosion is a kind of unloading pressure means that changes stress distribution by implement boring and explosion in coal and rock.Can discharge to greatest extent at stope and upper and lower two lane shock blastings the elasticity energy accumulating in coal body, near work plane and roadway's sides form release failure zone, pressure increased area is shifted to coal body deep.Release explosion is a kind of method the most frequently used in impulsion pressure danger releasing measures.
Coal-bed flooding be by high pressure to coal body water filling, to change the physical property of coal body and produce crack around coal and rock, play and reduce coal body compressive strength and destroy original structure to discharge the energy of accumulation, reduce the object of suffered stress.A large amount of researchs show, the unidirectional compressive strength of coal measure strata rock stratum reduces along with the increase of water content.
Adopt coal body boring can discharge the elasticity energy gathering in coal body, rising district eliminates stress.Roof strata acts on coal body, and coal body suffered pressure in work plane front will have larger rising, and boring release makes originally to act on the heavily stressed rock mass deep transfer to unloading beyond nip of peripheral rock by boring.The stress-relief process of this mode is that the integrality taking tunnel-surrounding rock mass is destructurized as cost.
Oriented Fracture has directed hydraulic fracture method and directional blasting crack method.
Directed hydraulic fracture method is exactly artificially in rock stratum, manufactures in advance a crack, in the short period of time, adopt water under high pressure by rock mass along the gash fracture of manufacturing in advance.Under the effect of water under high pressure, the radius that breaks of rock mass can reach 15-25m, and what have is even larger.
Adopt directed hydraulic fracture method can change simply, effectively, at low cost the physico-mechanical properties of rock mass, therefore this method can be used for lowering Hazards of Rock Burst, the physico-mechanical properties that changes roof rock mass, is divided into hard thick-layer top board several layerings or destroys its integrality; For safeguarding gallery, will hang top and choose; In coal body, manufacture crack, be conducive to gas drainage under suction; Destroy the integrality of coal body, the coal dust producing while reducing exploitation etc.
When near working seam during not without the coal seam of shock hazard or weak shock hazard, can adopt the adjacent layer of contiguous soft stratum as exploitation, thereby ensure smooth enforcement of the present invention.
Claims (2)
1. the method for preventing and treating of the dangerous coal seam group bump of thump, is characterized in that, concrete steps are:
(1) adjacent layer of selection exploitation: because of the dangerous working seam place that needs pre-release of serious impact, select the coal seam without shock hazard or weak shock hazard, as the adjacent layer of exploitation;
(2) adjacent layer is exploited: the adjacent layer that step (1) is chosen adopts the method for gob side entry retaining carry out the continuous release exploitation of whole layer and do not stay coal column;
(3) working seam is taked secondary release:
A. determine the particular location of the coal rock layer that needs release, according to coal rock layer thickness and strength factor between adjacent layer and working seam, determine the rock stratum and the bore position that need release, hole;
B. boring is reinforced and sealing of hole;
C. according to working seam region of stress concentration characteristic and the effect that need to reach, boring is adopted to one of them release solution danger method of release explosion, coal-bed flooding, boring release and Oriented Fracture, implement;
(4) inspection release effect: implement after release solution danger method, one of them is tested to working seam release effect to utilize microseismic system, stress monitoring system and drilling cuttings method; If release effect does not reach required effect, repeating step (3) is until reach required release effect.
2. according to the method for preventing and treating of the dangerous coal seam group bump of a kind of thump described in claim 1, it is characterized in that, the adjacent layer of described exploitation adopts contiguous soft stratum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144452.7A CN103939099B (en) | 2014-04-11 | 2014-04-11 | The prevention and controls of the dangerous coal seam group bump of a kind of thump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410144452.7A CN103939099B (en) | 2014-04-11 | 2014-04-11 | The prevention and controls of the dangerous coal seam group bump of a kind of thump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939099A true CN103939099A (en) | 2014-07-23 |
| CN103939099B CN103939099B (en) | 2016-02-03 |
Family
ID=51186945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410144452.7A Expired - Fee Related CN103939099B (en) | 2014-04-11 | 2014-04-11 | The prevention and controls of the dangerous coal seam group bump of a kind of thump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103939099B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653226A (en) * | 2014-12-26 | 2015-05-27 | 中国矿业大学 | Stress-gradient-based method for dividing coal impact ground pressure danger area |
| CN104712338A (en) * | 2015-01-15 | 2015-06-17 | 山东科技大学 | Thick seam fully-mechanized caving faces double-layer hard-and-thick strata advance presplitting method |
| CN105422173A (en) * | 2015-11-27 | 2016-03-23 | 中国矿业大学 | Control method for coal impact disasters in coal mining |
| CN107304677A (en) * | 2016-04-22 | 2017-10-31 | 黑龙江龙煤鹤岗矿业有限责任公司 | The regional prevention and controls of the bump of coal seam group mining |
| CN109519221A (en) * | 2018-10-29 | 2019-03-26 | 河南大有能源股份有限公司耿村煤矿 | A kind of bump danger zone seat earth is broken water-filling method |
| CN110630328A (en) * | 2019-08-19 | 2019-12-31 | 天地科技股份有限公司 | Method and system for measuring protective range of mining protective layer |
| CN110905508A (en) * | 2019-12-13 | 2020-03-24 | 山东科技大学 | Roadway anti-scour method for artificially manufacturing differential medium laminar flow |
| CN110905596A (en) * | 2019-12-13 | 2020-03-24 | 山东科技大学 | Hard roof type rock burst prevention and treatment method based on change of medium properties |
| CN112483089A (en) * | 2020-12-18 | 2021-03-12 | 山东科技大学 | One-movement multi-static protection method for working face lateral suspended roof type rock burst |
| CN113338933A (en) * | 2021-06-30 | 2021-09-03 | 山西海源阳光科技有限公司 | Mining method for extremely-close coal seam |
| CN113482718A (en) * | 2021-08-10 | 2021-10-08 | 中煤科工开采研究院有限公司 | Method for preventing rock burst through pressure relief arrangement of roadway group of coal seam panel |
| CN113719318A (en) * | 2021-08-25 | 2021-11-30 | 煤炭科学研究总院 | Roadway axial full-length impact risk evaluation and risk resolution method based on momentum principle |
| CN115059469A (en) * | 2022-07-13 | 2022-09-16 | 安徽理工大学 | Pre-pressure relief method for advanced large-diameter drilling of small coal pillar excavation roadway |
| CN115059469B (en) * | 2022-07-13 | 2024-06-21 | 安徽理工大学 | Advanced large-diameter drilling pre-pressure relief method for small coal pillar tunneling roadway |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936162A (en) * | 2010-04-16 | 2011-01-05 | 兖州煤业股份有限公司 | Method for preventing rock burst of bottom plate of layered tunnel in tectonic stress region of coal mine |
| CN102518436A (en) * | 2011-11-14 | 2012-06-27 | 山东科技大学 | Method for controlling tectonic rock burst in coal mine tunneling |
| CN102536240A (en) * | 2012-01-17 | 2012-07-04 | 河南省煤层气开发利用有限公司 | Method for preventing rock burst by adopting high-pressure fracturing |
| CN102562067A (en) * | 2012-01-17 | 2012-07-11 | 河南省煤层气开发利用有限公司 | Method for controlling rock burst by pulse fracturing |
| CN102678120A (en) * | 2012-05-18 | 2012-09-19 | 河南大有能源股份有限公司 | Method for releasing pressure and removing danger of rock burst |
| CN102777180A (en) * | 2012-07-26 | 2012-11-14 | 山东能源集团有限公司 | Method for actively and regionally preventing and controlling rock burst in coal mines |
| CN103174425A (en) * | 2013-02-26 | 2013-06-26 | 中国矿业大学(北京) | Method suitable for preventing rock burst of hard huge thick top plate |
| CN103410514A (en) * | 2013-07-31 | 2013-11-27 | 鞍钢集团矿业公司 | Pressure relief and coal extraction method for deeply-compressed ore body |
-
2014
- 2014-04-11 CN CN201410144452.7A patent/CN103939099B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936162A (en) * | 2010-04-16 | 2011-01-05 | 兖州煤业股份有限公司 | Method for preventing rock burst of bottom plate of layered tunnel in tectonic stress region of coal mine |
| CN102518436A (en) * | 2011-11-14 | 2012-06-27 | 山东科技大学 | Method for controlling tectonic rock burst in coal mine tunneling |
| CN102536240A (en) * | 2012-01-17 | 2012-07-04 | 河南省煤层气开发利用有限公司 | Method for preventing rock burst by adopting high-pressure fracturing |
| CN102562067A (en) * | 2012-01-17 | 2012-07-11 | 河南省煤层气开发利用有限公司 | Method for controlling rock burst by pulse fracturing |
| CN102678120A (en) * | 2012-05-18 | 2012-09-19 | 河南大有能源股份有限公司 | Method for releasing pressure and removing danger of rock burst |
| CN102777180A (en) * | 2012-07-26 | 2012-11-14 | 山东能源集团有限公司 | Method for actively and regionally preventing and controlling rock burst in coal mines |
| CN103174425A (en) * | 2013-02-26 | 2013-06-26 | 中国矿业大学(北京) | Method suitable for preventing rock burst of hard huge thick top plate |
| CN103410514A (en) * | 2013-07-31 | 2013-11-27 | 鞍钢集团矿业公司 | Pressure relief and coal extraction method for deeply-compressed ore body |
Non-Patent Citations (1)
| Title |
|---|
| 曹承平: "近距离上保护层开采的实践", 《煤炭科学技术》 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653226A (en) * | 2014-12-26 | 2015-05-27 | 中国矿业大学 | Stress-gradient-based method for dividing coal impact ground pressure danger area |
| CN104712338A (en) * | 2015-01-15 | 2015-06-17 | 山东科技大学 | Thick seam fully-mechanized caving faces double-layer hard-and-thick strata advance presplitting method |
| CN105422173A (en) * | 2015-11-27 | 2016-03-23 | 中国矿业大学 | Control method for coal impact disasters in coal mining |
| CN105422173B (en) * | 2015-11-27 | 2017-12-22 | 中国矿业大学 | The prevention and controls of coal body impact disaster in a kind of coal mining |
| CN107304677A (en) * | 2016-04-22 | 2017-10-31 | 黑龙江龙煤鹤岗矿业有限责任公司 | The regional prevention and controls of the bump of coal seam group mining |
| CN109519221A (en) * | 2018-10-29 | 2019-03-26 | 河南大有能源股份有限公司耿村煤矿 | A kind of bump danger zone seat earth is broken water-filling method |
| CN109519221B (en) * | 2018-10-29 | 2020-06-05 | 河南大有能源股份有限公司耿村煤矿 | Water injection method for coal seam floor fracture in rock burst dangerous area |
| CN110630328A (en) * | 2019-08-19 | 2019-12-31 | 天地科技股份有限公司 | Method and system for measuring protective range of mining protective layer |
| CN110905596A (en) * | 2019-12-13 | 2020-03-24 | 山东科技大学 | Hard roof type rock burst prevention and treatment method based on change of medium properties |
| CN110905508A (en) * | 2019-12-13 | 2020-03-24 | 山东科技大学 | Roadway anti-scour method for artificially manufacturing differential medium laminar flow |
| CN112483089A (en) * | 2020-12-18 | 2021-03-12 | 山东科技大学 | One-movement multi-static protection method for working face lateral suspended roof type rock burst |
| CN113338933A (en) * | 2021-06-30 | 2021-09-03 | 山西海源阳光科技有限公司 | Mining method for extremely-close coal seam |
| CN113482718A (en) * | 2021-08-10 | 2021-10-08 | 中煤科工开采研究院有限公司 | Method for preventing rock burst through pressure relief arrangement of roadway group of coal seam panel |
| CN113482718B (en) * | 2021-08-10 | 2024-05-31 | 中煤科工开采研究院有限公司 | Method for preventing rock burst through pressure relief arrangement of coal seam disc zone roadway group |
| CN113719318A (en) * | 2021-08-25 | 2021-11-30 | 煤炭科学研究总院 | Roadway axial full-length impact risk evaluation and risk resolution method based on momentum principle |
| CN115059469A (en) * | 2022-07-13 | 2022-09-16 | 安徽理工大学 | Pre-pressure relief method for advanced large-diameter drilling of small coal pillar excavation roadway |
| CN115059469B (en) * | 2022-07-13 | 2024-06-21 | 安徽理工大学 | Advanced large-diameter drilling pre-pressure relief method for small coal pillar tunneling roadway |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103939099B (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103939099B (en) | The prevention and controls of the dangerous coal seam group bump of a kind of thump | |
| Huang et al. | Cavability control by hydraulic fracturing for top coal caving in hard thick coal seams | |
| CN109611143B (en) | Roof hydraulic fracturing multi-parameter comprehensive monitoring system and fracturing effect judging method | |
| CN101915083B (en) | Method for extracting coalbed gases from coal mines by upper and lower combination | |
| CN102619552B (en) | Directional hydraulic pressing penetration, permeability increase and outburst elimination method of guide groove | |
| CN102678120B (en) | Method for releasing pressure and removing danger of rock burst | |
| CN209761499U (en) | Roof hydraulic fracturing multi-parameter comprehensive monitoring system | |
| CN109736805A (en) | A kind of method of the modified release watershed management bump of thick-layer tight roof | |
| Liang et al. | Fracture evolution and pressure relief gas drainage from distant protected coal seams under an extremely thick key stratum | |
| WO2023273091A1 (en) | Method for preventing and controlling rock bursts in development roadway group | |
| CN112593936B (en) | Advanced comprehensive control method for multi-disaster area of deep mine | |
| CN103498680B (en) | Improve the method for fully mechanized coal face period of beginning mining top-coal recovery rate | |
| CN102518471A (en) | Rock burst energy releasing method of roadway of high stress area in coal mine | |
| CN104100266A (en) | Method for preventing gob-side roadway rock burst | |
| CN102425418A (en) | Method for controlling rock burst in artificial defect body of coal mine structural area | |
| CN110067592B (en) | Roof gas cooperative control method based on hard roof ground fracturing | |
| CN107304676A (en) | A kind of prevention and controls for leaving bump under coal column | |
| CN103161493A (en) | Gas-liquid-solid three-phase coupling blasting weakening rock burst and permeability increasing method | |
| CN102383728A (en) | Coal mine rockburst defect segmentation and control method | |
| CN102777180A (en) | Method for actively and regionally preventing and controlling rock burst in coal mines | |
| CN103411493A (en) | Drilling and powder charging method for goaf-penetrating deep hole presplitting blasting | |
| CN109915143A (en) | The control method of not wide protection pillar working face bump | |
| CN110005431A (en) | A kind of irregular gob-surrounded pillar working face Controlling of Coal Outburst method | |
| CN109915141A (en) | The control method of not wide protection pillar mining roadway bump | |
| CN104847401A (en) | Regional coal and gas outburst coal seam coal face outburst preventing and controlling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20190411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |