CN108871641A - The prediction technique of bump risk in a kind of exploitation of coal mine underground - Google Patents
The prediction technique of bump risk in a kind of exploitation of coal mine underground Download PDFInfo
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- CN108871641A CN108871641A CN201810717583.8A CN201810717583A CN108871641A CN 108871641 A CN108871641 A CN 108871641A CN 201810717583 A CN201810717583 A CN 201810717583A CN 108871641 A CN108871641 A CN 108871641A
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- drilling
- bump
- plastic zone
- guide
- analysis
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- 239000003245 coal Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005553 drilling Methods 0.000 claims abstract description 44
- 239000011435 rock Substances 0.000 claims abstract description 24
- 238000004458 analytical method Methods 0.000 claims abstract description 15
- 238000005065 mining Methods 0.000 claims abstract description 12
- 230000006378 damage Effects 0.000 claims abstract description 7
- 230000000877 morphologic effect Effects 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000003449 preventive effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0052—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to impact
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention provides the prediction technique of bump risk in a kind of exploitation of coal mine underground, is related to coal mining technology field.This method includes guide's drilling, the analysis of plastic zone damage -form and Prediction of Rock Burst and classification.The present invention is first in front of roadway head or two help to carry out guide's drilling in coal and rock, it can determine the corresponding bump grade of corresponding roadway surrounding rock by the different plasticity area form of analysis guide's drilling, to which accurate and timely discovery bump is dangerous, convenient for taking preventive measures, the generation of accident is prevented, ensures the normal production operation of the security of the lives and property and mine.
Description
Technical field
The present invention relates to bump risk in coal mining technology field more particularly to a kind of exploitation of coal mine underground
Prediction technique.
Background technique
Coal industry is one of main source of China's energy and one of the mainstay of China's economy, with coal
The increase of charcoal resource exploitation depth and mining rate and the complexity of coal field geology condition, the Rock Burst in China are asked
Inscribe especially prominent, the dynamic disasters such as Rock Burst increasingly sharpen, seriously prestige rib the safety of coal mining.
Bump is also known as rock burst, refers to roadway or working face surrounding rock body, due to elastic deformation energy instantaneous relase and
Generate the dynamic phenomenon acutely destroyed suddenly, be often accompanied by coal and rock dish out, loud noise and phenomena such as blast.It has very big destruction
Property, it is one of coal mine disaster, the feature with sudden, instantaneous shock, considerable damage.If therefore can be promptly and accurately
Early warning is carried out to coal mine rock burst and takes corresponding counter-measure, to support personnel's security of the lives and property, ensures coal mine
Normal production has great meaning.
The prediction technique of bump mainly includes micro-seismic method, rock noise method etc. now.Existing prediction technique is for macro
Prediction on the whole is seen, the accurate determination to local country rock shock hazard is lacked；And its device therefor higher cost, maintenance
Difficulty, it is poor to underground harsh environment adaptability.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, provide in a kind of exploitation of coal mine underground
The prediction technique of bump risk effectively avoids the generation of accident, ensures the security of the lives and property in coal mine.
In order to solve the above technical problems, the technical solution adopted by the present invention is that：Impact ground in a kind of exploitation of coal mine underground
The prediction technique for pressing risk, includes the following steps：
The first step：Guide's drilling；
The coal and rock helped in the front of roadway head and two carries out guide's drilling, wherein the specific arrangement of drilling and
Drilling depth, should be by determining the comprehensive analysis of mining method, mining conditions and roadway surrounding rock lithology and field test；
Second step：Plastic failure area morphological analysis；
After drilling, the initial plastic area form before drilling disturbance is observed first；In the every driving one in tunnel
Section distance, all again observes the drilling plastic zone after being disturbed, until drilling is no longer within the scope of disturbing influence；
In this process, the plastic zone form process different to disturbance front and back is analyzed, by analysis by hole plastic zone boundary
Form division is four classes：Round, ellipse, small butterfly, big butterfly；
Third step：Determine bump Hazard rank；
The i.e. corresponding roadway surrounding rock bump Hazard rank of the different boundary morphological feature of the plastic zone of guide's drilling, such as
Shown in table 1, by carrying out corresponding bump risk of analysis judgement etc. in the different plastic zone form in disturbance front and back
Grade；
Table 1
| Guide's drilling plastic zone form | Bump Hazard rank |
| It is round | Without danger of burst |
| Ellipse | Without danger of burst |
| Small butterfly | Weak danger of burst |
| Big butterfly | Thump is dangerous |
The hole plastic zone border motif of the drilling determines that method is：After drilling, using pry through observation method or
Person's injection molding determines hole damage -form.
Generated beneficial effect is by adopting the above technical scheme：Impact ground in coal mine underground exploitation provided by the invention
The prediction technique of risk is pressed, feature is Mi-crocosmic forecast, can be analyzed specific to somewhere roadway surrounding rock；By using
Roadway's sides and the mode of front coal and rock guide drilling, carry out prediction classification to the bump in coal mine, can it is accurate and
When discovery bump it is dangerous, decrease or even eliminate casualties and property loss as far as possible, keep coal mining safer
Efficiently；The present invention is not related to sensor, therefore economic and practical, at low cost, and with strong points, and strong applicability is simple and reliable.
Detailed description of the invention
Fig. 1 is the prediction technique flow chart of bump risk in coal mine underground provided in an embodiment of the present invention exploitation；
Fig. 2 is guide's bore position schematic diagram provided in an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
As shown in Figure 1, in the present embodiment coal mine underground exploitation in bump risk prediction technique it is as described below.
The first step：Guide's drilling；
The coal and rock helped in the front of roadway head and two carries out guide's drilling, wherein the specific arrangement of drilling and
Drilling depth, should be by determining the comprehensive analysis of mining method, mining conditions and roadway surrounding rock lithology and field test；
Guide drills approximate location as shown in Fig. 2, specific drilling arrangement and drilling depth should be according to reality in the present embodiment
Situation determines.
Second step：Plastic failure area morphological analysis；
After drilling, the initial plastic area form before drilling disturbance is observed first；In the every driving one in tunnel
Section distance, all again observes the drilling plastic zone after being disturbed, until drilling is no longer within the scope of disturbing influence；
In this process, the plastic zone form process different to disturbance front and back is analyzed, by analysis by hole plastic zone boundary
Form division is four classes：Round, ellipse, small butterfly, big butterfly.
The hole plastic zone border motif of the drilling determines that method is：After drilling, using pry through observation method or
Person's injection molding determines hole damage -form.
Third step：Determine bump Hazard rank；
The i.e. corresponding roadway surrounding rock bump Hazard rank of the different boundary morphological feature of the plastic zone of guide's drilling, such as
Shown in table 2, by carrying out corresponding bump risk of analysis judgement etc. in the different plastic zone form in disturbance front and back
Grade.
Table 2
| Guide's drilling plastic zone form | Bump Hazard rank |
| It is round | Without danger of burst |
| Ellipse | Without danger of burst |
| Small butterfly | Weak danger of burst |
| Big butterfly | Thump is dangerous |
The basic principle of the present embodiment method is：Guide drill where coal and rock be roadway surrounding rock a part, two
The specific country rock form of person difference, but they all under identical ambient stress, physico-mechanical properties are also close, therefore
The plastic zone morphological feature of the two has similitude, and the plastic zone damage -form feature of guide's drilling and the bump in tunnel are endangered
Method dangerous that also there is high correlation, therefore that the plastic zone morphological feature of analysis guide's drilling can be used, to roadway surrounding rock
Bump Hazard rank is predicted.
The present embodiment is by using the mode in roadway's sides and front coal and rock guide drilling, to the impact in coal mine
Pressure carries out prediction classification, can discovery bump accurately and timely it is dangerous, convenient for taking preventive measures, prevent the hair of accident
It is raw, casualties and property loss are decreased or even eliminated as far as possible, ensure the normal production operation of the security of the lives and property and mine,
Keep coal mining more safe and efficient.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that：It still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, model defined by the claims in the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (1)
1. the prediction technique of bump risk in a kind of coal mine underground exploitation, it is characterised in that：Include the following steps：
The first step：Guide's drilling；
Guide's drilling is carried out in the coal and rock that the front of roadway head and two are helped, wherein the specific arrangement of drilling and drilling
Depth, should be by determining the comprehensive analysis of mining method, mining conditions and roadway surrounding rock lithology and field test；
Second step：Plastic failure area morphological analysis；
After drilling, the initial plastic area form before drilling disturbance is observed first；Tunnel it is every driving one section away from
From, all the drilling plastic zone after being disturbed is observed again, until drilling be no longer within the scope of disturbing influence；At this
During a, the plastic zone form process different to disturbance front and back is analyzed, by analysis by hole plastic zone border motif
It is divided into four classes：Round, ellipse, small butterfly, big butterfly；
Third step：Determine bump Hazard rank；
The i.e. corresponding roadway surrounding rock bump Hazard rank of the different boundary morphological feature of the plastic zone of guide's drilling, such as table 1
It is shown, by carrying out the corresponding bump Hazard rank of analysis judgement in the different plastic zone form in disturbance front and back；
Table 1
The hole plastic zone border motif to drill in the second step determines that method is：After drilling, observed using prying through
Method or injection molding determine hole damage -form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717583.8A CN108871641A (en) | 2018-07-03 | 2018-07-03 | The prediction technique of bump risk in a kind of exploitation of coal mine underground |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810717583.8A CN108871641A (en) | 2018-07-03 | 2018-07-03 | The prediction technique of bump risk in a kind of exploitation of coal mine underground |
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| Publication Number | Publication Date |
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| CN108871641A true CN108871641A (en) | 2018-11-23 |
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|---|---|---|---|
| CN201810717583.8A Pending CN108871641A (en) | 2018-07-03 | 2018-07-03 | The prediction technique of bump risk in a kind of exploitation of coal mine underground |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552740A (en) * | 2019-08-30 | 2019-12-10 | 北京科技大学 | local progressive focusing type detection early warning method for coal rock dynamic disaster dangerous area |
| CN111982377A (en) * | 2020-09-01 | 2020-11-24 | 中国地质科学院地质力学研究所 | Deep hole differential stress evaluation method based on secondary sleeve core |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434194A (en) * | 2011-09-30 | 2012-05-02 | 神华集团有限责任公司 | Gas drainage drill hole structure formed in coal layer and method for fabricating same |
| CN102587983A (en) * | 2012-01-12 | 2012-07-18 | 山东科技大学 | Comprehensive early-warning observation method for coal mine rock burst |
| WO2013143151A1 (en) * | 2012-03-31 | 2013-10-03 | 中国矿业大学(北京) | Experiment method for simulated impact-type rock burst |
| CN104655820A (en) * | 2014-09-11 | 2015-05-27 | 中铁十六局集团第五工程有限公司 | Judging, grading and processing method of rockburst of hard rocks for tunnel |
| CN106437702A (en) * | 2016-10-20 | 2017-02-22 | 山东科技大学 | Method for monitoring head-on impact ground pressure danger of soft coal seam roadway |
-
2018
- 2018-07-03 CN CN201810717583.8A patent/CN108871641A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434194A (en) * | 2011-09-30 | 2012-05-02 | 神华集团有限责任公司 | Gas drainage drill hole structure formed in coal layer and method for fabricating same |
| CN102587983A (en) * | 2012-01-12 | 2012-07-18 | 山东科技大学 | Comprehensive early-warning observation method for coal mine rock burst |
| WO2013143151A1 (en) * | 2012-03-31 | 2013-10-03 | 中国矿业大学(北京) | Experiment method for simulated impact-type rock burst |
| CN104655820A (en) * | 2014-09-11 | 2015-05-27 | 中铁十六局集团第五工程有限公司 | Judging, grading and processing method of rockburst of hard rocks for tunnel |
| CN106437702A (en) * | 2016-10-20 | 2017-02-22 | 山东科技大学 | Method for monitoring head-on impact ground pressure danger of soft coal seam roadway |
Non-Patent Citations (2)
| Title |
|---|
| 赵志强: "大变形回采巷道围岩变形破坏机理与控制方法研究", 《中国博士学位论文全文数据库 工程科技I辑》 * |
| 马念杰: "深部煤与瓦斯共采中的优质瓦斯通道及其构建方法", 《煤炭学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552740A (en) * | 2019-08-30 | 2019-12-10 | 北京科技大学 | local progressive focusing type detection early warning method for coal rock dynamic disaster dangerous area |
| CN111982377A (en) * | 2020-09-01 | 2020-11-24 | 中国地质科学院地质力学研究所 | Deep hole differential stress evaluation method based on secondary sleeve core |
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Application publication date: 20181123 |
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