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GB/T 25217.10-2019 PDF English

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GB/T 25217.10-2019: Methods for test, monitoring and prevention of rock burst -- Part 10: Prevention method of drill-hole destressing on coal-seam
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GB/T 25217.10-2019199 Add to Cart 3 days Methods for test, monitoring and prevention of rock burst -- Part 10: Prevention method of drill-hole destressing on coal-seam Valid

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GB/T 25217.10-2019: Methods for test, monitoring and prevention of rock burst -- Part 10: Prevention method of drill-hole destressing on coal-seam


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Methods for test, monitoring and prevention of rock burst - Part 10. Prevention method of drillhole destressing on coal-seam ICS 73.040 D20 National Standards of People's Republic of China Impact ground pressure measurement, monitoring and prevention methods Part 10. Coal seam drilling pressure relief method Methodsfortest, monitoringandpreventionofrockburst- Part 10.Preventionmethodofdrilholedestressingoncoal-seam Published on.2019-08-30 2020-03-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

GB/T 25217 "Method for measuring, monitoring and controlling impact ground pressure" is divided into 14 parts. --- Part 1. Determination of impact tendency classification and index of roof rock formation; --- Part 2. Determination of the impact tendency of coal and the method of determining the index; --- Part 3. Determination of the impact tendency classification and index of coal and rock composite test pieces; --- Part 4. Microseismic monitoring methods; --- Part 5. Geophone monitoring methods; ---Part 6. Drill cuttings monitoring method; ---Part 7. Mining stress monitoring method; --- Part 8. Electromagnetic radiation monitoring methods; ---Part 9. Coal seam water injection prevention methods; --- Part 10. Coal seam drilling pressure relief method; --- Part 11. Coal seam pressure relief blasting prevention methods; --- Part 12. Prevention and control methods for mining protective layers; --- Part 13. Prevention and treatment of roof deep hole blasting; --- Part 14. Roof hydraulic pressure cracking prevention methods. This part is the 10th part of GB/T 25217. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed and managed by the China Coal Industry Association. This section drafted by. Liaoning University of Engineering and Technology, Coal Science and Technology Research Institute Co., Ltd., China University of Mining and Technology, Liaoning University, China North Institute of Science and Technology, Tiandi Technology Co., Ltd. The main drafters of this section. Pan Yishan, Qi Qingxin, Li Zhonghua, Tang Jupeng, Dou Linming, Liu Jinhai, Pan Junfeng, Zhao Shankun, Zhang Guanghui, Liu Shaohong. Impact ground pressure measurement, monitoring and prevention methods Part 10. Coal seam drilling pressure relief method

1 Scope

This part of GB/T 25217 specifies the terms and definitions of the method for controlling the impact pressure of coal seam borehole pressure relief, pressure relief drilling Reconcile the area, depth, diameter, spacing, layout and effect evaluation of dangerous drilling. This section is applicable to the use of drilling and pressure relief methods in coal seams to prevent impact ground pressure.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 16414 Coal Mine Science and Technology Terms Rock Mechanics

3 Terms and definitions

The following terms and definitions as defined in GB/T 16414 apply to this document. 3.1 Impact danger zone riskzonesofrockburst The impact risk assessment in coal seams has an impact hazard, or on-site monitoring and analysis has an impact hazard, or an area where impacts are observed on site. 3.2 Drilling pressure relief drilholedestressing A method of local control of impact ground pressure in construction of boreholes in coal seam impact danger zones to reduce the stress concentration of coal bodies. 3.3 Pressure relief drilling destressingdrilhole Drilling holes in areas where impact hazards are assessed in coal seams. 3.4 Dangerous drilling dangerreliefdrilhole On-site monitoring and analysis of impact hazards, or on-site observation of drilling in areas where impacts are visible.

4 coal seam pressure relief drilling

4.1 Pressure relief drilling area The pressure relief drilling construction area is a weak impact danger zone, a medium impact danger zone, and a strong impact danger zone determined by impact risk assessment. The pressure relief drilling areas of the mining face and the coal roadway face are. a) The pressure relief drilling area of the working face should cover the mining area affected by the working face, and not less than.200m, two lanes in front of the working face get on; b) The coal roadway heading face should be covered by the unloading and drilling area, which should be no less than 20m ahead of the heading, and two roads in the roadway and roadway GB/T 25217.10-2019 Methods for test, monitoring and prevention of rock burst - Part 10. Prevention method of drillhole destressing on coal-seam ICS 73.040 D20 National Standards of People's Republic of China Impact ground pressure measurement, monitoring and prevention methods Part 10. Coal seam drilling pressure relief method Methodsfortest, monitoringandpreventionofrockburst- Part 10.Preventionmethodofdrilholedestressingoncoal-seam Published on.2019-08-30 2020-03-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

GB/T 25217 "Method for measuring, monitoring and controlling impact ground pressure" is divided into 14 parts. --- Part 1. Determination of impact tendency classification and index of roof rock formation; --- Part 2. Determination of the impact tendency of coal and the method of determining the index; --- Part 3. Determination of the impact tendency classification and index of coal and rock composite test pieces; --- Part 4. Microseismic monitoring methods; --- Part 5. Geophone monitoring methods; ---Part 6. Drill cuttings monitoring method; ---Part 7. Mining stress monitoring method; --- Part 8. Electromagnetic radiation monitoring methods; ---Part 9. Coal seam water injection prevention methods; --- Part 10. Coal seam drilling pressure relief method; --- Part 11. Coal seam pressure relief blasting prevention methods; --- Part 12. Prevention and control methods for mining protective layers; --- Part 13. Prevention and treatment of roof deep hole blasting; --- Part 14. Roof hydraulic pressure cracking prevention methods. This part is the 10th part of GB/T 25217. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed and managed by the China Coal Industry Association. This section drafted by. Liaoning University of Engineering and Technology, Coal Science and Technology Research Institute Co., Ltd., China University of Mining and Technology, Liaoning University, China North Institute of Science and Technology, Tiandi Technology Co., Ltd. The main drafters of this section. Pan Yishan, Qi Qingxin, Li Zhonghua, Tang Jupeng, Dou Linming, Liu Jinhai, Pan Junfeng, Zhao Shankun, Zhang Guanghui, Liu Shaohong. Impact ground pressure measurement, monitoring and prevention methods Part 10. Coal seam drilling pressure relief method

1 Scope

This part of GB/T 25217 specifies the terms and definitions of the method for controlling the impact pressure of coal seam borehole pressure relief, pressure relief drilling Reconcile the area, depth, diameter, spacing, layout and effect evaluation of dangerous drilling. This section is applicable to the use of drilling and pressure relief methods in coal seams to prevent impact ground pressure.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 16414 Coal Mine Science and Technology Terms Rock Mechanics

3 Terms and definitions

The following terms and definitions as defined in GB/T 16414 apply to this document. 3.1 Impact danger zone riskzonesofrockburst The impact risk assessment in coal seams has an impact hazard, or on-site monitoring and analysis has an impact hazard, or an area where impacts are observed on site. 3.2 Drilling pressure relief drilholedestressing A method of local control of impact ground pressure in construction of boreholes in coal seam impact danger zones to reduce the stress concentration of coal bodies. 3.3 Pressure relief drilling destressingdrilhole Drilling holes in areas where impact hazards are assessed in coal seams. 3.4 Dangerous drilling dangerreliefdrilhole On-site monitoring and analysis of impact hazards, or on-site observation of drilling in areas where impacts are visible.

4 coal seam pressure relief drilling

4.1 Pressure relief drilling area The pressure relief drilling construction area is a weak impact danger zone, a medium impact danger zone, and a strong impact danger zone determined by impact risk assessment. The pressure relief drilling areas of the mining face and the coal roadway face are. a) The pressure relief drilling area of the working face should cover the mining area affected by the working face, and not less than.200m, two lanes in front of the working face get on; b) The coal roadway heading face should be covered by the unloading and drilling area, which should be no less than 20m ahead of the heading, and two roads in the roadway and roadway ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.

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