|本期目录/Table of Contents|

[1]李元林,刘勇,王沉,等.高瓦斯低透气性煤层深孔预裂爆破增透技术研究及应用*[J].中国安全生产科学技术,2020,16(9):71-76.[doi:10.11731/j.issn.1673-193x.2020.09.011]
　LI Yuanlin,LIU Yong,WANG Chen,et al.Research and application of deep hole presplitting blasting technology for permeability enhancement in high gas and low permeability coal seam[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(9):71-76.[doi:10.11731/j.issn.1673-193x.2020.09.011]
点击复制

高瓦斯低透气性煤层深孔预裂爆破增透技术研究及应用*
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年9期
页码:
71-76
栏目:
职业安全卫生管理与技术
出版日期:
2020-09-30

文章信息/Info

Title:
Research and application of deep hole presplitting blasting technology for permeability enhancement in high gas and low permeability coal seam
文章编号:
1673-193X(2020)-09-0071-06
作者:
李元林; 刘勇; 王沉; 王麒翔
（1.贵州大学 矿业学院，贵州 贵阳 550025；
2.贵州省复杂地质矿山开采安全技术工程中心，贵州 贵阳 550025；
3.中煤科工集团重庆研究院有限公司，重庆 400000）
Author(s):
LI Yuanlin;  LIU Yong;  WANG Chen;  WANG Qixiang
(1.Mining College,Guizhou University,Guiyang Guizhou 550025,China;
2.Guizhou Engineering Center for Safe Mining Technology Under Complex Geologic Condition,Guiyang Guizhou 550025,China;
3.China Coal Technology Engineering Group Chongqing Research Institute,Chongqing 400000,China)
关键词:
深孔预裂爆破; 低透气性煤层; 卸压增透; 瓦斯抽采
Keywords:
deep hole presplitting blasting;  low permeability coal seam;  pressure relief and permeability enhancement;  gas drainage
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2020.09.011
文献标志码:
A
摘要:
为解决高瓦斯矿井开采过程中煤体透气性差、瓦斯预抽周期长、抽采效果不佳的难题，提出利用深孔预裂爆破技术提高煤体裂隙发育度，增加煤体透气性，从而提高瓦斯抽采率的方法。通过现场调研、理论分析、数值模拟及工业性试验等方法，分析深孔预裂爆破卸压增透内在机理，确定爆破影响半径为4.5~5.3 m，并在A110605工作面进行现场应用，同时考察煤层增透效果。研究结果表明：煤层爆破致裂后，平均瓦斯抽采浓度提高了2.17倍，平均瓦斯抽采纯量提高了2.02倍，煤层透气性系数提高了近5.3倍，煤层卸压增透效果显著，很大程度上消除了煤与瓦斯突出危险性，为实现工作面的安全开采及正常接替提供了保障。
Abstract:
In order to solve the difficult problems of poor gas permeability in coal,long cycle of gas predrainage and poor drainage effect in the mining process of high gas mine,a method of using deep hole presplitting blasting technology to improve the development degree of coal fracture,increase the coal permeability and thus improve the gas drainage rate was proposed.Through the onsite investigation,theoretical analysis,numerical simulation and industrial test,the inherent mechanism of deep hole presplitting blasting for pressure relief and permeability enhancement was analyzed,and the blasting influence radius was determined to be 4.5~5.3 m.The onsite application was conducted in A110605 working face,and the permeability enhancement effect of coal seam was investigated.The results showed that after the blastinginduced fracturing of coal seam,the average gas drainage concentration increased by 2.17 times,the average gas drainage pure amount increased by 2.02 times,and the permeability coefficient of coal seam increased by nearly 5.3 times.The pressure relief and permeability enhancement effect of coal seam was significant,which eliminated the risk of coal and gas outburst to a great extent,and provided guarantee for the safe mining and normal replacement of the working face.

参考文献/References:

［1］刘健,刘泽功,高魁,等.深孔预裂爆破在深井高瓦斯低透气性煤层瓦斯抽采中的应用［J］.中国安全生产科学技术,2014,10(5):148-153. LIU Jian,LIU Zegong,GAO Kui,et al.Application of deep hole pre-splitting blasting to gas drainage at deep well and low permeability coal seam［J］.Journal of Safety Science and Technology,2014,10(5):148-153.
［2］吕进国,李守国,赵洪瑞,等.高地应力条件下高压空气爆破卸压增透技术实验研究［J］.煤炭学报,2019,44(4):1115-1128. LYU Jinguo,LI Shouguo,ZHAO Hongrui,et al.Technology of pressure relief and permeability enhancement with high pressure air blasting under high geo-stress ［J］.Journal of China Coal Society,2019,44(4):1115-1128.
［3］梁银权,王进尚,冯星宇.高瓦斯低透气性煤层深钻孔高压水力割缝增透技术［J］.煤炭工程,2019,51(6):99-102. LIANG Yinquan,WANG Jinshang,FENG Xingyu.Permeability-increasing technology of deep drilling supper-high pressure hydraulic cutting in high gas and low permeability coal seam［J］.Coal Engineering,2019,51(6):99-102.
［4］贾腾,黄长国,刘公君,等.不同孔间距抽采孔对深孔预裂爆破增透效果影响研究［J］.煤炭科学技术,2018,46(5):109-113. JIA Teng,HUANG Changguo,LIU Gongjun,et al.Study on gas drainage boreholes with different space distances between boreholes affected to pre-cracking blasting enhancement effect of deep boreholes［J］.Coal Science and Technology,2018,46(5):109-113.
［5］高鑫浩,王明玉.水力压裂-深孔预裂爆破复合增透技术研究［J/OL］.煤炭科学技术:1-8［2020-06-05］. GAO Xinhao,WANG Mingyu.Study on hydraulic fracturing-deep hole pre-splitting blasting composite permeability enhancement technology［J/OL］.Coal Science and Technology,1-8［2020-06-05］.
［6］弓美疆,池鹏,张明杰.低透气性高瓦斯煤层深孔控制预裂爆破增透技术［J］.煤炭科学技术,2012,40(10):69-72. GONG Meijiang,CHI Peng,ZHANG Mingjie.Permeability increase with deep borehole controlled pre-cracking blasting technology in low permeabity and high gassy seam［J］.Coal Science and Technology,2012,40(10):69-72.
［7］刘健,刘泽功,高魁,等.不同装药模式爆破载荷作用下煤层裂隙扩展特征试验研究［J］.岩石力学与工程学报,2016,35(4):735-742. LIU Jian,LIU Zegong,GAO Kui,et al.Experimental study of extension characters of cracks in coal seam under blastingload with different charging modes［J］.Chinese Journal of Rock Mechanics and Engineering,2016,35(4):735-742.
［8］姜二龙,刘健,蔡文鹏,等.深孔预裂爆破技术在低透气性回采工作面中的试验研究［J］.中国安全生产科学技术,2013,9(7):20-24. JIANG Erlong,LIU Jian,CAI Wenpeng,et al.Experiment study on deep hole pre-splitting blasting technology in low permeability outburst working face ［J］.Journal of Safety Science and Technology,2013,9(7):20-24.
［9］高新宇,刘健,张超,等.低透气煤层深孔预裂聚能爆破增透试验研究［J］.煤矿安全,2019,50(4):23-26,31. GAO Xinyu,LIU Jian,ZHANG Chao,et al.Experimental study on permeability improvement of deep hole pre-splitting cumulative blasting in low permeability coal seam［J］.Safety in Coal Mines,2019,50(4):23-26,31.
［10］粟爱国.低渗煤层预裂爆破裂纹扩展规律数值模拟［D］.阜新：辽宁工程技术大学,2013.
［11］刘健,刘泽功,石必明.低透气性突出煤层巷道快速掘进的试验研究［J］.煤炭学报,2007(8):827-831. LIU Jian,LIU Zegong,SHI Biming.Study on the roadway excavation rapidly in the low permeability outburst coal seam［J］.Journal of China Coal Society,2007(8):827-831.
［12］蔡峰,刘泽功,张朝举,等.高瓦斯低透气性煤层深孔预裂爆破增透数值模拟［J］.煤炭学报,2007(5):499-503. CAI Feng,LIU Zegong,ZHANG Chaoju,et al.Numerical simulation of improving permeability by deep-hole presplitting explosion in loose-soft andpermeabilitycoal seam ［J］.Journal of China Coal Society,2007(5):499-503.
［13］张旭进,张昌锁,宋水舟.基于LS-DYNA的聚能装药结构优势数值模拟［J］.矿业研究与开发,2019,39(6):136-140. ZHANG Xujin，ZHANG Changsuo，SONG Shuizhou.Numerical simulation on the advantages of shaped charges structure based on LS-DYNA［J］.Mining Research and Development,2019,39(6):136-140.
［14］郭林杰.顾南矿揭C13-1煤层深孔预裂爆破卸压增透技术研究［D］.淮南：安徽理工大学,2015.
［15］周世宁.瓦斯在煤层中流动的机理［J］.煤炭学报,1990(1):15-24. ZHOU Shining.The mechanism of gas flow in coal seam［J］.Journal of China Coal Society,1990(1):15-24.

相似文献/References:

[1]潘泱波,刘泽功.深孔预裂爆破弱化煤层夹矸技术的应用[J].中国安全生产科学技术,2013,9(9):107.[doi:10.11731/j.issn.1673-193x.2013.09.020]
　PAN Yang bo,LIU Ze gong.Application of deep hole presplit blasting technology in weakening of dirt band[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2013,9(9):107.[doi:10.11731/j.issn.1673-193x.2013.09.020]
[2]刘 健,刘泽功,高 魁,等.深孔预裂爆破在深井高瓦斯低透气性煤层瓦斯抽采中的应用[J].中国安全生产科学技术,2014,10(5):148.[doi:10.11731/j.issn.1673-193x.2014.05.024]
　LIU Jian,LIU Zegong,GAO Kui,et al.Application of deep hole pre-splitting blasting to gas drainage at deep well and low permeability coal seam[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(9):148.[doi:10.11731/j.issn.1673-193x.2014.05.024]
[3]李重情,盛恒,刘健.深孔预裂爆破对含坚硬顶板高瓦斯煤层的综合作用研究[J].中国安全生产科学技术,2015,11(1):71.[doi:10.11731/j.issn.1673-193x.2015.01.012]
　LI Zhong-qing,SHENG Heng,LIU Jian.Study on combined effect of deep hole pre-splitting blasting to high gas coal seam with hard roof[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(9):71.[doi:10.11731/j.issn.1673-193x.2015.01.012]
[4]赵红星,贾男.低透气性煤层点式酸化压裂增透技术研究与应用*[J].中国安全生产科学技术,2021,17(9):66.[doi:10.11731/j.issn.1673-193x.2021.09.010]
　ZHAO Hongxing,JIA Nan.Research and application of point acidizing fracturing permeability improvement technology in low permeability coal seam[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(9):66.[doi:10.11731/j.issn.1673-193x.2021.09.010]
[5]姜二龙,刘健,蔡文鹏,等.深孔预裂爆破技术在低透气性回采工作面中的试验研究[J].中国安全生产科学技术,2013,9(7):20.[doi:10.11731/j.issn.1673-193x.2013.07.003]
　JIANG Er long,LIU Jian,CAI Wen peng,et al.Experiment study on deep hole pre-splitting blasting technology in low permeability outburst working face[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2013,9(9):20.[doi:10.11731/j.issn.1673-193x.2013.07.003]

备注/Memo

备注/Memo:
收稿日期： 2020-07-22
* 基金项目： 国家自然科学基金项目(51904081, 51964008)；贵州省本科高校一流专业建设项目（SJZY2017006）；贵州省科技计划项目（黔科合平台人才〔2018〕5781号）
作者简介： 李元林，硕士研究生，主要研究方向为煤矿安全开采。
通信作者： 刘勇，博士，教授，主要研究方向为矿业系统工程。
更新日期/Last Update: 2020-10-08