基于采动裂隙演化分阶段-分层特性的抽采钻孔试验研究  

Study on Stratified Extraction Drilling Test Based on Dynamic Stratification Characteristic of Mining-induced Fractures

作　　者：李川田[1,2] 吴世跃[1] 李艳奎[1] 孙晓元[2] 谢建林[2] 白庆华 LI Chuan-tian;WU Shi-yue;LI Yan-kui;SUN Xiao-yuan;XIE Jian-lin;BAI Qing-hua(College of Mining Engineering,Taiyuan University of Technology,Taiyuan 030024,China;College of Environment and Safety,Taiyuan University of Science and Technology,Taiyuan 030024,China;Dayangquan Coal Limited Liability Company,Yangquan 045000,China)

机构地区：[1]太原理工大学矿业工程学院,太原030024 [2]太原科技大学环境与安全学院,太原030024 [3]大阳泉煤炭有限责任公司,山西阳泉045000

出　　处：《煤炭技术》2018年第10期202-204,共3页Coal Technology

基　　金：山西省科技攻关项目(20130322008-03);山西省重点研发计划项目(201603D121031);山西省科技重大专项资助项目(20121101001);太原科技大学校青年基金(20133003)

摘　　要：以大阳泉煤矿为工程背景进行试验检验,结果表明:与未实施分层钻孔抽采技术的2120工作面相比,2122工作面瓦斯抽采量明显增加了1.93 m3/min;风排瓦斯量降低了3.07 m3/min,回采期间没有发生瓦斯超限、断电现象;瓦斯抽采率增加了12.76%;实践证明该瓦斯抽采方案是合理、可行的,并可为邻近层瓦斯影响严重的矿井提供技术借鉴。The trial was carried out in the Dayangquan coal mine as the engineering background,the results showed that：compared with 2120 working face,without using the extraction technology of stratified drilling,the quantity of gas drainage increase the number of 1.93 m^3/min in 2122 panel;the ventilation gas content was reduced by 3.07 m^3/min,no gas transfinite or power failure occurred during the mining period;gas drainage rate increased by 12.76%;Practice has proved that this gas drainage scheme is reasonable and feasible,and can provide technical reference for mines with serious gas influence on adjacent layers.

关 键 词：采动裂隙 瓦斯涌出 分层抽采钻孔 采场空间 瓦斯抽采 

分 类 号：TD712[矿业工程—矿井通风与安全]