摘要
为准确探测出采煤工作面回采结束后,上覆岩层导水裂隙带发育高度范围,确保水体下采煤安全可靠,采用传统经验公式、井下封堵钻孔分段注(放)液裂隙测量系统及钻孔电视探测系统分别对工作面回采前后上覆岩层裂隙带的发育高度进行理论计算、定量探测和定性分析。结果表明:采用上述3种方法分别得到的导水裂隙带的发育高度范围为25.24~36.50,26.83~28.33和25.50~29.20 m。研究结果证实采用井下封堵钻孔分段注(放)液裂隙测量系统探测所得的导水裂隙带高度合理可靠,不仅为四台煤矿水下开采提供理论支撑,而且为其它矿井导水裂隙带探测提供借鉴和参考。
In order to accurately detect the height of water flowing fractured zone in overlying roof strata after the mining face has been mined and ensure that mining underwater is safe and reliable,empirical formula calculation, downhole plugging drilling section water injection(put) crack measurement system and drilling television detecting system are used to detect the development of water flowing fractured zone. Results show that,using the above three methods respectively,the heights of water flowing fractured zone,which are 25.24–36.50,26.83–28.33 and 25.50–29.20 m,are obtained. The results verify that using downhole plugging drilling section water injection(put) crack measurement system to detect the height of water flowing fractured zone is reasonable and reliable,and it not only provides a theoretical support for Sitai coal mining underwater,but also provides reference for other coals to detect water flowing fractured zone.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2014年第S1期3384-3390,共7页
Chinese Journal of Rock Mechanics and Engineering
基金
河南省瓦斯地质与瓦斯治理重点实验室–省部共建国家重点实验室培育基地资助项目(WS2012B06)
国家自然科学基金委员会–河南省人民政府人才培养联合基金资助项目(U1304502)
河南理工大学博士基金资助项目(B2011–011)
关键词
采矿工程
覆岩三带
导水裂隙带
水下采煤
注水漏失量
钻孔电视
mining engineering
three zones of overburden strata
water flowing fractured zone
underwater mining
injection water leakage
boreholes television
