摘要
为解放龙固煤矿21煤深部资源,延长矿井寿命,根据奥陶系顶部存在隔水层的理论,分析现有水文地质资料,证实了龙固煤矿奥陶系灰岩顶部存在隔水层并得出其厚度,并对本溪组14灰及15灰富水性及其对回采过程中突水的威险性进行分析。结果认为预防重点是底板中的陷落柱和底板等构造,并最终确定了注浆加固方案。
To mine deep resource of No. 21 coal in Longgu Mine,and prolong the service life of mine,based on the water- resisting layer theory and hydrogeological data,it confirmed that there is water- resisting layer at the top of Ordovician limestone in Longgu Mine,and its thickness has been worked out. Besides,water- abundance characteristic of No. 14 and No. 15 limestone in Benxi Formation and its risk of water inrush is analyzed. The results show that more attention should be paid to collapse columns and faults,and the grouting reinforcement scheme is determined finally.
出处
《煤矿安全》
CAS
北大核心
2015年第7期169-171,共3页
Safety in Coal Mines
基金
国家自然科学基金资助项目(50974115)
国家重点基础研究发展计划(973计划)资助项目(2013CB227900)
关键词
奥陶系灰岩
隔水层
防治水
注浆加固
底板注浆
构造区
ordovician limestone
water-resisting layer
water control
grouting reinforcement
floor grouting
tectonic area
