摘要
针对寺河煤矿二号井15号煤层巷道维护困难的现状,对巷道围岩结构进行了观测分析,并对巷道围岩强度进行了测试,测试结果显示,15号煤层顶板为巨厚坚硬石灰岩,且完整性好;煤体松散破碎。在此基础上分别提出了顶板和两帮加固的支护方案,经过现场工业性试验,有效控制了巷道的变形与破坏,对类似条件下巷道围岩控制具有一定的借鉴意义。
Maintenance for the No. 15 coal seam roadway of No. 2 shaft difficult situation in Sihe Coal Mine,the structure of the roadway were observed analyzed,and the strength of the roadway surrounding rock were tested,the test structure showed that No. 15 coal seam roof as thick hard limestone,integrity and good;broken loose coal. On this basis,the roof and the two flank hole reinforce the support program are each proposed,through field of industrial test,effective control of the deformation and failure of roadway,with some reference to the control of roadway surrounding rock under similar conditions.
出处
《煤》
2015年第3期14-15,34,共3页
Coal
基金
国家自然科学基金资助项目(51304065)
关键词
软岩巷道
钻孔窥视
注浆加固
围岩控制
soft rock roadway
surrounding rock
grouting reinforcement
drilling peep control
