深井高应力大断面煤巷过断层掘进支护技术研究  

Research on Support Technology of Driving Through Faults in High-stress Large Cross Section Coal Roadway of Deep Mine

作　　者：范仕清 柏发松[1] 李宏亮 Fan Shi-qing;Bai Fa-song;Li Hong-liang(Dingji Coal Mine,Huaihu Coal and Electricity Co.,Ltd.,Anhui Fengtai 232142)

机构地区：[1]淮沪煤电有限公司丁集煤矿,安徽凤台232142

出　　处：《山东煤炭科技》2019年第4期53-55,共3页Shandong Coal Science and Technology

摘　　要：针对深部高应力巷道过断层破碎带围岩控制困难的问题,以丁集矿东翼采区1521(3)轨顺过SF271断层异常带为工程背景,分析了断层构造带内裂隙发育、复合顶板泥化软化程度高、局部富水性强等支护难点,提出"预注浆+超前撞楔掩护架棚+二次补注浆"的联合支护方案。实践表明,该支护方案可有效提高断层破碎带内巷道围岩稳定性,确保巷道掘进安全。In view of the difficult control of the surrounding rock in the deep high-stress roadway through the fault fracture zone,the difficulties in supporting such as crack development in the fault zone,high-degree mud softening of composite roof and local rich water are analyzed by taking the 1521(3)track of east wing mining area of Dingji Mine passing along SF271 fault fracture zone that is abnormal as engineering background,and the combined support scheme of"pre-grouting+pre-wedge shelter shed+secondary grouting"is proposed.The practice shows that the support scheme can effectively improve the stability of roadway surrounding rock in fault fracture zone and ensures the safety of roadway driving.

关 键 词：大断面 破碎 注浆 支护 

分 类 号：TD353[矿业工程—矿井建设]