回采巷道帮部锚杆锚固时效性与杆体回收技术  

Time-dependent behavior of bolt anchoring and its recovery technology in sidewall anchor along mining roadway

作　　者：李亮[1,2] 黄克军[1,2] 刘文静[2] 张元振[2] 乔懿麟 

机构地区：[1]西安科技大学,陕西西安710045 [2]陕西煤业化工技术研究院有限责任公司,陕西西安710065

出　　处：《煤炭工程》2017年第2期59-61,共3页Coal Engineering

摘　　要：为解决长壁工作面前方煤帮遗留金属锚杆杆体带来的安全隐患,基于回采巷道帮部锚杆锚固时效性与围岩稳定性分析判据,结合FLAC3D数值计算,确定了长壁工作面前方煤壁帮锚杆合理回收范围,设计开发了以组合式中空螺旋钻为主体的锚杆杆体回收机具,建立了一套完整的长壁工作面前方锚杆杆体回收技术措施。通过现场试验,验证了回收方案的可行性和实用性。To eliminate the security risks from metal bolt-rod legacy in front of the long-wall working face, on the basis of time-dependent behavior of bolt anchoring and stability criterion of surrounding rock and numerical calculation, the reasonable recovery range was optimized for the bolt in front of long-wall working face and a recovery equipment of bolt was developed using combined hallow auger drill as main body. A complete set of recovery technical measures in front of the long-wall working face was established. According to f/led test, the recovery schemes were feasible and practical.

关 键 词：回采巷道 锚杆 锚固时效性 锚杆杆体回收 回收机具 

分 类 号：TD353.6[矿业工程—矿井建设]