采矿与安全工程学报2016，Vol.33Issue(2)：231-237,7.DOI:10.13545/j.cnki.jmse.2016.02.007
深井断层破碎带穿层软岩巷道锚网索耦合控制对策
Coupled bolt-mesh-anchor supporting technology for deep fault fracture zones throughout layers soft rock roadway
摘要
Abstract
The mining depth is around 1 000 m in Qishan Mine. With the increase of mining depth, roadway has failure phenomenon including top, side, and floor heave, as well as other large deformation, with a maximum roof and side failure more than 1 100 mm, under the influence of high ground stress, especially horizontal tectonic stress and fault cutting conditions. The existing support can barely control the stability of surrounding rock of roadway, which has seriously affected and restricted the safety pro-duction. This paper has presented detailed analysis of the characteristics and controlling factors of roadway failures, based on the supporting project in Qishan soft rock roadway, and has put forward the failure mechanics mechanism of high stress soft rock roadway expansion, and developed the coupled bolt + mesh + anchor supporting measures to realize coupled supports with strength, stiffness and the structure, so as to achieve the stability control in deep soft rock roadway excavation. The effects of this coupling support have already been validated by the results of field monitoring.关键词
高应力/复合型软岩/断层破碎带/穿层巷道/耦合支护Key words
high stress/composite soft rock/fault fracture zones/throughout layers roadway/coupling support分类
矿业与冶金引用本文复制引用
郝育喜,王炯,王浩,孟志刚,郭志飚..深井断层破碎带穿层软岩巷道锚网索耦合控制对策[J].采矿与安全工程学报,2016,33(2):231-237,7.基金项目
国家自然科学基金项目(51374214)；国家自然科学基金青年科学基金项目(51404278) （51374214）
