采矿与安全工程学报Issue(3)：518-522,5.DOI:10.13545/j.cnki.jmse.2015.03.027
王洼煤矿软岩巷道变形破坏及支护对策
Deformation and fracture and its supporting measures in soft rock roadway in Wangwa coal mine
摘要
Abstract
In order to effectively control the deformation and failure of soft rock entry, rock structure and physical mechanics parameters and ingredient and field monitoring have been used in 1522-1 mining entry. Experiments indicate that the roof and floor belong to swelling soft rock and that the fractures in coal are well generated. Thus the reliability of the end bolt and bolt strength is depressed and difficult to form stability and effective load bearing structure. The support way can’t make rock-mass stress ba-lanced, with the deformation of roof-floor and sides big and floor protrude serious. It can’t meet the re-quirement of deformation character of surrounding rock in the soft rock roadway. Based on experiments and field monitoring, the cause of deformation and failure of weakness rock mining roadway is obtained. The full length anchoring bolt and net support and reasonable parameter are put forward, which achieves good application effect.关键词
软岩/围岩特征/破坏机理/影响因素/回采巷道/锚网支护Key words
soft rock/rock-mass characteristics/destruction mechanism/influencing factor/mining entry/bolt net support分类
矿业与冶金引用本文复制引用
张杰,杨涛,王斌,肖琦,刘东..王洼煤矿软岩巷道变形破坏及支护对策[J].采矿与安全工程学报,2015,(3):518-522,5.基金项目
国家自然科学基金项目(51474173，51204133)；陕西省教育厅重点实验室科研计划项目(13JS065) （51474173，51204133）
