摘要
为解决泄水巷支护的问题,提出采用预应力耦合让压支护体系的方案。通过锚杆让压性能试验、锚杆拉拔现场试验,确定本方案有效控制大采深动压巷道变形量;通过观测分析,证明该支护体系能够有效控制动压巷道变形。
In order to solve the problem of support of water drainage tunnel, a scheme of high-strength prestressing pressure balance supporting system was put forward. Through the bolt pressure-letting test,anchor pull-out field test and application effect observation, the effective control the deformation and support effect of the roadway with deep mining and dynamic pressure are remarkable.
出处
《煤炭技术》
北大核心
2017年第7期1-3,共3页
Coal Technology
关键词
沿空掘巷
超前掘进
平衡支护
driving along next goaf
advance driving
balanced support
