重庆大学学报2017，Vol.40Issue(2)：16-25,10.DOI:10.11835/j.issn.1000-582X.2017.01.003
深部大跨度切眼顶板分区控制技术
Hierarchical control technology for large-span set-up room roof in deep
摘要
Abstract
The large-span set-up room roof in deep usually has poor self-stability,acute deformation and supporting difficulties.We took the set-up room support of 1105 large-mining-height panel in Zhaogu No.2 mine as research background,analyzed the roof failure mechanism and the key of roof control in different layers through field research,theoretical analysis and roof detection,put forward a hierarchical control technology dominated by lengthened bolt support,and stated the hierarchical control principle.According to this principle,the second tunneling supporting design of 1105 set-up room in Zhaogu No.2 mine was made,and the roof convergence as well as the roof fall and failure were monitored.The results indicate that the “anchor roof beam”,which is collectively formed by lengthened bolt and middle layer roof,shows good stability.And roof of every layer is controlled effectively,which well ensures the safety of set-up room roof and normal service.关键词
大跨度切眼/冒顶/分区控制/接长锚杆Key words
large-span set-up room/roof caving/hierarchical control/lengthen bolt分类
矿业与冶金引用本文复制引用
贾后省,李国盛,张辉,江文渊..深部大跨度切眼顶板分区控制技术[J].重庆大学学报,2017,40(2):16-25,10.基金项目
国家自然科学基金资助项目（51604094）；河南省教育厅高等学校重点科研项目资助（16A440006）。Supported by National Natural Science Foundation of China （51604094）and Higher Education Important Research Projects of Henan Provincial Education Department（16A440006）． （）
