煤矿安全2019，Vol.50Issue(10)：98-102,5.DOI:10.13347/j.cnki.mkaq.2019.10.022
超前支承压力作用下的巷道围岩控制技术
Surrounding Rock Control Technology of Roadway Under Advanced Abutment Pressure
摘要
Abstract
To solve the problem of severe deformation of roadway under the influence of advanced abutment pressure in the eastern IV district of Lucun Coal Mine, this paper uses the methods of theoretical calculation, borehole peep, numerical simulation and in-situ observation of roadway deformation to determine the range of surrounding rock loose range, and optimizes the original roadway support mode. It is concluded that the loose range of surrounding rock is 2.12 m under the action of advanced abutment pressure. Based on this, the optimized support scheme of "bolt-mesh-anchor + steel belt"can effectively control the deformation of surrounding rock of roadway and meet the needs of field production. Engineering practice has proved that the combination of various research methods can more accurately locate and grasp the actual production conditions on site, and can propose more effective roadway support scheme to ensure safety production on site and save the production cost of support.关键词
超前支承压力/钻孔窥视/松动圈/优化设计/数值模拟Key words
advance abutment pressure/borehole peep/loose circle/optimization design/numerical simulation分类
矿业与冶金引用本文复制引用
李敬凯,李青海,瞿衡哲,王鹤,崔亮..超前支承压力作用下的巷道围岩控制技术[J].煤矿安全,2019,50(10):98-102,5.基金项目
国家自然科学基金资助项目(51604164) （51604164）
山东省高等学校科技计划资助项目(J18KA185) （J18KA185）
