高应力矿山锚网支护巷道围岩变形监测与分析.pdf

2014年1月上 施工技术 第43卷第1期 CONSTRUCTION TECHNOLOGY 109 D0I:10.7672/sgj82014010109 高应力矿山锚网支护巷道围岩变形监测与分析* 卢洋龙，刘佳朋2，马丁 (1.西南科技大学环境与资源学院，四川绵阳621010； 2.葛洲坝易普力股份有限公司西昌分公司，四川西昌615000) [摘要]针对大顶山矿区巷道水平应力较大以及错喷支护难以满足生产及安全要求等问题，采用无喷混凝土铺 杆TECCO网支护方法取代原锚喷支护，在解决支护难题的同时，也节约了成本.为了验证铺网支护效果，对铺网 支护巷道围岩的表面位移进行监测，并通过对监测所搜集到的数据进行拟合分析，及时掌握围岩变形变化动态，以 便更好地对围岩稳定性作出预测和评价，确保巷道安全可靠，指导矿山安全生产. [关键词]矿山；高应力；支护；围岩；变形；监测 [中图分类号]TU454 [文献标识码]A [文章编号]1002-8498(2014)01-0109-05 Monitoring Analysis on the Deformation of Surrounding Rock of High Stress Tunnel Supported by Bolts and Nets Lu Yanglong' Liu Jiapeng Ma Ding' (1.School of Environment and Resource Southwest University of Science and Technology Mianyang Sichuan 621010 China; 2.Xichang Branch Explosive Gezhouba Co.Ltd.Xichang Sichuan 615000 China) Abstract:According to the questions in the Dadingshan mine that horizontal stress in tunnel is large and the method of bolt and spray concrete supporting can't meet the requirement of production and safety. The authors used supporting method without spraying concrete instead of former one to solve the problems and reduce the cost.In order to verify the functions of supporting it's necessary to monitor the surface displacement of surrounding rock in tunnel supports.Authors analyze the data to know the dynamic deformation of surrounding rock in time in order to make a better prediction and evaluation of surrounding rock stability to ensure tunnel safe and reliable and guide a safe production. Key words:mines;high stress;...