摘要
受新生、昌荣两煤矿开采影响,渝蓉高速公路巴岳山隧道部分路段出现裂缝及两帮掉块等现象。为掌握隧道受开采影响状况,文章基于概率积分法计算了各阶段地下开采引起的地表移动与变形值,并以隧道左线为例,分析了隧道损坏的成因,以及煤炭资源全部开采后隧道左线可能受损情况,提出了可供隧道维护及保障安全的工程措施建议。预计结果与隧道损害情况接近,因此概率积分法可以用于隧道受采动影响分析。
Affected by the mining of Xinsheng coal mine and Changrong coal mine,some cracks and chip off-falling occur at the Bayueshan tunnel of Chongqing-Chengdu expressway.In order to understand the impact of coal mining on the tunnel,the tunnel displacement and deformation caused by underground mining in different stages are calculated with probability integral method,the causes of tunnel and pavement damages and deformation of the left tube after full mining of coal resources are analyzed by taking the left tunnel tube as an example,and the recommended measures for tunnel maintenance and safety are proposed.The predicted results are basically consistent with the actual conditions of tunnel and pavement damages.
作者
孙浩轩
李培现
崔希民
姚德华
肖武
SUN Haoxuan;LI Peixian;CUI Ximin;YAO Dehua;XIAO Wu(China University of Mining and Technology(Beijing),100083;China Railway Fifth Survey and Design Institute Group Co.,Ltd,Beijing 102600;School of Public Affairs,Zhejiang University,Hangzhou 310058)
出处
《现代隧道技术》
EI
CSCD
北大核心
2019年第6期99-106,120,共9页
Modern Tunnelling Technology
关键词
隧道损伤
采动影响
开采沉陷
概率积分法
保护措施
Tunnel damage
Mining effect
Mining induced subsidence
Probability integral method
Protective measures
