铁道科学与工程学报2018，Vol.15Issue(5)：1356-1362,7.
地铁隧道矿山法施工事故风险分析与评价
Risk analysis and evaluation of mine tunnel construction accidents
摘要
Abstract
Through the analysis of accident samples of 100 urban subway tunnel construction projects, it was found that 55% of the total accidents were caused by collapse, which accounted for 55.9% of the total casualties. On the basis of this statistic, the influences of c, φ values of rock and soil strength index on the collapse were analyzed by combining the strength reduction method of FEM and point estimation method. The FLAC3D software program was used to simulate the occurrence of the accident in Qingdao Metro Line 3. The study found that the reasons of a subway tunnel collapse are complex, but the root cause is due to changes in rock and soil strength parameters caused by poor stability of the surrounding rock. The collapse of Qingdao Metro tunnel is due to weak rock and soil strength resulted from precipitation. Finally, the conclusions and suggestions of subway tunnel construction are provided, mainly including enhancing geological forecast, completing the geological survey, choosing reasonable excavation methods along the way, emphasizing the monitoring work, etc.关键词
地铁隧道/建设期/风险事故/可靠度/稳定性Key words
subway tunnel/construction period/accident risk/reliability/stability分类
建筑与水利引用本文复制引用
郑涛,孙捷城,王国富..地铁隧道矿山法施工事故风险分析与评价[J].铁道科学与工程学报,2018,15(5):1356-1362,7.基金项目
山东省自然科学基金资助项目(ZR2014EEQ028) （ZR2014EEQ028）
住房和城乡建设部科学技术项目(2016-K4-053) （2016-K4-053）
