摘要
Abstract
TBM construction technology has been applied to tunnel excavation,which is technically mature and widely used in the construction of deep buried long tunnel.The factors affecting TBM construction of tunnel are basically clear.It is generally believed that TBM construction of tunnel through shallow buried river valley is easy to cause surrounding rock collapse and water gushing accidents,so TBM construction is not suitable.In order to study the TBM construction suitability of shallow buried valley section,two typical engineering examples of TBM construction of tunnels passing through shallow buried valley section were used to compare the detailed engineering geological conditions,analyze the causes of landslides,and carry out TBM construction suitability analysis.The results show that after proper engineering treatment of the section covered by weakly weathered rock mass greater than 1 times the diameter of the tunnel,TBM construction is suitable.关键词
TBM施工/适宜性评价/浅埋隧洞/围岩塌方Key words
TBM construction/suitability evaluation/shallow buried tunnel/surrounding rock collapse分类
建筑与水利
