Cause Analysis of Soft and Hard Rock Tunnel Collapse and Information Management
Liping Li1,2,3, Qinghan Wang1, Shucai Li1, Hongwei Huang2, Shaoshuai Shi1, Kang Wang1, Ting Lei1, Diyang Chen1
More details
Hide details
1Geotechnical and Structural Engineering Research Center, Shandong University,
Jinan, Shandong 250061, P.R. China
2Key Laboratory of Geotechnical and Underground Engineering (Tongji University),
Ministry of Education, Shanghai 200092, P.R. China
3Key Laboratory of Coal Resources Exploration and Comprehensive Utilization,
Ministry of Land and Resources, Xi’an, Shanxi 710054, P.R. China
Pol. J. Environ. Stud. 2014;23(4):1227–1233
Collapse is very common in tunnel construction, which can bring immense casualties and economic losses. The interface of soft and hard rock is the typical location for a tunnel collapse. During Shimenya Tunnel construction, collapse of the section ZK123+370~ZK123+365 of the left tunnel occurred. This paper discusses how distribution of layered rock, attitude of the stratum, hydrogeololgy, and advanced geological prediction can contribute to tunnel collapse. According to collapse mechanisms and in situ collapse conditions, managing and monitoring plans were applied to the tunnel collapse section. To ensure the efficiency and safety of collapse management, convergence displacement and arch crown settlement were measured in the process of tunnel information management. Cause analysis of soft and hard rock tunnel collapse and information management can provide a beneficial reference for avoiding tunnel collapse and developing collapse management programs.