Abstract At present, the underwater shield tunnels in China are developing towards large-scale cross-sections, consequently, problems such as large buried depth and high waterpressure had brought great challenges to the safety of the segment lining. Accordingly, the load-bearing performance and failure characteristics of segment lining under high water pressure need to be investigated. In view of this, based on the experimental failure results of two prototype large-sectional segment linings used in the Shiziyang Tunnel and the Sutong GIL UHV Power Pipe Gallery Project, the failure characteristics of the large-section segment lining under high-water-pressure were clarified. In addition, the evaluation indexes for the load-bearing performance of the segment lining was proposed and the recommended control parameters based on the test results were given.
FENG Kun,HE Chuan,ZHANG Li, et al. Study on the segmental structure failure of underwater shield tunnel under high water pressure[J]. Hazard Control in Tunnelling and Underground Engineering,
2020, 2(3): 95-106.
