Abstract The geological structure of surrounding rocks of super-long West Qinling tunnel is complex and the tunnel is located in the area of high ground stresses with developed faults. The paper introduces the geological characteristics and regulations of stress variation of the fault based on the tunnel driving through F54 fault, describes the construction method and support parameters of the project.
Keywords ：
Super-long tunnel Fractured zone Construction technique
Abstract ：
The geological structure of surrounding rocks of super-long West Qinling tunnel is complex and the tunnel is located in the area of high ground stresses with developed faults. The paper introduces the geological characteristics and regulations of stress variation of the fault based on the tunnel driving through F54 fault, describes the construction method and support parameters of the project.
Keywords ：
Super-long tunnel Fractured zone Construction technique
published: 2010-03-10
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2011, Vol. 48 