On-site Test Study On Defining Loose Range Of Surrounding Rock Of High-way Tunnels With Multi-measuring Method

摘要

Determining surrounding rock loose circle of plastic surrounding rock stability evaluation was critical parameters for the rational, economic support designed to provide an effective basis. In this paper, relying on field engineering, integrated embedded surrounding rock pressure monitoring and deformation resistivity measurement systems to determine the plastic surrounding rock loose circle to give the plastic surrounding rock loose circle scope, guided the tunnel construction, and it provided an important parameter for the tunnel design.