Analysis of Surrounding Rock Stability Based on Monitoring and Measurement of Guanhuchong Tunnel

In order to evaluate the stability of surrounding rock in Guanhuchong Tunnel during construction,the monitoring data and measurement about peripheral displacement convergence,vault settlement and uplift of inverted arch were put together for analysis. It is shown that the peripheral displacement convergence and vault settlement change faster in the early stage of construction,then slow down at the later half stage of construction,resulting in the surrounding rock in a mostly stable condition. This analytical method may be of reference for future reasonable usage of monitoring and measurement data of similar tunnels.