Deformation Monitoring and Stability Evaluation of Surrounding Rock in Tail Water Tunnels of Shuibuya Power StationJIANG Jie~1,LI Xin-ping~2,XU Peng-cheng~(2,3) (1.Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China;2.School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China;3.The Sixth Hydroelectric Engineering Construction Bureau,Changsha 410000,China)In tunnels of Qingjiang Shuibuya power station digging,the stability of the surrounding rock was the key issue for the safety of mining.Deformation monitoring of surrounding rock was applied to the process of construction.This paper introduced the arrangement of monitoring cross-section,the means of implantation of measuring points,monitoring project and the method of handing with the data.The prediction of stable displacement and stable time was provided.Meanwhile,The stability of the surrounding rock and the lining was analyzed and evaluated.Some meaningful conclusions were obtained.surrounding rock stability;deformation monitoring of surrounding rock;prediction of stable displacement