Abstract: This paper presents a comprehensive review of the applications and limitations of using Protodyakonov and Terzaghi theories in the different surrounding rock mass types in Daban Diversion Water Tunnel Project. For the excavation in hard rock mass segments, the supporting stresses are determined through the insitu geostress measurement and numerical back analysis using finite element methods. The stresses in the liners can also be estimated and the appropriate liner type can be selected. The construction results indicate that this approach is reasonable.

Key words: Double Shield TBM Excavated Tunnels, Supporting Stresses, Liner Segments, Liner Selection