Analysis of ground movements induced by tunnels in sand based on contract CR3 in Kaohsiung Metro

Data taken from Contract CR3 of Kaohsiung Metro Project, Taiwan were used for this study. Contract CR3 is located at ChienJian and Lingya District of Kaohsiung City and it also has three cut-cover stations (R7, R8 and R9) and four singleline twin-bored tunnels (LUR15, LUR16, LUR17 and LUR18) with three cross-passages. Figure 1 presents the network of Kaohsiung metro and the location of CR3. For the purposes of this paper, only the construction of the tunnels is considered, and station construction is not included.