...-interval is excavated, and the excavated tunnel and the rock pillar between two tunnels are easy to be destroyed, so special design and construction requirement are asked. But its cost is only half of multi-arch tunnel, excavation method is simpler and construction period is shorter, moreover, it can...

...ISRM-Sponsored International Symposium on Rock Mechanics: Rock Characterisation, Modelling and Engineering Design Methods Comparison and Analysis on Surface Settlement Caused by Multi-arch Tunnel and Neighborhood Tunnel?Construction M.L. Huang, F.Wang & W. Lu Beijng Jiaotong University, Beijing...