As the requirements of Metro line's setting, sometimes, there is overlapped tunnel in building Metro engineering. The most concerning of people is the influence on circumstance of city by excavation of tunnel. Namely, it is the influence on the use of pipe under ground, foundation of building and traffic. So, it is very important for the secure of design and construction to forecast the settlement of ground surface induced by the excavation of the overlapped tunnel exactly.
Firstly, This paper simply in...