Panpan Zhai1, 2, Ping Xu1, 2, *
CMC-Computers, Materials & Continua, Vol.62, No.1, pp. 179-197, 2020, DOI:10.32604/cmc.2020.06474
Abstract When a tunnel is excavated below the groundwater table, groundwater flows
in through the excavated wall of the tunnel and seepage forces act on it. These forces
significantly affect the ground reaction curve, which is defined as the relationship
between the internal pressure and radial displacement of the tunnel wall. This study
investigates analytical solutions for seepage forces acting on the lining of a circular
tunnel under steady-state groundwater flow. Considering the tunnel’s construction or
service period and boundary conditions, the direction of maximum principal stress
changes, and the input stress of the Mohr-Coulomb criterion varies. The stress
distribution and… More >
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