Face Stability Analysis for Tunnels under Steady Unsaturated Seepage and Inhomogeneity Conditions
Yi Xie,
Hong Liao,
De Zhou
Abstract:In the field of tunnels, the stability of tunnel faces is generally considered in dry, saturated and homogeneous soils. However, the actual condition of some soils has been found to be inhomogeneous, with unsaturated seepage. In this paper, an analytical method is applied to estimate the safety factor when the supporting force at the tunnel face is zero under steady unsaturated seepage and inhomogeneous conditions. This method combines kinematic limit analysis techniques with strength reduction techniques; an … Show more
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