Existing mechanism of simulating soil movement at tunnel face is generally based on the
translational or rotational velocity field, which is, to some extent, different from the real soil …

The face stability of a horseshoe-shaped shield tunnel in undrained clays with a linearly
increasing strength is numerically and analytically investigated in this paper. Based on the …

When shield tunnelling is constructed in complex geological conditions using a tunnel
boring machine, the disc cutter in the cutterhead easily wears to the failure state, particularly …

The accurate prediction of tunnelling induced ground movement is of practical and
theoretical significance. This paper proposes a mixed empirical-analytical method based on …

To assess the face stability of a shield tunnel excavated in saturated soils under steady
seepage flow condition, both numerical simulation and theoretical analysis are carried out …

Shield tunnels are widely used in urban underground construction. The stability of the tunnel
face has become a crucial issue in shield tunneling. In this paper, the anisotropy of friction …

The aim of this paper is to determine the critical supporting pressure on the circular face of
an advancing tunnel in undrained clay in which undrained strength increases linearly with …

The face stability of the NATM tunnels (the New Austrian Tunneling Method) in undrained
clays with a linearly increasing strength is numerically and analytically investigated by …

A new numerical upper-bound method applicable to three-dimensional stability problems in
undrained clay is proposed and applied in the analysis of tunnel face stability. Comparisons …

The kinematic approach of limit analysis is explored in three-dimensional face stability of
large-diameter tunnels in soils with linearly increasing undrained strength with depth. Due to …