To enhance computational efficiency in reliability analysis, metamodeling has been widely
adopted for reliability assessment. This work develops an efficient reliability method which …

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 …

Seepage induced by the difference of hydraulic head between the ground and the shield's
chamber will adversely affect the stability of tunnel face when tunnels are excavated through …

To better assess the stability of tunnel faces in cohesion-frictional soils, tunnel face stability
was investigated considering the soil arching effect in this study. An improved 3D rotational …

Based on the limit equilibrium method, a new three-dimensional progressive failure model,
which includes the upper loose zone and the lower slip zone, is proposed to analyze the …

An innovative approach that combines isogeometric analysis (IGA), limit analysis, machine
learning, and the multivariate adaptive regression splines (MARS) model is presented in this …

Tunnels are unavoidably constructed in layered rock masses, and tunnel collapses are often
associated with such layering. Two violent collapses at the Yangshan tunnel were analysed …

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 …

Reliable prediction of tunnel face stability is a key challenge for tunnel engineering,
especially when drilling in highly fractured rock masses under the water table. This work …

The horizontally layered or even inclined strata are often encountered in practical shield
tunneling. The influence of inclined strata on face stability of shield tunnels is not fully …