Face stability is an essential issue in tunnel design and construction. Layered rock masses
are typical and ubiquitous; uncertainties in rock properties always exist. In view of this, a …

In slurry-shield tunneling, the bentonite slurry tends to infiltrate into the soil skeleton ahead
of the tunnel face, causing a forward seepage flow associated with excess pore pressures in …

Due to design optimization and geological conditions, shield tunnels often work with
different longitudinal inclination angles. In this case, it is very important to understand and …

In order to give a more accurate prediction of the required face pressure, this work revisits
the three-dimensional (3D) face stability problems of rock tunnels excavated in Hoek-Brown …

This paper aims at proposing a calculation model to deal with the face stability of shield
tunnels in unsaturated soil. Based on the existing results of centrifugal test and numerical …

Many published experimental tests and field observations have shown that blow-out failure
is potentially more likely to happen during the excavation of shallowly buried tunnels …

In engineering mathematics, the unsaturated nature of soil has a significant impact on the
seismic bearing capacity solution. However, it has generally been neglected in the …

Seismic events are an active factor in causing slope instability, and the existing pseudo-
dynamic method ignores some practical engineering conditions. In this paper, the seismic …

Under multiple-stratum conditions, the stability of the tunnel face must be maintained by a
reasonable support pressure. Through the combination of theoretical analysis and …

Based on a 3D horn failure mechanism of the face of starting point of shield tunnels, the
stability of unsaturated soils at the end was analyzed via the shear strength theory of …