[HTML][HTML] Probabilistic analysis of tunnel face seismic stability in layered rock masses using polynomial Chaos Kriging metamodel

J Man, T Zhang, H Huang, D Dias - Journal of Rock Mechanics and …, 2024 - Elsevier
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 …

Three-dimensional tunnel face stability considering slurry pressure transfer mechanisms

C Hou, Q Pan, T Xu, F Huang, X Yang - Tunnelling and Underground …, 2022 - Elsevier
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 …

Visualization investigation on stability of shield tunnel face with transparent soil, considering different longitudinal inclination angles

Z Jia, Y Bai, C Liu, D Zhang, Y Ji, H Zhao - Tunnelling and Underground …, 2023 - Elsevier
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 …

Three-dimensional face stability analysis of rock tunnels excavated in Hoek-Brown media with a novel multi-cone mechanism

J Zhong, C Hou, X Yang - Computers and Geotechnics, 2023 - Elsevier
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 …

Stability analysis of a shield tunnel in unsaturated soil considering the soil arch effect

X Cui, P Li, J Wu, Y Wei - International Journal of Geomechanics, 2024 - ascelibrary.org
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 …

Three-dimensional blow-out stability analysis of shield tunnel face in anisotropic and heterogeneous soils

GH Chen, JF Zou, XX Wei, FQ Guo - Tunnelling and Underground Space …, 2023 - Elsevier
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 …

[HTML][HTML] Seismic Bearing capacity solution for strip footings in unsaturated soils with modified pseudo-dynamic approach

S Xu, D Zhou - Mathematics, 2023 - mdpi.com
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 …

[HTML][HTML] Seismic stability for 3D two-step slope governed by non-linearity in soils using modified pseudo-dynamic approach

Y Yang, D Zhou - Applied Sciences, 2022 - mdpi.com
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 …

Face stability of tunnel in multi-stratum: limit analysis and numerical simulation

Y Chang, P Cao, J Zhang, Z Fan, W Xie, Z Liu… - Geotechnical and …, 2023 - Springer
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 …

[HTML][HTML] Stability Analysis of Unsaturated Soils at the End of Starting Point of Shield Tunnels after Well Dewatering

B Zhang, F Qu - KSCE Journal of Civil Engineering, 2024 - Elsevier
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 …