In an urbanization process, infrastructure elements such as tunnels and deep excavations
are widely used to service the development of cities. Owing to the lengthy geological …

Owing to complex and lengthy geological processes, inclined layered soils are frequently
encountered in geological and geotechnical engineering. Tunneling in such strata threatens …

The design experience and the shallow tunnel theory, which emphasize the plane strain
assumption, two-dimensional (2D) strength theory, and indoor or back analysis-based …

This paper aims at analyzing the influence of non-associated flow rule on passive face
instability for shallow shield tunnels. The influence exerted by dilation angle on the limit …

This paper aims at presenting a three-dimensional (3D) failure mechanism for a circular
tunnel driven under a compressed air shield in the case of a dry multilayered purely frictional …

Field data have shown the fact that soil spatial variability could aggravate the uncertainty of
tunnel convergence ΔD (a key indicator for serviceability and safety of tunnels). This paper …

The kinematic approach in combination with numerical simulation is used to examine the
effect of pore water pressure on tunnel face stability. Pore water pressure distribution …

Considering the rapid expansion of the economy and the increasing demand for
infrastructure development, the scale of the tunnelling is expanding, and tunnel is inevitably …

The stability of the middle soil pillar (MSP) is considered to be a crucial factor in ensuring the
safety during the construction of asymmetric parallel tunnels. In this paper, both …

The present paper is devoted to the estimation of the safety factor of a tunnel face with a non-
circular section using the upper-bound limit analysis in combination with the strength …