In this paper, the lower bound (LB) finite element limit analysis in conjunction with
semidefinite programming (SDP) is developed and employed to investigate the stability of …

The failure of the soft rock can seriously threaten the construction and operation of tunnels,
which may suffer from larger deformation and instability. The knowledge of the failure …

A reliable and accurate stability analysis in Hoek-Brown rock masses under fully three-
dimensional geometries requires an efficient and powerful computational method. This …

An analytical solution is proposed for the plastic zones developed around two circular
tunnels with unequal size excavated in intact rock which is governed by the Mohr-Coulomb …

Analytical solutions of near-borehole stress–strain responses are often based on simple
elastic-perfectly plastic constitutive models. However, such models are incapable of …

Besides the (semi-) linear Mohr-Coulomb and Hoek-Brown criteria, other nonlinear functions
are also used to describe the plastic response of rock mass. For a nonlinear yield and plastic …

Throughout engineering construction, large deformation disasters in soft rock tunnels are
encountered increasingly frequently. Therefore, structural health monitoring not only …

In this paper, an analytical–numerical solution is presented for a circular tunnel in the
hydrostatic condition using a generalized nonlinear Hoek–Brown failure criterion. To a deep …

The construction quality of tunnel smooth blasting is difficult to control and fluctuates greatly.
Moreover, the existing technology, which relies on the visual observation, empirical …

Many tunnels around the world are still being constructed by drilling and blasting because
these methods have an unmatched degree of flexibility relative to machine excavations …