The mechanical responses of tunnels reinforced by combined bolt–cable system are
investigated in this paper. An analytical model of the convergence-confinement type is …

Numerous subway tunnels have been built in soft upper and hard lower composite strata.
However, the stability and bearing capacity of composite strata are difficult to predict …

Large deformation is a crucial factor in deep-buried tunnels constructed through soft rocks
with a high geostress. Taking the deep-buried Baozhen tunnel through layered shale as an …

As geotechnical engineering continues to expand into deep underground environments, it is
common for creep effects to cause large deformations of roadways and damage to …

Large deformation has been a common engineering problem during the construction of
tunnels in areas with high geo-stress, the large deformation of layered surrounding rock …

Tunnelling through layered rock mass with high geo-stress often leads to large deformation
disasters, including rock collapses and structural failures. This study investigates the …

The purpose of this study was to measure internal longitudinal displacements taking place
during tunnel excavation and compare them to the displacements predicted using available …

Earth pressure balance (EPB) shield machine frequently drives along a route with a
longitudinal inclination angle (δ) during tunnel construction. The tunnel face stability is a …

For small radius curve shield tunneling, over excavation is required on the inner side of the
curve to corner the shield machine. Currently, there is no corresponding analytical solution …

The shotcrete stiffness varies over time in the hardening period, which complexes the
interaction between support structures and rheological rock. This study presents an …