Extreme deformation and collapse induced by tunnelling commonly occur in weathered
phyllite strata even with conservative design. Taking a highway tunnel in weathered phyllite …

To investigate the interaction of the bolt-reinforced rock and the surface support, an
analytical model of the convergence-confinement type is proposed, considering the …

Deep-buried tunnels constructed through layered soft rocks undergo large deformation,
which threatens their safety and leads to construction delay. When a soft rock tunnel is …

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 …

This study focused on the mechanical behavior of a deep-buried tunnel constructed in
horizontally layered limestone, and investigated the effect of a new combined rockbolt–cable …

Understanding the failure process and the load-bearing arch effect of the surrounding rock is
crucial for the stability control and support design of tunnels under high geostresses. In this …

When studying the deformation characteristic of tunnel lining in the expansive surrounding
rock, most research focuses on the expansion effect of surrounding rock after water …

Aiming at the large deformation of surrounding rock during tunnel construction under high
ground stresses, this paper takes a high ground stress soft rock tunnel project in Yunnan …

Tunneling using the drilling and blasting method induces a blasting damaged zone around
the tunnel, which affects the tunnel stability as well as the resulting support design. In this …

Understanding the characteristics and distribution patterns of the initial geo-stress field in
tunnels is of great significance for studying the problem of large deformation of tunnels …