The use of yielding supports has proven to be a highly effective measure for tunneling in
squeezing grounds because of their agreement with the law of mechanical movement of …

Since underground structures such as tunnels are inevitably surrounded by rocks, their long-
term safety and stability are primarily governed by the comportment of these materials. Being …

The safety of circumferential yielding lining is influenced significantly by the shotcrete
hardening property. However, presently, negligible research attention has been paid to this …

Circumferential yielding lining is able to tolerate controlled displacements without failure,
which has been proven to be an effective solution to large deformation problem in …

Large squeezing deformation has been a main concern in the construction of deep-buried
tunnels with soft surrounding rocks in high-geostress areas, threatening the safety of tunnel …

Abstract The Sichuan–Tibet railway construction has received significant attention from both
China and abroad. The new section from Ya'an to Nyingchi is about 1018.6 km long …

The application of compressible layers is considered to be the most promising solution for
solving the problem of large deformations in deep soft-rock tunnels. However, although …

Tunnels excavated in soft rock under high in situ stress are usually accompanied by large
time-dependent deformation, slow convergence, and long periods of increased support load …

Ignoring the shotcrete hardening property in tunnel design may lead to an overestimation of
the bearing capacity of shotcrete liners and underestimation of tunnel convergence …

Tunneling stoppage often occurs during tunnel construction, especially in weak and
rheological ground. The discontinuous excavation caused by the stoppage usually has a …