As yielding supports can deform without being damaged, the yielding principle has attracted
significant attention for tunnelling in squeezing ground compared with the heavy support …

Abstract The so-called “Non-Deformable Support System” and “Yielding Support System”
have been used in tunnel ground support designs in squeezing rock conditions. According …

According to the convergence confinement theory, it is an effective measure to control the
large deformation of high ground stress in fractured soft rock tunnels by using yielding …

In view of the problems of large deformation of surrounding rock, high in-situ stress, and
serious soft fracture of rock stratum in deep soft rock roadway, the instability deformation …

Yielding supports have shown significant advantages in overcoming the problems of large
deformations caused by tunnelling in squeezing ground. The purpose of this study is to …

The second invariant of deviatoric stress of the coal and rock mass is closely related to the
distortion energy driving the deformation and failure of the surrounding rock. Based on the …

Energy drives the large deformation of soft rock tunnels, which is a nonlinear mechanical
behavior of surrounding rock. This study aims to develop an analytical model for analyzing …

The focus of this paper is the thick soft rock mass roof of the track roadway in the No. 3606
panel of the Chaili Coal Mine. Due to its substantial thickness, the soft rock mass roof of the …

To address the problem of large deformations in weak surrounding rock tunnels under high
ground stress, which cause damage to initial support structures, this study proposes a novel …

The application of folding arch frames is deemed crucial for unmanned arch frame erection,
with the selection of the joint form being a determining factor in the overall mechanical …