This study investigates the coupled effect of the soil spatial variations and the disturbance of
ground surface on the existing tunnel using random finite difference method (RFDM). The …

This paper analyzes the characteristics and mechanism of the collapse of a tunnel in
Wenzhou in fault fracture zone during rainfall based on the failure theory of surrounding …

Statistical analysis of 44 loess tunnel collapse accidents in the past 15 years as related to
causes and characteristics are discussed in this study. First, several statistical indicators …

The blow count (N) measured from the standard penetration test is widely used to predict the
shear wave velocity (V s) of soils. As the NV s relationships vary from one region to another …

Water-soil gushing has become the main risk affecting the safety of shield tunnels in water-
rich sandy layers. In this paper, a two-phase single-point material point method (MPM) is …

With the frequent occurrence of heavy rainfall, the lining cracking, leakage, and buckling
collapse accidents of water-rich mountain tunnels are becoming increasingly prominent. A …

Most of urban ground collapses and tunnel failures are caused by joint leakage of shield
tunnel lining. This paper conducts a series of model tests and particle flow simulations …

Construction of cross passages by mechanical methods represents an emerging
construction technique with numerous advantages. However, cutting through segments of …

The localised leakage in shield tunnels that mainly occurs at segment joints may induce
other defects, which threatens operational safety. To obtain a universal solution for the …

Lining cracking is a typical damage phenomenon during the construction of metro tunnels,
especially in the mixed strata with soft upper and lower hard rock, which severely affects the …