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The case study of closely spaced twin tunnels excavated vertically beneath the adjacent Chaoyangmen station in Beijing, China is introduced. The existing subway station is part of the Beijing subway Line 2. The new recta...

Based on the actual state of the soil along rail transit in hot and rainy area, the resonant column tests on the soil under wetting and drying circles are conducted to study the stiffness characteristics of residual soil...

By using the method of model tests and introducing the progressive failure theory into the analysis of disease occurrence and propagation of segment linings of shield tunnels, from the internal force, structural displace...

Based on the concept of true stress and the strain equivalence hypothesis, a three-dimension elastic-plastic damage constitutive model for rock is established. Combining the nonlinear unified strength model as the yield ...

The coal permeability is the key parameter for the gas seepage characteristics and the migration law, and the structural anisotropy of the coal seam makes the permeability have obvious orientation dependence. By assumein...