Abstract: Support is one of the most important aspects that contribute to long-term stability and tunnel safety. Lining cracking and even failure often occur during tunneling construction, especially for soft rock tunnels. To address ...

Abstract: Microwave heating is a novel and promising method to remove mortar that adheres to aggregates in recycled concrete. A systematic experiment was carried out to evaluate the heating results of mortar-aggregate composite ...

Abstract: Deformation control and stability analysis are very important for tunnel construction. Large deformations of the constructed primary support accompanied by lining cracking and spalling occurred in the Dongxishan Tunnel ...

Abstract: 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. However, accounting for this nonlinear hardening ...

Abstract: During deep excavation in weak rock masses, the time-dependent deformation of the rock and longitudinal advancement process have significant influences on the tunnel performance. Accordingly, a combined support system ...

Abstract: The mechanical responses of tunnels with stiff and yielding linings were predicted using an analytical method. A theoretical model of a stiff lining-supported tunnel was established, which considered the effects of tunnel ...