Shield docking technology is widely used in underwater shield tunnels. As the not perfect, instability of tunnel face and stress relaxation segment lining caused by dismantling need to be solved. Using a cross-sea project, reinforcement with steel channel process studied. The longitudinal effect after thrust unloading analyzed, theoretical solution circumferential joint opening, or without rein...

Abstract This paper investigates the stress transferring mechanism of a pressure tunnel strengthened with CFRP. A simplified mechanical model internal water transfer from CFRP to lining concrete is established, and key parameters that influence between are identified. solid-spring-solid three-dimensional finite element established. Using numerical model, influences above on ratios borne by inve...