Calculation Parameters of a Shield Tunnel Structure with a Staggered Segmental Tunnel Lining
(1 Engineering Construction Headquarters of Ningbo Rail Transit, Ningbo 310006; 2 Department of Geotechnical Engineering, Tongji University, Shanghai 200092)
Abstract：
Full-scale static loading tests were conducted to ascertain the internal force of stagger-jointed segmental tunnel linings and the key parameters of the modified routine method. The key parameters include the effective bending rigidity ratio and the carry-over factor of the moment. The influence of the buried depth, lateral pressure coefficient, longitudinal force, lateral resistance on the internal force and key parameters were analyzed through different tests. The study indicates that the carry-over factor of the moment is closely related to the buried depth and the longitudinal force, and the effective bending rigidity ratio is affected by the lateral pressure coefficient, depth of the structure, longitudinal force and lateral resistance.
2018, Vol. 55 