QIN Jian-she, YU Xing-fu, ZHONG Xiao-chun, et al. Numerical research on face movement and collapse of shield tunneling in silt ground[J]. 2007, 28(S1).
QIN Jian-she, YU Xing-fu, ZHONG Xiao-chun, et al. Numerical research on face movement and collapse of shield tunneling in silt ground[J]. 2007, 28(S1).DOI:
The face support pressure control is a key operation during earth pressure balanced shield excavation. Three-dimensional fast Lagrangian differential finite element method can calculate the large strain of material
which is used to simulate the influence of face support pressure to face movement and collapse. Deformation and collapse pattern is discussed
and the soil stress release is analyzed due to shield excavation. Some useful results from numerical simulation are given for controlling face support pressure.