Considering the recovering efficiency and recovering average time ad reference for optimizing evaluation,the maximum gradient method and the Horn method are adopted in the contrastive research of the post earthquake recovery process optimizing effect for the tree like network of trunk lines in urban lifelines.
Three possible postseismic deformation analytic models for analyzing the space-time distribution of postseismic effect are constituted and the postseismic viscoelastic relaxation of the %M%8.