Tingjin Liu1,2, Siyuan Zheng3, Xinwei Tang1,2,3,*, Yichao Gao4
CMES-Computer Modeling in Engineering & Sciences, Vol.120, No.3, pp. 545-560, 2019, DOI:10.32604/cmes.2019.05043
Abstract Based on the modified scale boundary finite element method and continued fraction solution, a high-order doubly asymptotic transmitting boundary (DATB) is derived and extended to the simulation of vector wave propagation in complex layered soils. The high-order DATB converges rapidly to the exact solution throughout the entire frequency range and its formulation is local in the time domain, possessing high accuracy and good efficiency. Combining with finite element method, a coupled model is constructed for time-domain analysis of underground station-layered soil interaction. The coupled model is divided into the near and far field by the truncated boundary, of which the… More >
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