Open AccessSeismic response analysis of earth-rock fill dam on deep overburden under viscoelastic boundary condition
Author(s) -
Long Wang,
Zhiyong Yang,
Jianming Zhao,
Xiaogang Wang,
Kaibin Zhu,
Xiaosheng Liu
Publication year - 2021
Publication title -
revista internacional de métodos numéricos para cálculo y diseño en ingeniería
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.213
H-Index - 9
eISSN - 1886-158X
pISSN - 0213-1315
DOI - 10.23967/j.rimni.2021.01.002
Subject(s) - overburden , geology , viscoelasticity , foundation (evidence) , boundary (topology) , acceleration , geotechnical engineering , boundary value problem , spectral acceleration , response spectrum , seismic wave , response analysis , vibration , structural engineering , peak ground acceleration , seismology , engineering , materials science , ground motion , mathematics , law , mathematical analysis , physics , classical mechanics , quantum mechanics , political science , composite material
The dynamic response characteristics of an earth-rock fill dam on a deep overburden are the focus of seismic research. In particular, evaluating the influence of the earthquake safety of the dam. A dynamic response analysis of earth-rock fill dam on a deep overburden based on viscoelastic boundary conditions was used to study the influence of boundary conditions (including fixed boundary conditions and viscoelastic boundary conditions). The results show that the fixed boundary condition greatly improves the dynamic response level of the dam during an earthquake and has no obvious influence on the distribution of the acceleration response in the dam and the foundation. The difference in the calculation results under the two boundary conditions is related to the seismic input characteristics and dynamic deformation characteristics of the soil material. An analysis of the acceleration response spectrum shows that the influence of the boundary conditions on the calculation results is limited to the magnitude level of the acceleration response, while the spectral characteristics of the vibration of the dam and the foundation do not have a significant impact.