Open AccessSeismic finite element analysis of tailings dam in high seismic intensity area
Author(s) -
Chongxu Zhao,
Lunqiang Yao,
Shichao Hou,
Yantao Zhu,
Hao Gu,
Bo Li
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/525/1/012057
Subject(s) - geology , tailings dam , deformation (meteorology) , finite element method , tailings , intensity (physics) , geotechnical engineering , safety factor , structural engineering , engineering , materials science , oceanography , physics , quantum mechanics , metallurgy
As an important facility for mine exploitation, the safety of tailings dam is very important in high seismic intensity area. In this paper, the seismic stability analysis of tailings dam located in high intensity area was carried out by taking the example of one tailings dam. Three-dimensional finite element model was established, and the calculation results were analyzed and compared under fixed boundary condition and viscous spring boundary condition. The results showed that, (1) Under the static condition, the deformation value is distributed in layers from top to bottom. (2) Under the seismic condition, it can be seen that the Z direction deformation is the largest, followed by the X direction, and the Y direction deformation is the smallest. (3) It is too conservative to evaluate the seismic stability of dam slope with the minimum safety coefficient, while it is more practical to use the minimum average safety factor as the evaluation index.