Research on Dynamic Characteristics of Loess Homogeneous Dam under Seismic Waves

Moyu Pan; Peng Huang; ShengJie Di; Ying Zhang; Xi Lu

doi:10.54097/hset.v79i.15122

Authors

Moyu Pan
Peng Huang
ShengJie Di
Ying Zhang
Xi Lu

DOI:

https://doi.org/10.54097/hset.v79i.15122

Keywords:

Loess homogeneous dam; seismic response; acceleration; permanent deformation.

Abstract

Based on the relevant provisions of the seismic design code, the three-dimensional nonlinear seismic response analysis of an actual loess homogeneous dam engineering is carried out. The seismic waves use the ground motion time history generated by the relevant design response spectrum of the set seismic site. The research results show that the homogeneous dam in the V-shaped valley has a significant amplification effect in the middle of the valley. The acceleration amplification area of the dam is above 4/5 of the dam height and within the range of 1/3 of the dam axis length. The regularity shows obvious "whiplash effect" and three-dimensional river valley effect.

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