Tehnički vjesnik, Vol. 25 No. 1, 2018.
Prethodno priopćenje
https://doi.org/10.17559/TV-20170322074315
Research on Method of Dynamic Stability Analysis for Slopes of Earth and Rockfill Dam Basing on the P-Z Model
Hongyang Zhang
; North China University of Water Resources and Electric Power, Collaborative Innovation Center of Water Resources Efficient Utilization and Protection Engineering of Henan Province, Zhengzhou 450046, China
Shuai Li
; North China University of Water Resources and Electric Power, Zhengzhou 450046, China
Xianqi Zhang
; North China University of Water Resources and Electric Power, Zhengzhou 450046, China
Liwei Han
; North China University of Water Resources and Electric Power, Zhengzhou 450046, China
Zelin Ding
; North China University of Water Resources and Electric Power, Zhengzhou 450046, China
Cundong Xu
; North China University of Water Resources and Electric Power, Zhengzhou 450046, China
Sažetak
According to the problems in dynamic stability analysis for slopes of earth and rockfill dam, the P-Z constitutive model, which is a kind of the multi-mechanism plastic model based on generalized plasticity, is introduced in the paper. Strength reduction factors of P-Z model are derived and verified, and based on them a new kind of method of dam slopes dynamic stability is put forward. For the method, the dynamic stability of dam slopes is judged by dynamic displacement time history and post-earthquake permanent displacement. The results show that local instability of dam slopes and variation features of dynamic response are obtained by the method, which is more reasonable.
Ključne riječi
dynamic stability analysis; local instability; P-Z constitutive model; strength reduction FEM
Hrčak ID:
193620
URI
Datum izdavanja:
10.2.2018.
Posjeta: 2.493 *