Research on Method of Dynamic Stability Analysis for Slopes of Earth and Rockfill Dam Basing on the P-Z Model

• Published in: Tehnički vjesnik Vol. 25; no. 1; pp. 230 - 235
• Main Authors: Zhang, Hongyang, Li, Shuai, Zhang, Xianqi, Han, Liwei, Ding, Zelin, Xu, Cundong
• Format: Journal Article Web Resource
• Language: English
• Published: Slavonski Baod University of Osijek 01-02-2018; Josipa Jurja Strossmayer University of Osijek; Strojarski fakultet u Slavonskom Brodu; Fakultet elektrotehnike, računarstva i informacijskih tehnologija Osijek; Građevinski i arhitektonski fakultet Osijek; Faculty of Mechanical Engineering in Slavonski Brod, Faculty of Electrical Engineering in Osijek, Faculty of Civil Engineering in Osijek
• Subjects: Analysis; Constitutive models; Dam stability; Dams; Dynamic response; Dynamic stability; dynamic stability analysis; Earthquakes; Economic models; local instability; Methods; P-Z constitutive model; Rockfill dams; Seismic stability; Slope stability; Stability analysis; strength reduction FEM
• ISSN: 1330-3651; 1848-6339
• DOI: 10.17559/TV-20170322074315

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.