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Seismic Response Analysis Method for Lining Structure in Underground Cavern of Hydropower Station

  • Hao ZhouEmail author
  • Ming Xiao
  • Yang Yang
  • Guoqing Liu
Structural Engineering
  • 4 Downloads

Abstract

Based on the analysis of joint shear test, the complex shear strength model of the interface between surrounding rock and lining structure, considering the interfacial bonding characteristics, shear failure mechanism and seismic dynamic deterioration effect, is established. And based on the dynamic contact force method, the dynamic calculation method of contact surface is presented, which is suitable for the dynamic analysis of the contact system between surrounding rock and lining of underground powerhouse. Then the dynamic numerical simulation method for the lining structure of underground powerhouse is formed by coupling the complex shear strength model with the dynamic calculation method of the contact surface. By using this method and based on the independently developed dynamic calculation platform of underground powerhouse, the evolution process and characteristics of seismic damage of lining structure of Yingxiuwan underground powerhouse are studied. At the same time, the numerical simulation analysis is carried out on the vibration damping measures of the lining structure. The results shows that the dynamic numerical simulation method for lining structure is effective and reasonable. In addition, the idea on the aseismic design of lining structure of underground powerhouse is put forward.

Keywords

underground powerhouse lining structure shear strength model numerical simulation method characteristics of seismic damage damping design of lining structure 

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Copyright information

© Korean Society of Civil Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Changjiang Institute of Survey, Planning, Design and ResearchWuhanChina
  2. 2.State Key Laboratory of Water Resources and Hydropower Engineering ScienceWuhan UniversityWuhanChina

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