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

2019 ◽  
Vol 23 (3) ◽  
pp. 1236-1247 ◽  
Author(s):  
Hao Zhou ◽  
Ming Xiao ◽  
Yang Yang ◽  
Guoqing Liu
Keyword(s):  
Seismic Response ◽  
Hydropower Station ◽  
Response Analysis ◽  
Analysis Method ◽  
Seismic Response Analysis ◽  
Underground Cavern ◽  
Lining Structure

scholarly journals Seismic Response Analysis of Concrete Lining Structure in Large Underground Powerhouse

2017 ◽  
Vol 2017 ◽  
pp. 1-14 ◽  
Author(s):  
Xiaowei Wang ◽  
Juntao Chen ◽  
Ming Xiao ◽  
Danqi Wu
Keyword(s):  
Constitutive Model ◽  
Seismic Response ◽  
Surrounding Rock ◽  
Concrete Lining ◽  
Response Analysis ◽  
Analysis Method ◽  
Stability Calculation ◽  
Concrete Material ◽  
Underground Powerhouse ◽  
Lining Structure

Based on the dynamic damage constitutive model of concrete material and seismic rock-lining structure interaction analysis method, the seismic response of lining structure in large underground powerhouse is studied in this paper. In order to describe strain rate dependence and fatigue damage of concrete material under cyclic loading, a dynamic constitutive model for concrete lining considering tension and shear anisotropic damage is presented, and the evolution equations of damage variables are derived. The proposed model is of simple form and can be programmed into finite element procedure easily. In order to describe seismic interaction characteristics of the surrounding rock and lining, an explicit dynamic contact analysis method considering bond and damage characteristics of contact face between the surrounding rock and lining is proposed, and this method can integrate directly without iteration. The proposed method is applied to seismic stability calculation of Yingxiuwan Underground Powerhouse, results reveal that the amplitude and duration of input seismic wave determine the damage degree of lining structure, the damage zone of lining structure is mainly distributed in its arch, and the contact face damage has great influence on the stability of the lining structure.

scholarly journals Seismic Response Analysis of Shaft Tower Based on The Interaction of Soil-Well Bore-Shaft Tower

2021 ◽  
Vol 943 (1) ◽  
pp. 012024
Author(s):  
L T Han ◽  
Y P Su ◽  
J W Chen ◽  
N Ge
Keyword(s):  
Seismic Response ◽  
Response Analysis ◽  
Rigid Foundation ◽  
Well Bore ◽  
Analysis Method ◽  
Analysis Model ◽  
Seismic Response Analysis ◽  
Element Analysis ◽  
Finite Element Analysis Method ◽  
The Finite Element Analysis

Abstract To study the influence of soil-well bore-shaft tower interaction on the seismic response of the shaft tower. A numerical analysis model of rigid foundation (without considering the interaction of soil-well bore-shaft tower ) and II site considering soil-well bore-shaft tower interaction is established by the finite element analysis method. The mode period, tower layer displacement and inter-story displacement of shaft tower are analyzed. The results show that, compared with rigid foundation, considering the interaction of soil-well bore-shaft tower, the mode period of the system is prolonged, the tower layer displacement and inter-story displacement of the shaft tower is enlarged. In the engineering design of shaft tower, the influence of the soil-well bore-shaft tower interaction on the seismic response of the shaft tower cannot be ignored.

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