Modeling coupled processes of non-steady seepage flow and non-linear deformation for a concrete-faced rockfill dam

被引：53

作者：

Chen, Yifeng

Hu, Ran

Lu, Wenbo

Li, Dianqing

Zhou, Chuangbing ^{[1
]}

机构：

[1] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China

来源：

COMPUTERS & STRUCTURES | 2011年 / 89卷 / 13-14期

基金：

中国国家自然科学基金;

关键词：

Coupled hydromechanical analysis; Concrete-faced rockfill dam; Non-steady seepage flow; Non-linear deformation; Numerical modeling; THIN-LAYER ELEMENT; NUMERICAL-SOLUTION; FORMULATION; INTERFACES;

D O I：

10.1016/j.compstruc.2011.03.012

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A coupled non-linear elastic deformation and non-steady seepage flow model was established for performance assessment of the concrete-faced rockfill (CFR) dams. The deformation behaviors of the rockfills and the soil-structure interfaces were modeled with the Duncan-Chang model and Desai's thin-layer elements, respectively. The seepage flow process was characterized with a newly-developed parabolic variational inequality formulation of the Signorini's condition. The deformation-dependent permeability of the rockfills was characterized by a calibrated Kozeny-Carman model that considered the influence of confining pressure on porosity. The proposed model was applied to capture the seepage flow and deformation behaviors of the Shuibuya CFR dam in China. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1333 / 1351

页数：19

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