Stability of earth-rockfill dams: Influence of geometry on the three-dimensional effect

被引：45

作者：

Yu, YZ ^{[1
]}

Xie, LQ ^{[1
]}

Zhang, BY ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Hydraul Engn, Beijing 100084, Peoples R China

来源：

COMPUTERS AND GEOTECHNICS | 2005年 / 32卷 / 05期

关键词：

earth-rockfill dam; stability; safety factor; three-dimensional effect;

D O I：

10.1016/j.compgeo.2005.03.003

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A series of parametric studies were performed to investigate the three-dimensional (3D) effect on the stability of an earth-rockfill dam, with respect to some major factors, such as geometrical characteristics of the dam and topography of the canyon. The length-height ratio of the earth-rockfill dam clearly influences the 3D safety factor. A power function suitably expresses the relationship between the increment ratio for the safety factor and the length-height ratio. The canyon shape, gradient of dam slope and height of the dam significantly influence the 3D effect. The results may be used as a blueprint by combining the two-dimensional (2D) safety factor in common use, and the relationship between 2D and 3D safety factors established in this study. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：326 / 339

页数：14

共 20 条

[1]

BELYAKOV AA, 1989, HYDROTECH CONSTR, V22, P718

[2] Base stability of circular excavations in soft clay [J].

Cai, F ;

Ugai, K ;

Hagiwara, T .

JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, 2002, 128 (08) :702-706

[3] 3-DIMENSIONAL LIMIT EQUILIBRIUM-ANALYSIS OF SLOPES [J].

CHEN, RH ;

CHAMEAU, JL .

GEOTECHNIQUE, 1983, 33 (01) :31-40

[4] A three-dimensional slope stability analysis method using the upper bound theorem - Part I: theory and methods [J].

Chen, ZY ;

Wang, XG ;

Haberfield, C ;

Yin, JH ;

Wang, YJ .

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2001, 38 (03) :369-378

[5]

DAWSON E, 2000, GEOTECHNICAL SPECIAL, P99

[6]

DONALD B, 1992, 6 INT S LANDS CHRIST, P1665

[7] Three-dimensional base stability of rectangular excavations in soft soils using FEM [J].

Faheem, H ;

Cai, F ;

Ugai, K .

COMPUTERS AND GEOTECHNICS, 2004, 31 (02) :67-74

[8]

HOVLAND HJ, 1977, J GEOTECH ENG-ASCE, V103, P971

[9] AN EXTENSION OF BISHOPS SIMPLIFIED METHOD OF SLOPE STABILITY ANALYSIS TO 3 DIMENSIONS [J].

HUNGR, O .

GEOTECHNIQUE, 1987, 37 (01) :113-117

[10] A GENERAL LIMIT EQUILIBRIUM-MODEL FOR 3-DIMENSIONAL SLOPE STABILITY ANALYSIS [J].

LAM, L ;

FREDLUND, DG .

CANADIAN GEOTECHNICAL JOURNAL, 1993, 30 (06) :905-919

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