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2004•Rock and Soil MechanicsRequires access

Coupling analysis of heterogeneous earth dam stability of seepage field and stress field

WU Qi-xing

Open publisher page 3 citations

Abstract

Based on the seepage characteristics of porous media and nonlinear constitutive relation, the coupling effect of seepage field and stress field is studied. And according to a real heterogeneous earth dam on soft foundation, a mathematical model of nonlinear coupling analysis is established; and the coupling laws about seepage and stress are studied. The results show that under seepage, the interaction of seepage and stress can't be ignored; it will result in the increase of stress level and seepage velocity, especially nearby the water-tight core. The results make it known that the security of earth dam stability will be reduced when the coupling effect of seepage field and stress field is considered.

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What this paper is about

Based on the seepage characteristics of porous media and nonlinear constitutive relation, the coupling effect of seepage field and stress field is studied. And according to a real heterogeneous earth dam on soft foundation, a mathematical model of nonlinear coupling analysis is established; and the coupling laws about seepage and stress are studied. The results show that under seepage, the interaction of seepage and stress can't be ignored; it will result in the increase of stress level and seepage velocity, especially nearby the water-tight core. The results make it known that the security of earth dam stability will be reduced when the coupling effect of seepage field and stress field is considered.

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Available abstract

Based on the seepage characteristics of porous media and nonlinear constitutive relation, the coupling effect of seepage field and stress field is studied. And according to a real heterogeneous earth dam on soft foundation, a mathematical model of nonlinear coupling analysis is established; and the coupling laws about seepage and stress are studied. The results show that under seepage, the interaction of seepage and stress can't be ignored; it will result in the increase of stress level and seepage velocity, especially nearby the water-tight core. The results make it known that the security of earth dam stability will be reduced when the coupling effect of seepage field and stress field is considered.

Key concepts: Geotechnical engineering, Coupling (piping), Stress field, Stress (linguistics), Nonlinear system, Field (mathematics), Stability (learning theory), Pore water pressure

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