A model for slow motion of natural slopes

被引：15

作者：

Cristescu, ND ^{[1
]}

Cazacu, O ^{[1
]}

Cristescu, C ^{[1
]}

机构：

[1] Univ Florida, Dept Aerosp Engn Mech & Engn Sci, Gainesville, FL 32611 USA

来源：

CANADIAN GEOTECHNICAL JOURNAL | 2002年 / 39卷 / 04期

关键词：

natural slope; incipient shear flow; nonhomogeneous Bingham law; creep flow; gravitational consolidation;

D O I：

10.1139/T02-040

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

A new model for describing the slow movement of natural slopes is proposed. The geological material in the slope is modeled with a nonhomogeneous Bingham constitutive equation. This model describes the effect of gravitational consolidation on the material response and allows for a variation of density and yield stress with depth. A criterion for shear flow initiation is formulated and the ensuing motion is described. Velocity profiles for several slip conditions at the interface with the bedrock are given. The model is used to predict the observed field behavior of a natural slope (Villarbeney, Switzerland).

引用

页码：924 / 937

页数：14

共 27 条

[1] THE LANDSLIDE OF CORTES-DE-PALLAS, SPAIN [J].

ALONSO, EE ;

GENS, A ;

LLORET, A .

GEOTECHNIQUE, 1993, 43 (04) :507-521

[2]

ANCEY C, 1996, MECH COHES-FRICT MAT, V1, P385

[3]

[Anonymous], TRANSPORTATION RES B

[4]

Avitzur, 1968, METAL FORMING PROCES

[5] The Frank slide: a reexamination of the failure mechanism [J].

Benko, B ;

Stead, D .

CANADIAN GEOTECHNICAL JOURNAL, 1998, 35 (02) :299-311

[6] ON THE BEHAVIOR OF FINE MUD SUSPENSIONS [J].

COUSSOT, P ;

PIAU, JM .

RHEOLOGICA ACTA, 1994, 33 (03) :175-184

[7] Determination of yield stress fluid behaviour from inclined plane test [J].

Coussot, P ;

Boyer, S .

RHEOLOGICA ACTA, 1995, 34 (06) :534-543

[8] PLASTIC-FLOW THROUGH CONICAL CONVERGING DIES, USING A VISCOPLASTIC CONSTITUTIVE EQUATION [J].

CRISTESCU, N .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 1975, 17 (06) :425-433

[9] NONASSOCIATED ELASTIC VISCOPLASTIC CONSTITUTIVE-EQUATIONS FOR SAND [J].

CRISTESCU, N .

INTERNATIONAL JOURNAL OF PLASTICITY, 1991, 7 (1-2) :41-64

[10]

Cristescu N.D., 1998, TIME EFFECTS ROCK ME

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