CRACKING IN DRYING SOILS

被引：425

作者：

MORRIS, PH ^{[1
]}

GRAHAM, J ^{[1
]}

WILLIAMS, DJ ^{[1
]}

机构：

[1] UNIV MANITOBA,WINNIPEG R3T 2N2,MANITOBA,CANADA

来源：

CANADIAN GEOTECHNICAL JOURNAL | 1992年 / 29卷 / 02期

关键词：

CLAY; CRACKS; CRUST; SHEAR STRENGTH; SOIL SUCTION; TENSILE STRENGTH; UNSATURATED SOIL; WEATHERING;

D O I：

10.1139/t92-030

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Cracking in soils that are undergoing drying is controlled by soil suctions and by soil properties such as compression modulus, Poisson's ratio, shear strength, tensile strength, and specific surface energy. The paper reviews the occurrence and morphology of cracks in dry-climate regions of Australia and Canada. After reviewing the behaviour of unsaturated soils and the mechanics of cracking, solutions are developed based on (i) elasticity theory, (ii) the transition between tensile and shear failure, and (iii) linear elastic fracture mechanics. The solutions are compared and related to crack depths observed in the field.

引用

页码：263 / 277

页数：15

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