Failure and dilatancy properties of sand at relatively low stresses

被引：59

作者：

Lancelot, Laurent ^{[1
]}

Shahrour, Isam ^{[1
]}

Al Mahmoud, Marwan ^{[1
]}

机构：

[1] Ecole Polytech Univ Lille, CNRS, UMR8107, Lab Mecan Lille, F-59655 Villeneuve Dascq, France

来源：

JOURNAL OF ENGINEERING MECHANICS-ASCE | 2006年 / 132卷 / 12期

关键词：

dilatancy; friction; localization; triaxial test; isotropy; slope stability; liquefaction;

D O I：

10.1061/(ASCE)0733-9399(2006)132:12(1396)

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Analysis of geotechnical problems concerned by low confinement such as design of shallow foundations and analysis of slope stability and soil liquefaction requires modeling of the soil behavior at low stresses. This note includes a laboratory study of the behavior of Hostun RF sand at low cell pressure (20-50 kPa). Isotropic and triaxial compression drained tests were performed. Drained tests show that both failure and dilatancy angles at low stresses are stress dependent. The contractive/dilative phase transition is observed for loose sand, which may result from the overconsolidated nature of this sand for low values of cell pressure.

引用

页码：1396 / 1399

页数：4

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