Potential improvements of design parameters by taking block samples of soft marine Norwegian clays

被引：15

作者：

Berre, Toralv ^{[1
]}

Lunne, Tom ^{[1
]}

Andersen, Knut H. ^{[1
]}

Strandvik, Stein ^{[1
]}

Sjursen, Morten ^{[1
]}

机构：

[1] Norwegian Geotech Inst, NO-0806 Oslo, Norway

来源：

CANADIAN GEOTECHNICAL JOURNAL | 2007年 / 44卷 / 06期

关键词：

soft clays; sample disturbance; consolidation procedures; stress-strain-strength behaviour;

D O I：

10.1139/T07-011

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Undrained triaxial and direct simple shear tests on samples reconsolidated to the in situ effective stresses and oedometer tests have been carried out on standard piston tube and on high quality block samples from 12 deposits of soft Norwegian marine clays. Based on the results of a selected number of these tests, empirical procedures for estimating the effect of sample disturbance have been developed. These procedures can be used to show the potential increase that may be achieved in undrained shear strength and apparent preconsolidation stress by taking high quality block samples. Suggestions are also given regarding corrections for rate of loading and temperature effects; as well, examples are given regarding possible consequences for design if higher strengths are utilized.

引用

页码：698 / 715

页数：18

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