Numerical study of the effect of preloading on undrained bearing capacity

被引：4

作者：

Zdravković, L. ^{[1
]}

Potts, D.M. ^{[2
]}

Jackson, C. ^{[3
]}

机构：

[1] Dept. of Civil/Environmental Eng., Imperial College, London

[2] Analytical Soil Mechanics, Dept. of Civil/Environmental Eng., Imperial College, London

[3] Ove Arup and Partners, London

来源：

International Journal of Geomechanics | 2003年 / 3卷 / 01期

关键词：

Bearing capacity; Failure modes; Footing; Loads; Numerical analysis;

D O I：

10.1061/(ASCE)1532-3641(2003)3:1(1)

中图分类号：

学科分类号：

摘要：

In practice the situation often arises where extra loaf needs to be added onto existing foundations. This can arise due to the installation of additional equipment in a building, or to the construction of new floors, etc. It also arises in a situation where old foundations are used for a new building, a practice likely to become increasingly popular in the future. If the foundation soil is clay, then its undrainde strength would have increased with time due to the dissipation of exess pore water pressures generated during the initial determine the amount of new load that can be applied. This paper provides guidelines to answering this question through a numerical study of preloaded surface footings on both soft and stiff clay foundations. Additional information resulting from this study addresses the footing failure mechanisms, as well as the effect of a surface crust in soft clay on both the bearing capacity and the failure mechanism. © ASCE.

引用

页码：1 / 10

页数：9

共 14 条

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