渗透各向异性土层的平面应变固结

艾智勇; 吴超

doi:10.3879/j.issn.1000-0887.2009.11.009

渗透各向异性土层的平面应变固结

doi: 10.3879/j.issn.1000-0887.2009.11.009

艾智勇,
吴超

同济大学地下建筑与工程系,岩土及地下工程教育部重点实验室,上海 200092

基金项目: 国家自然科学基金资助项目(50578121)

详细信息

作者简介:
艾智勇(1966- ),男,江西余江人,副教授,博士(联系人.Tel:+86-21-65982201;Fax:+86-21-65985210;E-mail:zhiyonga@itongj.iedu.cn).

中图分类号: TU43;O343
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出版历程
- 收稿日期: 2008-12-12
- 修回日期: 2009-09-30
- 刊出日期: 2009-11-15

Plane Strain Consolidation of Soil Layer With Anisotropic Permeability

Department of Geotechnical Engineering and Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, P. R. China

摘要

摘要: 提出了一种有效的可供选择的分析方法，来研究渗透各向异性多孔弹性土层的平面应变固结问题．从饱和多孔弹性土体的控制方程出发，建立了在Laplace-Fourier变换域内，土层中地基表面(z=0)和深度z处基本变量之间的关系．结合边界条件，得到了变换域内渗透各向异性有限土层的平面应变Biot固结问题的精确解．通过Laplace-Fourier逆变换，得到了物理域内的真实解．平面应变Biot固结土层的数值分析结果显示：渗透各向异性对土层的固结行为，有比较显著的影响
- 平面应变固结 /
- 有限土层 /
- 渗透各向异性 /
- Laplace-Fourier变换
Abstract: An alternative analytical technique to study a plane strain consolidation of a poroelastic soil by taking into account the anisotropy of permeability was presented. From the governing equations of a saturated poroelastic soil, the relationship of basic variables for a point of a soil layer was established at between the ground surface (z=0) and the depth z in the LaplaceFourier transformed domain. Combined with the boundary conditions, an exact solution was derived for plane strain Biot's consolidation of a finite soil layer with anisotropic permeability in the transform domain. Numerical inversions of the Laplace transform and the Fourier transform were adopted to obtain the actual solution in the physical doma in. Numerical results of plane strain Biot's conso lidation for a single soil layer shows that the an isotropy of perm eability has great in fluence on the consolidation behavior of the soils.
- plane strain consolidation /
- a finite soil layer /
- anisotropic permeability /
- LaplaceFourier transform

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参考文献(23)

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