Consolidation analysis for unsaturated soils
Consolidation analysis for unsaturated soils
复制标题
DOI：
10.1139/t04-017
复制
发表时间：
2004-08
影响因子：
3.6
通讯作者：
E. Conte
中科院分区：
文献类型：
--
作者：
E. Conte
本文研究了气相和水相连续时非饱和土的多维固结问题。根据D.G. Fredlund和他的同事提出的方法，首先推导了控制耦合和非耦合固结的微分方程，然后进行了数值求解。求解过程依赖于利用傅里叶变换对场方程的变换。这种转换的效果是将二维或三维问题简化为只涉及单个空间维度的问题。变换后的方程用一种利用简单一维元素的有限元近似法求解。一旦得到变换域中的解，就可以通过傅里叶变换的反求得到实际的解。时间积分过程以逐步形式表示。研究结果指出了非饱和土固结的几个方面。此外，它是……
This paper deals with the multidimensional consolidation of unsaturated soils when both the air phase and water phase are continuous. Following the approach proposed by D.G. Fredlund and his coworkers, the differential equations governing the coupled and uncoupled consolidation are first derived and then solved numerically. The solution is achieved using a procedure that depends on the transformation of the field equations by using the Fourier transform. This transformation has the effect of reducing a two- or three-dimensional problem to a problem involving only a single spatial dimension. The transformed equations are solved using a finite element approximation that makes use of simple one-dimensional elements. Once the solution in the transformed domain is obtained, the actual solution is achieved by inversion of the Fourier transform. The time integration process is formulated in a stepwise form. Results are presented to point out some aspects of the consolidation in unsaturated soils. Moreover, it is...