考虑饱和度变化的一维电渗固结模型

发布时间：2018-05-10 17:04

本文选题：电渗固结 + 非饱和　；参考：《岩土工程学报》2017年08期

【摘要】：现有电渗固结理论和数值模型通常基于饱和土假设,与实际情况有差距。基于分段线性差分法,建立一种考虑饱和度变化的一维电渗固结模型UEC1。该模型考虑了土体电渗固结过程中饱和度的变化及土性参数的非线性关系,并编制了FORTRAN计算程序。UEC1在考虑饱和度变化情况下的计算结果与实测结果吻合。结合算例,给出了考虑饱和度变化情况下的电渗固结数值解,分析了固结过程中孔隙水压、孔隙气压、饱和度及沉降量随时间的变化规律,其中残余饱和度对土体电渗固结沉降量的影响显著。
[Abstract]:The existing electroosmotic consolidation theory and numerical model are usually based on saturated soil hypothesis, which is different from the actual situation. Based on the piecewise linear difference method, a one dimensional electroosmotic consolidation model UEC1 is established, which considers the change of saturation. The model takes into account the variation of saturation in the process of soil electroosmotic consolidation and the nonlinear relation of soil parameters, and the calculation results of FORTRAN program, UEC1, are in good agreement with the measured results under the condition of considering the change of saturation. The numerical solution of electroosmotic consolidation considering the change of saturation is given, and the variation law of pore water pressure, pore pressure, saturation and settlement with time during consolidation is analyzed. The residual saturation has a significant effect on the settlement of soil electroosmotic consolidation.
【作者单位】：天津市软土特性与工程环境重点实验室;天津城建大学土木工程学院;阿德莱德大学;
【基金】：国家自然科学基金项目(51608351,51278327) 天津市自然科学基金项目(13JCQNJC07400)
【分类号】：TU472

【相似文献】