饱和软土地基弹塑性固结沉降研究

On Elasto-Plastic Consolidation Settlement of Saturated Soft Clay

软粘土孔隙比大、渗透率低、压缩性和含水量高,这种特性决定了它的变形沉降受到包括应力历史、应力路径、固结压力、软土特性等诸多因素的影响。本文引入基于混合物理论的两相多孔介质理论描述饱和软土的弹塑性固结沉降过程。该理论具有理论推理严密和数学论证严谨的特点,能够充分考虑固结过程中的水土耦合作用。

The specific properties of soft clay are characterized by higher void ratio, lower permeability and higher compressibility, the consolidation settlement of soft clay is affected by the imposed stress history, the stress paths, the consolidation pressure and the soil properties. In this paper, the porous media theory based on the mixture theory was applied in the study on the consolidation settlement of soft clay, which was more rigorous than the conventional consolidation settlement theory and the coupling between soil and water can be taken into account in the analysis.