非饱和土水力和力学性状耦合的弹塑性模型研究进展

对非饱和土力学的研究现状进行回顾，在总结前人研究成果并结合当前研究趋势的基础上介绍了能耦合模拟非饱和土水力和力学性状的弹塑性模型。该模型综合考虑到了饱和度对应力应变关系和强度以及变形对水力性质的交叉影响。给出了将耦合弹塑性模型应用于非饱和土体固结问题中进行有限元数值计算的公式。

Advances in research on elastoplastic simulation of coupled hydraulic and mechanical behaviors of unsaturated soils

An introduction was given to the elastoplastic model for simulating the coupled hydraulic and mechanical behaviors of unsaturated soils based on a review of current research on unsaturated soils and summary of the former achievements and the trend of research. In this model, the effect of soil saturation on the stress-strain relationship and the effects of deformation of soils on hydraulic behaviors were taken into account. Then, formulas for finite dement analysis of consolidation of unsaturated soils based on the coupled elastoplastic model were given.