Abstract

During the drying process, an initially saturated clay deforms mainly due to the loss of water. It causes clay shrinkage that represents one of the fundamental reasons of cracking by desiccation. It is of great interest to understand the desiccation process in such complex soils. However, the main point is that many properties of the material, such as water content distribution, displacement, strain and stress fields, remain difficult to reach by experimental approach only. Numerical simulations may help estimate these variables, and reinforce in a significant way the experimental measurements. The proposed method of analysis allows to understand more deeply the process of drying in clays including shrinkage, crack initiation and finally, crack network development. This research, combining numerical simulations and laboratory tests allows to go further in investigating the drying phenomenon in remolded and initially saturated kaolinitic clay.

摘要

在干燥过程中，最初饱和的粘土主要由于失水而变形。它引起的粘土收缩是干燥开裂的根本原因之一。了解这种复杂土壤中的干燥过程具有很大的意义。然而，主要的一点是材料的许多特性，如含水量分布、位移、应变和应力场，仅通过实验方法仍然难以达到。数值模拟可能有助于估计这些变量，并以显着的方式加强实验测量。所提出的分析方法可以更深入地了解粘土的干燥过程，包括收缩、裂纹萌生以及最终裂纹网络的发展。这项研究，