非饱和土水分扩散力学在膨胀土中,非饱和水分的流动,是由粘土的裂隙组织和块体结构所控制。这些因素,必然使水分流动表现为两个阶段的特性:(1)在裂隙中流动,接着(2)扩散到块体、泥块和土的自然结构体中。在这些裂隙土体系中,其流动的数值,已被研究得出,并且大致地为现场渗透系数的试算法所证实。 Moisture Diffusion Mechanics of Unsaturated Soils In expansive soils, the flow of unsaturated moisture is controlled by the fracture structure and block structure of the clay. These factors necessarily cause the water flow to behave as two phases: (1) Flow in the fracture, and (2) Diffusion into the natural structure of blocks, mud blocks, and soil. In these fractured soil systems, the values ​​of the flow have been studied and roughly confirmed by the test algorithm of the on-site permeability coefficient.