击实粘性土分子扩散系数的测定

Determination of Molecular Diffusion Coefficient of Compacted Cohesive Soil

本文叙述了反映污染物在多孔材料中运移行为的对流扩散模型。根据以往的室内和野外试验结果，总结了各种岩土材料扩散系数的测定方法和具体数量范围。着重说明了一种新的分子扩散系数的测定方法及其试验装置和参数拟合过程，并报道了不同密实度的粘性土的试验结果。

This Paper describes a convection diffusion model for interpreting contaminant migration in porous materials.Methods to determine the diffusion coefficient for different geotechnical materials and their numerical rage are summarized based on the results of previous laboratory and field tests. A new method of determining molecular diffusion coefficients and the test results of different compacted cohe-sive soil are reported.