非饱和土含水量变化的定量预测 ,是岩土力学理论未来发展的一个重要方向 ,其应用前景十分广阔。通过分析在饱和土和非饱和土状态之间动态变化的地下水位升降带中的地基土含水量的变化规律和特征 ,从理论上推导出利用饱和度来定量预测含水量变化量的公式。预测成果可以应用于岩土工程的许多方面 ,具有十分重要的应用价值 Quantitative prediction of moisture content in unsaturated soils is an important direction for the future development of geomechanics theory, and its application prospect is very broad. Based on the analysis of the regularity and characteristics of the variation of soil moisture content in the groundwater level ascending and descending zone between saturated soil and unsaturated soil, the formula to quantitatively predict the variation of soil moisture content is derived theoretically. The prediction results can be applied to many aspects of geotechnical engineering and have very important application value