【摘要】 在湿陷性黄土层及上部处理加固层之间放置砂土夹层来防止或减小水的下渗量和下渗速度以减小湿陷性黄土层浸水沉陷量的发展，是基于土水势原理而提出的一种地基处理新途径。本文作者在三轴仪应力条件下进行了实验研究，同样证实了砂夹层对其湿陷性黄土的阻水减沉效应。本文扼要介绍这种三轴试验的成果，并对其机理及规律性进行了一些讨论。更多还原

【Abstract】 A new way for foundation improvement which is to construct a sand layer between the improved layer and the collapsible loess,in accordance with the soil-water potential principle will preventor minimize the quantity and speed of water pormeating through the soil.Therefore the collapse settement of loess will be decreased. The author achieved some good experimental results with triaxial apparatus. This paper describes the tested results and discusses its mechanism and regularity。更多还原