一、前言 1.测定目的土壤在水中受重力影响自然沉降,成为堆积状态。从土壤结持性来说,这种堆积状态,是在土壤—水分系统中由液体转变为塑性体的分界状态。除水铝英石外,水中沉降容积和粘粒总表面积之间呈正比例关系。由此可以预知,决定土壤的水中沉降容积的基本因素是粘粒含量和矿物组成。 I. Introduction 1. Determination of the purpose of the soil in the water by the gravity of the natural settlement, a pile of state. In terms of soil sustainability, this build-up is the demarcation of the liquid-to-plastic body in the soil-water system. In addition to the allophane, the sedimentation volume in water is proportional to the total surface area of ​​the clay particles. From this it can be predicted that the basic factors determining the sedimentation volume of water in the soil are clay content and mineral composition.