土壤胀缩特征研究进展

Research Progress of Soil Swelling Shrinkage

土壤胀缩现象是指土壤在干燥、湿润交替变化过程中所表现出的土壤容积随含水量改变的一种现象。本文就土壤容重测定方法、土壤容积变化表示方法和常用土壤收缩特征曲线模型等方面进行了总结和归纳,为干湿循环条件下土壤的胀缩特征研究提供参考。

Swelling and shrinking of soil refers to a phenomenon in which the soil volume changes with water content during theprocess of alternating dry and moist soils. In this paper, soil volume weight determination method, soil volume change expression methodand commonly used soil shrinkage characteristic curve model are summarized. It provides reference for the research of soil shrinkagecharacteristics under the condition of dry and wet cycle.