Abstract: Analyzed the influence factors of soil disintegration under water from point of view of microcosm, it is pointed out that moisture and level of compaction are two main parameters controlling soil disintegration. With SOIL DISINTEGRATION INSTRUMENT developed by Li Jia-chun, we finished series of experiments of compacted loess disintegration. It was presented that disintegration rate decreased with the moisture and level of compaction increasing until the maximal disintegration moisture. Soil disi

Key words: soil disintegration, level of compaction, moisture, soil erodibility

摘要： 笔者从微观角度分析了土的崩解影响因素，指出压实土的含水量、压实度是影响崩解的主要因素。通过自 行研制的崩解仪进行了压实黄土浸水崩解实验，分析归纳了压实度、含水量对崩解性的影响规律，即崩解速度随 压实度增大、含水量增加而减小，并存在最大崩解含水量。土的崩解性反映了土的可蚀性，在工程水土保持研究 中可用崩解速度作为土的可蚀性评价指标

关键词: 崩解, 压实度, 含水量, 可蚀性