谢 江,赖华泉

土体崩解性受矿物组分及胶结结构的影响，土体在水化作用下丧失胶结结构后，矿物组分的不同决定其泥化崩解的形式及速率，主要在于土体内部矿物形态的不一致、可溶及易软化矿物、矿物的转换、黏土矿物膨胀等,从而产生的微孔隙和微裂纹，毛细管压力和气体压力的增加导致微孔隙和微裂纹的发展与贯通，最终导致土体崩解离体。

矿物组分；土体崩解；孔隙

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