The initial state of the consolidated specimens can be classified into dilative and contractive in the light of the soil state relative to the critical state line . the failure mechanisms of both dilative and contractive soils under the penetration of rainfall are analyzed 根据斜坡土体状态在临界状态线的相对位置将土体分为剪胀和剪缩两种类型，并对这两种土体在暴雨条件下的破坏机理和破坏过程进行了分析。
