The seasonal wetting-drying cycles result in a down-slope creeping of the shallow soil layer, leading to progressive slope failure.

季节性干湿循环使得边坡浅层土体逐渐发生向坡下蠕变，以致边坡发生渐进累积破坏。

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This paper analysed the forming environment and the forming condition and the cause type of the shallow layer soft soil for Kunming basin.

对昆明盆地浅层软土的形成环境条件、成因类型及分布规律进行了分析。

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According to the failure mechanism of unsaturated expansive soil slope, the countermeasures to prevent shallow layer soil slide are suggested.

根据非饱和膨胀土边坡失稳的机理提出了防止边坡浅层滑动的对策措施。

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