以往在分析地下水对滑坡影响过程中 ,一般只考虑水的力学效应 ,而忽略了水质对土体的化学效应 ,但已有的工程实践表明 ,受污染地下水对土质滑坡的变形破坏有重要影响。本文从受污染地下水对滑坡土质的物理、化学性质影响机理着手 ,进一步分析其对土体力学性质的影响 ,得出了受污染地下水会使土质滑坡朝不稳定方向发展的结论。 In the past, when analyzing the influence of groundwater on landslide, only the mechanical effect of water was generally considered while the chemical effect of water on the soil was neglected. However, the existing engineering practice shows that the contaminated groundwater has an important influence on the deformation and failure of soil landslides. This paper starts from the mechanism that contaminated groundwater affects the physical and chemical properties of landslide soil and further analyzes its influence on the mechanical properties of soil. It concludes that the contaminated groundwater will make soil landslides move toward instability.