贵州省六盘水市(中国.凉都),岩溶地貌类型齐全,发育典型,山峦众多,延绵起伏,沟壑纵横,深履险峻。受岩溶地貌影响,地表河网与地下河网均有发育,互有衔接,且反复出现。采用泥浆护壁冲孔灌注桩施工技术,对该地区地基处理中,解决了岩溶节理缝隙极为发育、岩石风化破碎、孤石众多等复杂条件下的基桩施工。 Liupanshui City, Guizhou Province (China. Liangdu), karst landform types are complete, typical of the development, many mountains, undulating, ravines aspect, deep risk steep. Affected by the karst landform, the surface river network and the underground river network have their own development, which are interconnected with each other and appear repeatedly. In the foundation treatment of this area, the construction of foundation piles under extremely complex conditions such as extremely fractured karst joints, weathering and crushing of rocks, numerous boulders and so on, is solved by adopting the construction technology of perforated and cast-in-place piles with slurry retaining walls.