滇东南地区是云南省岩溶发育区，水库工程建设多选择于泥岩、页岩等碎屑岩区。泥岩区建设水利工程，特别是重力坝建设，面临的工程地质问题较突出，对坝体安全稳定性影响较大。本文通过对滇东南某水库建设项目为例，分析了工程区工程地质条件，采用材料力学法和有限单元法，对泥岩区修建重力坝可能产生的工程地质问题进行分析，评价了坝体稳定性，对可能产生的坝体拉裂及坝基渗透变形破坏应加强监测，并采取相应的工程处理措施。%Southeast Yunnan is the karst development area. Most reservoirs are located in the mudstone and shale clastic rock area. Construction of water conservancy projects, especially gravity dam construction, in mudstone area, faces many engineering geological problems, which influences the stability of the dam safety. Taking a water conservancy project as an example in southeast Yunnan, the paper analyzes the existing engineering geological conditions; it analyzes the possible engineering geological problems in construction of gravity dam at mudstone area by using material mechanics method and finite element method, evaluates the stability of the dam body,For the dam body cracking and seepage deformation damage in dam, we should strengthen monitoring, and take the corresponding engineering treatment measures.
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