Abstract: Dashankou dam safety periodic inspection began in Sept.of 1999. It not only reviewed project level, flood control standard, engineering geological conditions, stability of dam body stress, but also rechecked construction quantify. This paper also analyzed the cause of gravity buttress cracks and its effects, seepage at foundation, dam deformation,dam operation as well. In combination with the filed inspection, the expert team has finished the periodic inspection. The dam is assessed as normal dam.?

摘要： 大山口大坝于1999年9月开始定检，对工程等级与洪水、工程地质条件、坝体稳定应力进行了复核，对施工质量进行了复查；对重力墩裂缝成因与影响进行了分析，对基础渗漏、大坝变形分析和大坝运行进行了分析总结，结合现场检查，定检专家组完成了大山口大坝定期检查工作，大坝被评为正常坝。