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一、问题提出如何正确评价拱坝坝肩稳定性,是一个很复杂的问题。总结以往的实践认为:拱坝破坏的主要形式是坝基内软弱面的滑移失稳。如在坝肩存在明显软弱滑裂面的坝址建造拱坝,即存在拱座稳定性问题。拱坝稳定性试验和研究的目的,主要在于验证两坝肩的稳定性及找出坝肩内抗滑稳定的薄弱部位。生产设计单位委托进行稳定性研究的项目,总难免在坝址存在着
First, the question put forward How to correctly evaluate the stability of arch dam abutment is a very complicated issue. Summary The past practice holds that the main form of arch dam damage is the sliding instability of the weak surface in the dam foundation. If an arch dam is found at a dam site with obvious weak slip surface, the stability problem of the abutment exists. The purpose of the stability test and research of the arch dam is mainly to verify the stability of the two abutments and to find out the weak parts of the antiskid stability in the abutment. Projects commissioned by the production design unit for the stability study will inevitably exist at the dam site