大坝变形分析周期均线系统模型的应用研究

Research and application of the cycle moving average system model based on dam deformation analysis

针对大坝变形问题,提出周期均线系统模型,给出"沉降活跃度"的概念。以某抽水蓄能电站大坝为例,采用模型结合沉降活跃度进行单测点的变形分析,进而采用聚类分析方法绘制大坝的整体沉降活跃度分布图,结合各测点的累积沉降量值,直观地分析大坝的变形趋势,实现单测点与多测点相结合的分析模式。结果表明,应用周期均线系统模型配合沉降活跃度分布图,可较容易掌握大坝的变形信息,为大坝的变形分析提供一种行之有效的方法。

Aiming at the dam deformation issue,a cycle moving average system model is provided as well as the concept of settlement liveness. Long-term deformation monitoring data is carried out in a pumped storage power station,a single-point deformation analysis is used in this model combined with settlement liveness,and then the whole settlement liveness profile by clustering analysis is made. Considering the cumulative settlement value of every point the dam deformation trend is analyzed in an intuitive effect way. The analysis mode of combined single point with multi-point is realized. The result shows that deformation information of dam can be easily grasped by the application of cycle moving average systems model combined with the profile of settlement liveness, which provides an effective method for dam deformation analysis.