大坝安全监测的多测点位移向量模型

Deformation Vector Distribution Model in Dam Safety Monitoring

综合多个测点的位移向量观测信息建立多测点位移向量统计模型 .在探讨该模型的因变量构成、数据信息来源及自变量的获得方式后 ,确定了该类模型的完整构造及简化形式 ,采用多因变量逐步回归方法建立模型 .这种模型既能反映位移大小、方向随水压、温度和时间变化的规律 ,又能描绘位移向量在区域内的分布情况 ,适用范围很广 。

Using deformation vector's observed data of many survey points, this paper established the deformation vector distribution model. This model's conformation was determined after discussing dependent variable's composing and independent variables' shape. Multi-dependent variable stepwise regression was used to establish it. This kind of model can describe not only deformation vector's change regulation with water pressure, temperature and time, but also deformation vector's distribution. It is a useful new way to analyse dam's deformation behavior in the whole and can be used widely in the practice of dam safety monitoring and analysis.