大坝安全监测的位移分布数学模型

Mathematical model of displacement distribution for dam monitoring

目前应用于大坝安全监测的数学模型都是对某一单个测点建立的,不考虑测点间的相互关系。本文提出了建立坝体位移分布数学模型的方法。这种模型同时利用多个测点的测值序列,直接建立位移分布(例如挠度曲线,坝顶位移分布曲线等)与外部荷载之间的数学关系式。本文通过实例介绍了建立坝体位移分布统计模型、混合模型的具体方法,并对其效果及有关问题进行了讨论。

Mathematical models are currently established only for single measurement point in dam monitoring, they could not formulate the relations between a number of measurement points.In this paper methods are developed to establish mathematical models of displacement distribution. By using the data taken from various measurement points, displacement distribution (such as deflection curve or displacement distribution curve at the top of dam) can be expressed directly by mathematical formula as a function of external loads.Examples are presented to illustrate the approches in establishing sta-tistcal models or hybrid models of displacement distribution of dams.The effectiveness of the proposed model is described and some relevant problems are discussed.