重力坝多测点变形监控模型的研究及应用

目前国内建立大坝变形监控模型多以单测点为基础，由于外界荷载对大坝变形的作用是整体性的，单测点模型只反映了单个测点的变化，没考虑监测量的空间分布因素，不能反映监测量的内在机理，因而有一定局限性。多测点变形模型引入了空间坐标变量，将原单测点模型发展到线和面的分布模式，弥补了单测点变形模型的不足。以空间多测点变形模型进行实例计算、分析，并用单测点模型检验多测点模型的效果，所建的模型符合工程实际要求。

RESEARCH ON THE MULTI-MEASURING POINT MODELS OF DEFORMATION MONITORING FOR GRAVITY DAMS AND ITS APPLICATION

Because the effect of louding factors on deformation of gravit dam is whole, the models of single-measuring point only reflect change of partial point, and consider not the spacial distribution factor of monitoring quantity as well as its interior structure, thus have some limitations. The deformation models of multi-measuring points bring in coordinate variable, develop the single-measuring into distributing models of line and surface, and could compensate the inadequacy of single-measuring point models. The paper mainly deals with deformation models of multi-measuring point, calculates and analyzes the dam examples. Testing the results with single measuring point models, it is shown that the multi-measuring point models, as built, correspond with the practical requirements of project.