摘要
坝体变形是原型监测的主要内容之一,它是分析大坝结构性态的重要依据。目前,位移数学模型都是对单个测点建立的,而不考虑测点之闻的相互关系。本文运用数学分析和坝工理论,提出建立坝体位移分布模型,将各点测值通过坐标变量有机地结合起来,得到位移分布与外荷载之间的数学关系式。最后结合某实际工程的原型观测资料,对建立分布模型的具体方法作了介绍。并建立了坝体挠曲线确定性模型,成果令人满意。
The protype observation of dam deformation is one of the main content. It is the important evidence for analysis of prototype structure behaviour of dam. Now, the matbematical model of dam displacemcmt is built up for single point and the relatimship among the deformations of observation points is omitted. In this paper, the space distribution model is studied from the mathematics analysis and the theory of dam, It is proposed to combine the deformation of each point with coordinate veriable and the mathematical expression between the distribution displacement and the load os obtained. In the light of the prototype observation data of a actual engineering, the method of building up the distribution model is introduced and the deterministic model of deflection curve is founded. The obtained result is satisfactory.
关键词
大坝
安全监控
坝体变形
原形监测
Prototype obdervation, Dam dcformation, Distribution model.
