关联积分用于建筑物沉降分析预报的研究  

Prediction of building subsidence using correlation integral method

作　　者：杨荣华[1,2] 李昭[2] 张宁[3] 

机构地区：[1]闽江学院地理科学系,福建福州350108 [2]武汉大学测绘学院,湖北武汉430079 [3]闽江学院物理学与电子信息工程系,福建福州350108

出　　处：《闽江学院学报》2009年第2期103-106,共4页Journal of Minjiang University

基　　金：福建省自然科学基金资助项目(2008J0245)

摘　　要：建筑物的沉降变化过程具有强烈的非线性,混沌特征参数可以对非线性系统进行评估和预测,基于此提出了一种新的建筑物沉降分析预报方法——关联积分法,并利用该算法对小学建筑物的沉降进行分析,认为关联积分随时间变化曲线出现陡降处为建筑失效时刻,则得到的失效时间较实际观察到的失效时间提前.The strong non-linear property of the building subsidence can be researched by using chaos theory. A new technique for analysis and prediction of building subsidence is presented in the paper, which is called correlation integral method. When it is used to predict the elementary school building sub- sidence, the sudden drop in the variation curve of correlation integral denotes the building＇s failure time. From this, we can draw the conclusion that the failure time we got is ahead of the time that the building actually fails.

关 键 词：混沌 相空间重构 关联积分 建筑物沉降 分析预报 

分 类 号：P228.4[天文地球—大地测量学与测量工程]