基于主成分分析-协整理论的土石坝安全监控模型研究
发布时间：2018-11-25 14:27
【摘要】：结合某土石坝垂直位移监测资料,针对非平稳时间序列分析时可能产生的"伪回归"问题,采用主成分分析方法和协整理论建立土石坝安全监控模型,并对监测点的变形性态进行分析。结果表明,所建立的模型系数显著,意义明确,克服了自变量间的多重共线性以及非平稳时间序列分析时的"伪回归"问题,在监测时段内,监测点垂直位移时效基本稳定。
[Abstract]:Based on the monitoring data of vertical displacement of a certain earth-rock dam, the safety monitoring model of earth-rock dam is established by using principal component analysis method and co-arrangement theory, aiming at the "pseudo-regression" problem that may arise in the analysis of non-stationary time series. The deformation behavior of monitoring points is analyzed. The results show that the established model has significant coefficients and clear meaning. It overcomes the problem of multiple collinearity among independent variables and "pseudo-regression" in the analysis of non-stationary time series. The vertical displacement time-effect of monitoring points is basically stable during the monitoring period.
【作者单位】： 西北农林科技大学水利与建筑工程学院;
【分类号】：TV698.1
，
本文编号：2356441
[Abstract]:Based on the monitoring data of vertical displacement of a certain earth-rock dam, the safety monitoring model of earth-rock dam is established by using principal component analysis method and co-arrangement theory, aiming at the "pseudo-regression" problem that may arise in the analysis of non-stationary time series. The deformation behavior of monitoring points is analyzed. The results show that the established model has significant coefficients and clear meaning. It overcomes the problem of multiple collinearity among independent variables and "pseudo-regression" in the analysis of non-stationary time series. The vertical displacement time-effect of monitoring points is basically stable during the monitoring period.
【作者单位】： 西北农林科技大学水利与建筑工程学院;
【分类号】：TV698.1
，
本文编号：2356441
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