【摘要】：結(jié)合某土石壩垂直位移監(jiān)測(cè)資料,針對(duì)非平穩(wěn)時(shí)間序列分析時(shí)可能產(chǎn)生的"偽回歸"問題,采用主成分分析方法和協(xié)整理論建立土石壩安全監(jiān)控模型,并對(duì)監(jiān)測(cè)點(diǎn)的變形性態(tài)進(jìn)行分析。結(jié)果表明,所建立的模型系數(shù)顯著,意義明確,克服了自變量間的多重共線性以及非平穩(wěn)時(shí)間序列分析時(shí)的"偽回歸"問題,在監(jiān)測(cè)時(shí)段內(nèi),監(jiān)測(cè)點(diǎn)垂直位移時(shí)效基本穩(wěn)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.
【作者單位】： 西北農(nóng)林科技大學(xué)水利與建筑工程學(xué)院;
【分類號(hào)】：TV698.1
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本文編號(hào)：2356440