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回归分析法处理隧道监控量测数据,被普遍应用于预测隧道施工过程中围岩的变形及其发展趋势。回归分析法的关键在于选择与优化回归模型,该文提出采用灰色局势决策法选择回归模型,采用修正系数优化所选择的模型,并以某隧道拱顶下沉监测数据为算例,验证了该方法的可行性与优异性。该方法较好地解决了以往回归模型选取方法———通过计算、比较相关系数、标准误差等值主观判定的不足,可推广至其他隧道施工现场监控量测数据的分析处理中。
Regression analysis of tunnel monitoring measurement data is widely used to predict the deformation of the surrounding rock during the tunnel construction and its development trend. The key of regression analysis is to choose and optimize the regression model. In this paper, the gray decision method is adopted to choose the regression model and the correction coefficient to optimize the chosen model. The tunnel crown monitoring data is used as an example, The feasibility and excellence of the method. This method solves the problem of selecting the regression model well in the past --- subjectively judging by calculating and comparing the correlation coefficient and standard error, which can be extended to the analysis and processing of monitoring measurement data of other tunnel construction sites.