Abstract：Research purposes：The subgrade deformation of high-speed railway must be controlled very strictly because of the high train speed on the railway and high technical standard required by the railway. Since many factors synthetically contribute to the deformation, so it is very important to synthetically and accurately analyze the factors involved and predict the time series law to the subgrade settlement.
Research conclusions：The multivariate nonlinear regression equation is established with the foundation of layer-summation method to illustrate the eternal relations among the time, settlement deformation, filling height, elastic modulus, and thickness of the compressed layer. Whats' more, the methods of multiple non-linear regression analysis of the time series data are given, and the applications show the methods can be wide used.
胡荣光. 基于分层总和法的路基沉降时序规律多元非线性回归分析[J]. 铁道工程学报, 2009, 26(3): 7-10.
HU Rong-guang. Multivariate Nonlinear Regression Analyses of Time Series Law to Subgrade Settlement of High-speed Railway Based on the Foundation of Layer-summation. 铁道工程学报, 2009, 26(3): 7-10.
2009, Vol. 26 
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