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以武广铁路客运专线实测数据为基础,分析了超载预压路基沉降规律及特征,总结了与之相适应的评估技术要求和经验。在此基础上,分别采用有效应力面积比法和基于实测数据回归拟合的分析方法,对超载预压路基的卸载时机和工程沉降进行分析,为铁路客运专线超载预压路基的沉降变形评估提供一条有效的途径。
Based on the measured data of Wuhan-Guangzhou Passenger Dedicated Line, the settlement regularities and characteristics of overloaded preloading embankment are analyzed, and the technical requirements and experiences of assessment are summarized. On this basis, the effective stress area ratio method and the regression fitting method based on measured data are respectively used to analyze the unloading timing and engineering settlement of overloaded preloading embankment, providing the assessment for settlement deformation of overloaded preloading embankment in railway passenger dedicated line An effective way.