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结合遂渝铁路客运专线工程实践,设计了以级配碎石为基床表层,以A、B组填料为基床底层的室内大比例基床模型试验。主要研究在列车动荷载作用下,在不同基床表层厚度(0.4 m基床表层和0.3 m基床表层)及降雨(0.3 m基床表层)条件下,基床的动应力、动变形和加速度的变化规律,并进行了比较分析。
Combined with the engineering practice of Su-Yu Railway Passenger Dedicated Line, this paper designed a large-scale indoor base-bed model test with graded broken stone as the basement bed, Group A and B packing as the basement. The main research is that the dynamic stress, dynamic deformation and acceleration of the bed under the dynamic loading of the train under the conditions of different bed surface thickness (0.4 m bed surface and 0.3 m bed surface) and rainfall (0.3 m bed surface) The changes of law, and conducted a comparative analysis.