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高速铁路以其运营全天候、快捷准时、安全舒适、运输量大、能源消耗低、污染小等特点引起了世界各国的广泛认同与重视,世界高速铁路的运营速度正朝着越来越快的方向发展。为满足列车高速、平稳、安全运行的要求,高速铁路的设计标准已越来越高,质量控制指标及施工要求也越来越高,路桥过渡段作为刚性桥台与柔性路堤的结合部位,在结构上是塑性变形和刚度的突变体。因此,必须从过渡段的地基条件、软基处理方法、填料选择、压实标准、质量检测上采取措施,以减少两者之间的塑性变形差,实现平稳过渡。
High-speed railway has been widely recognized and valued by all countries in the world due to its operation all-weather, fast timeliness, safety and comfort, large amount of transportation, low energy consumption and small pollution. The world’s high-speed railway is operating in a faster and faster direction development of. In order to meet the requirements of high-speed, smooth and safe operation of trains, the design standards of high-speed railway are getting higher and higher, and the quality control indexes and construction requirements are also getting higher and higher. As the combination of rigid abutment and flexible embankment, Structure is a plastic deformation and stiffness of mutants. Therefore, measures must be taken from the foundation conditions of the transitional section, soft foundation treatment methods, filler selection, compaction standards and quality inspection so as to reduce the plastic deformation difference between the two so as to achieve a smooth transition.