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武广客运专线设计为350 km/h的无砟轨道,为保证运行期间系统安全、乘客舒适,其线性的高平顺和高稳定性至关重要。因此路基作为铁路轨道的基础,必须具有一定的强度,同时还要求刚度大、稳定性好和耐久性强。由于武广客运专线沿线存在分布较广、性质相对稳定的泥质粉砂岩,具备了进行物理改良试验及施工工艺研究的有利条件,在实验和技术人员的精心策划和研究下,通过科学、规范的实验,得到了与设计标准要求一致的数据,确定了在路基填料施工中的控制要素和检验条件,为路基施工提供了技术保障,能够保证运营条件下将线路轨道的设计参数维持在要求的精度范围内,满足高速行车需要。
The design of the Wuhan-Guangzhou Passenger Dedicated Line is a 350 km / h ballastless track. To ensure system safety and passenger comfort during operation, the linear high smoothness and high stability are of utmost importance. Therefore, as the foundation of the railway track, the subgrade must have certain strength, meanwhile, it requires rigidity, good stability and durability. Due to the existence of broadly distributed and relatively stable muddy silt sandstone along the Wuhan-Guangzhou Passenger Dedicated Line, it possesses the favorable conditions for physical improvement test and construction technology research. Through the careful planning and research by experimental and technical personnel, through scientific and standardized The experimental data obtained in accordance with the requirements of the design standards and the control elements and test conditions in the construction of roadbed filler were determined to provide technical support for roadbed construction and to ensure that the design parameters of the track under the operation conditions are maintained at the required Accuracy within the range to meet the needs of high-speed traffic.