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为实现时速350 km的无砟轨道客运专线运行的高平顺性、高舒适性和高安全性,控制结构工后沉降满足不大于15mm,各种结构物过渡段的不均匀沉降差不大于5 mm,需构建沉降变形观测与评估管理体系,制定严密、科学的沉降观测实施方案和建立科学、快捷、系统的分析评估系统,保证观测数据和预测工后沉降的准确性、可靠性、连续性,合理确定无砟轨道开始铺设时间,确保无砟轨道铺设质量。
In order to realize the high smoothness, high comfort and high safety of the ballastless track passenger dedicated line running at a speed of 350 km per hour, the post-construction settlement of the control structure satisfies no more than 15mm and the uneven settlement difference in the transitional sections of various structures is not more than 5mm , It is necessary to construct a settlement and deformation monitoring and evaluation management system, formulate a rigorous and scientific implementation plan for settlement observation and establish a scientific, efficient and systematic analysis and evaluation system to ensure the accuracy and reliability of the observation data and the prediction of post-construction settlement, It is reasonable to determine the laying time of the ballastless track and ensure the quality of the ballastless track.