川南城际高速铁路路基变形监测设计探讨

在高速铁路的建设及运营管理过程中,路基的安全保障及健康状态的监测非常值得关注。路基变形对高速铁路的行车安全影响大,常规的监测模式不能满足高速铁路运营安全的要求。本文针对川南地区特定的水文地质条件和铁路路基周边复杂的建设影响因素,在铁路设计阶段,对路基变形监测进行了系统地设计,重点探讨了采空区、弱膨胀性红层泥岩区、受既有铁路交叉影响地段等高速铁路路基安全监控系统的设计,可为类似工程建设提供技术参考。

A Study on Design of Subgrade Deformation Monitoring for South Sichuan Intercity High-speed Railway

It is well worth paying attention to the safety guarantee and the monitoring of the health status of subgrade during the construction,operation,and management of the high-speed railway.Subgrade deformation has a great impact on the operation safety of the high-speed railway,and the conventional monitoring mode cannot meet the requirements of the operation safety of the high-speed railway.Based on the specific hydrogeological conditions in South Sichuan and the complex construction impact factors around the railway subgrade,this paper logically designs the deformation monitoring of subgrade during the railway design stage and emphatically discussed the design of the safety monitoring system for the high-speed railway subgrade in areas such as goaf,the area of weakly swelling red-bed mudstone and sections affected by the intersection of existing railways.It can provide technical references for similar engineering construction.