基于北斗融合多源传感器技术的铁路路基稳定性监测研究

针对常规GNSS自动化监测和传统路基自动化监测技术的不足,提出了基于北斗融合多源传感器技术的铁路软基稳定性监测系统的架构及实现路径,并以北斗融合静力水准在软基沉降变形监测中的应用为例进行了现场试验.结果 表明:北斗融合静力水准沉降监测系统为路基监测提供了统一的时空信息基准,可满足铁路路基从建设到运营全生命周期对沉降监测...

Research on Railway Subgrade Stability Monitoring Based on Beidou Positioning Combining with Multi-source Sensor Technology

Aiming at the deficiency of conventional GNSS automatic monitoring and traditional roadbed automatic monitoring technology, the structure and realization path of railway soft foundation stability monitoring system based on Beidou positioning system combining with multi-source sensor technology have been proposed, and the application of Beidou positioning system along with static leveling in soft foundation settlement deformation monitoring is taken as an example to carry out field tests. The results show that Beidou positioning system combining with static leveling settlement monitoring system provides a unified spatio-temporal information reference for subgrade monitoring, which can meet the requirements of settlement monitoring timing, timeliness, effectiveness and accuracy in the whole life cycle from construction to operation of railway subgrade. The deep integration of multi-source monitoring data and collaborative review analysis can provide high-precision settlement data for measuring points outside and inside roadbed in real time. The Beidou 3D data can provide the horizontal displacement data of the top and foot of the slope, and provide monitoring and early warning for the stability of the subgrade slope. Real-time analysis and checking of base point data of each layer can be realized through the levelling line composed of Beidou monitoring station and static leveling point, which can avoid the transmission of relay error between layers and improve the effectiveness and accuracy of monitoring.