施工过程中铁路线路地表形变监测技术初探

SURFACE DEFORMATION MONITORING TECHNOLOGY OF RAILWAY LINES DURING CONSTRUCTION

施工过程中铁路线路地表形变监测是确保线路安全、稳定运营的关键。为解决当前传统地面测量技术在监测中面临人力成本高、效率低等问题。首先分析了传统地面测量技术的优缺点,随后研究分析了激光扫描测量技术和卫星遥感测绘技术。其次探讨了时序干涉合成孔径雷达(InSAR)衍生技术的应用优势。最后基于SBAS-InSAR技术对研究区域进行监测,通过深入分析形变特征,发现线路沉降明显。研究为铁路工程安全评估提供科学依据。

During the construction process,the surface deformation monitoring of the railway line is the key to ensure the safe and stable operation of the line.At present,traditional ground measurement technology faces challenges such as high labor cost and low efficiency in monitoring.Therefore,it is especially important to explore new technologies.Firstly,the advantages and disadvantages of traditional ground surveying technology are analyzed,and then the laser scanning measurement technology and satellite remote sensing mapping technology are studied and analyzed.Secondly,the application advantages of the Timing Interferometric Synthetic Aperture Radar(InSAR)derivative technology are discussed.Finally,based on SBAS-InSAR technology,the study area was monitored,and through in-depth analysis of the deformation characteristics,it was found that the line settlement was obvious.The research provides a scientific basis for the safety assessment of railway engineering.