融合星载/地基InSAR的铁路施工滑移监测分析研究

Analysis Study of the Monitoring Slip-deformation in Railway Construction through the Fusion of Spaceborne/Ground-based SAR Interferometry

研究目的:铁路施工过程中的坡体工点滑移评估分析是一项复杂、系统性的工作,仅靠单一监测分析方法难以获取具有说服力的结论。为了克服铁路施工坡体工点滑移监测方法单一、监测结果缺乏印证等问题、本文旨在通过星载/地基SAR干涉测量、人工监测、地勘分析方法的融合应用,研究适用于铁路施工区滑移变形监测的多维度综合分析方法。研究结论:(1)采用融合星载/地基SAR干涉测量的铁路施工区滑移变形监测方法,可获取滑移坡体周边及本体、地表与地层、历史与现状、定性与定量的多维度分析结果,提高对滑移原因分析的准确度;(2)地基SAR干涉技术可作为滑移体地表实时变形评估的有效手段;(3)本文总结的铁路施工区滑移变形监测方法流程在实际项目中得到成功应用,可在类似工程中进行推广。

Research purposes:The evaluation and analysis of slope slippage in certain work point during railway construction is a complex and systematic work.It is difficult to obtain convincing conclusions with a single monitoring and analysis method.This paper aims to explore a multi-dimensional comprehensive analysis method suitable for slip and deformation monitoring in railway construction areas through the fusion of spaceborne/ground-based InSAR,manual monitoring and geological survey analysis,in order to overcome problems such as the lack of multiple means,lack of verification of monitoring results for conclusions.Research conclusions:(1)The method of monitoring slip deformation in railway construction area,which combines spaceborne/ground-based InSAR,can obtain multi-dimensional analysis results of the sliding slope,including surroundings and main body,surface and strata,history and current situation,and qualitative and quantitative,which could improve the accuracy of judgment on the cause of slippage.(2)Ground-based InSAR can be used as an effective means for real-time deformation assessment of the slippage.(3)The summarized method and process of slip deformation monitoring in railway construction areas have been successfully applied in practical projects,and can be popularized in similar projects.