基于遥感技术的高速公路地质灾害隐患动态监测方法

Dynamic Monitoring Method for Geological Hazards on Expressways Based on Remote Sensing Technology

由于传统地质灾害隐患监测方法主要依托于人工布设监测网点的手段,受人为因素影响严重,无法保证监测数据的准确性,提出基于遥感技术的高速公路地质灾害隐患动态监测方法。以邢汾高速公路部分区域作为研究区,基于遥感技术采集高速公路的SAR数据,经过影像配准与相位解缠等步骤的预处理后,提取出形变区隐患点的关键形变特征参数,将提取的形变参数和预设阈值对比,评估形变区隐患点的危险性等级,完成高速公路地质灾害隐患的动态监测。结果表明,研究区的形变速率监测数据与实际数据之间误差仅1.58mm/year,满足高速公路地质灾害隐患的高精度动态监测需求。

Due to the traditional method of monitoring geological hazards mainly relying on manual deployment of monitoring points,which is severely affected by human factors and cannot guarantee the accuracy of monitoring data,a dynamic monitoring method for geological hazards on highways based on remote sensing technology is proposed.Taking some areas of the Xingfen Expressway as the research area,SAR data of the expressway was collected based on remote sensing technology.After image registration and phase unwrapping,key deformation characteristic parameters of hidden danger points in the deformation area were extracted.The extracted deformation parameters were compared with the preset threshold values to evaluate the danger level of hidden danger points in the deformation area,and dynamic monitoring of geological hazards in the expressway was completed.The results indicate that the error between the deformation rate monitoring data in the study area and the actual data is only 1.58mm/year,which meets the high-precision dynamic monitoring requirements for geological hazards on highways.