PS-InSAR技术辅助GPR监测城市道路地下病害体
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摘要
为了解决探地雷达(GPR)监测城市道路地下病害体的效率和针对性,本文以兰州城市道路为试验区,基于2015～2018年的哨兵数据,采用永久散射体差分干涉测量(PS-InSAR)理论和技术方法提取了兰州城市道路的沉降速率和沉降场,分析了试验区约45 km2范围内的地面沉降与已有道路病害体之间的关系。结果表明,PS-InSAR技术方法不仅实现了大范围沉降监测,而且为探地雷达监测城市道路地下病害体提供了基础数据支持,实现了探地雷达有针对性及高效监测道路地下病害体。
In order to solve the problem of the efficiency and pertinence of ground penetrating radar( GPR) in monitoring the underground pests of urban roads,in this paper,taking Lanzhou urban roads as experimental areas,based on the sentinel data from 2015 to 2018,the subsidence rate and subsidence field of urban roads in Lanzhou were extracted by using the theory and technical method of PS-In SAR,and the relationship between the subsidence in the test area of about 45 km2 and the existing road disease bodies was analyzed. The results showed that the large-scale subsidence monitoring was realized by PS-InSAR technique,and basic data support was provided for GPR to monitor the underground diseases of urban roads,and the targeted and the efficient monitoring of the underground diseases of roads were realized by GPR.
In order to solve the problem of the efficiency and pertinence of ground penetrating radar( GPR) in monitoring the underground pests of urban roads,in this paper,taking Lanzhou urban roads as experimental areas,based on the sentinel data from 2015 to 2018,the subsidence rate and subsidence field of urban roads in Lanzhou were extracted by using the theory and technical method of PS-In SAR,and the relationship between the subsidence in the test area of about 45 km2 and the existing road disease bodies was analyzed. The results showed that the large-scale subsidence monitoring was realized by PS-InSAR technique,and basic data support was provided for GPR to monitor the underground diseases of urban roads,and the targeted and the efficient monitoring of the underground diseases of roads were realized by GPR.
引文
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