D-InSAR技术与SBAS-InSAR技术在矿区地面沉降监测中的应用研究  

Research on the application of D-InSAR and SBAS-InSAR technologies in the monitoring of ground subsidence in mining areas

作　　者：王鹏 程海强 王翔 WANG Peng;CHENG Haiqiang;WANG Xiang(Geological Survey Department,Shandong Sanhekou Mining Co.,Ltd.,Jining 277600,China;Geological Survey Department,Zaozhuang Mining(Group)Co.,Ltd.,Zaozhuang 277000,China;School of Surveying and Geo-Informatics,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]山东省三河口矿业有限责任公司地质测量科,山东济宁277600 [2]枣庄矿业(集团)有限责任公司地质测量部,山东枣庄277000 [3]山东建筑大学测绘地理信息学院,山东济南250101

出　　处：《中国矿业》2024年第3期133-141,共9页China Mining Magazine

摘　　要：为了对D-InSAR和SBAS-InSAR两种技术在矿区地面沉降监测中的应用能力进行对比分析,以山东省济宁市某采矿工作面为主要研究区,选取2022年11月2日—2023年8月29日期间26景Sentinel-1A数据,分别利用D-InSAR和SBAS-InSAR两种技术获取了该工作面的地面沉降信息,首先从沉降区域的时空演变特征和沉降面积分布等方面对两种技术进行了对比分析,进一步通过同期实测水准数据对两种技术得到的结果进行了精度验证。研究结果表明,D-InSAR和SBAS-InSAR两种技术监测到的研究区内最大累积沉降量分别为69 mm和59 mm,识别出沉降量大于10 mm的区域面积分别为0.60 km^(2)和0.87 km^(2),其中,沉降量大于30 mm的区域面积分别为0.10 km^(2)和0.17 km^(2)。与水准监测数据对比可知,两种InSAR技术得到的监测结果与真实沉降情况相吻合,在部分沉降漏斗中心区域,地面沉降量超过InSAR技术可监测形变梯度,两种技术的监测精度都大幅降低。相对于SBAS-InSAR技术,D-InSAR技术获取的累积沉降量值更大,但其抵抗误差干扰的能力较弱,而SBAS-InSAR技术能够更好地消除大气相位效应等误差的影响,得到的地面沉降结果在空间分布上更连续平滑。本文研究对利用InSAR技术监测矿区地面沉降具有一定借鉴意义。In order to compare and analyze the application of D-InSAR and SBAS-InSAR technologies in the monitoring of ground subsidence in mining areas,a mining face in Jining City,Shandong Province is selected as the main study area,and 26 Sentinel-1A data are collected from November 2,2022 to August 29,2023,and the ground subsidence of the working face is obtained by using D-InSAR and SBAS-InSAR technologies,firstly,the two technologies are compared and analyzed in terms of the spatial and temporal evolution characteristics of the subsidence area and the distribution of the deformation area,and then the results obtained by the two technologies are verified by the accuracy of the same period of measured level data.The results show that the maximum cumulative subsidence in the study area detected by D-InSAR and SBAS-InSAR technologies are 69 mm and 59 mm,respectively,and the areas with subsidence greater than 10 mm are identified to be 0.60 km2 and 0.87 km2,of which the areas with subsidence greater than 30 mm are 0.10 km2 and 0.17 km2,respectively.When centimeter-level subsidence occurs,the results obtained by the two technologies are compared and analyzed.When the ground subsidence reaches the decimeter level,both InSAR technologies are difficult to quantitatively reflect the real ground subsidence.Compared with the SBAS-InSAR technology,the D-InSAR technology obtains a larger value of cumulative subsidence,but its ability to resist the interference of errors is weaker,while the SBAS-InSAR technology is able to better eliminate the influence of errors such as the atmospheric phase effect,and the obtained results of the ground subsidence are more continuous and smooth in the spatial distribution.The research in this paper has some implications for the utilization of InSAR technology to monitor the ground subsidence in mining areas.

关 键 词：D-INSAR技术 SBAS-InSAR技术 煤矿 地面沉降 沉降监测 

分 类 号：TD235[矿业工程—矿井建设]