集成IPTA与SBAS煤矿地表沉降监测与分析——以河南新密芦沟煤矿为例  

Integrating IPTA and SBAS for Detecting and Analysing Coal Mine Surface Subsidence--As a Case of Lugou Coal Mine in Xinmi,Henan

作　　者：张曦 姜川 李叶繁 苑雨 李昊 ZHANG Xi;JIANG Chuan;LI Yefan;YUAN Yu;LI Hao(Henan Hydrogeology and Engineering Geology Survey Institute Co.,Ltd.,Zhengzhou,Henan 450000;The Prevention and Control Center for the Geological Disaster of Henan Geological Bureau,Zhengzhou,Henan 450000)

机构地区：[1]河南省水文地质工程地质勘察院有限公司,河南郑州450000 [2]河南省地质局地质灾害防治中心,河南郑州450000

出　　处：《中国煤炭地质》2025年第3期64-70,共7页Coal Geology of China

基　　金：河南省地质局2023年度局管地质科研类项目(豫地文[2023]15号)。

摘　　要：煤炭开采区地表形变具有大梯度、非线性等特点,单一的InSAR处理方法难以获取矿区连续且完整的地表形变结果。本研究对覆盖新密芦沟煤矿的2017年3月至2023年7月共计93景Sentinel-1A影像使用SBAS-InSAR和IPTA两种方法进行处理,同时利用Kriging插值对两种方法得到的形变结果进行集成,获取了矿区完整的地面形变信息。研究结果表明:芦沟煤矿开采导致地面沉降严重,2017年3月至2023年7月矿区内共形成6个沉降漏斗区,且有逐渐连成一片的趋势,SBAS-InSAR与IPTA得到的沉降区域在空间分布上基本一致,最大累计沉降量也基本相同;基于Kriging插值方法,集成IPTA和SBAS-InSAR两者的结果,可以在沉降漏斗边缘区域很好地保持了SBAS-InSAR的监测精度,并且有效地解决了SBAS-InSAR在沉降漏斗中心区由于失相干而无法获得形变信息的问题,进而可以得到完整的矿区地表变形信息,为矿区地面沉降控制及综合防灾减灾提供技术指导。The surface deformation in the coal mining area is characterized by large gradient and nonlinearity,and it is difficult to obtain continuous and complete surface deformation results in the mining area with a single InSAR processing method.In this study,a total of 93 Sentinel-1A images from March 2017 to July 2023 covering the Lugou coal mine in Xinmi were processed using both SBAS-InSAR and IPTA,and the deformation results obtained by the two methods were integrated using Kriging interpolation to obtain the complete ground deformation information of the mine area.The results of the study show that the Lugou coal mine mining has led to serious ground subsidence,and a total of six subsidence funnel areas with a tendency to gradually connect together were formed in the mining area from March 2017 to July 2023,and the subsidence areas obtained by SBAS-InSAR and IPTA are basically the same in terms of spatial distribution,and the maximum cumulative amount of subsidence is also basically the same;While using Kriging interpolation to integrate the results of both IPTA and SBAS-InSAR,the monitoring accuracy of SBAS-InSAR can be maintained at the edge of the subsidence funnel,and at the same time solving the problem that the deformation information cannot be obtained by SBAS-InSAR in the center of the subsidence,and then obtaining the complete information of surface deformation of the mining area,which can be used as a guide for the control of ground subsidence in the mining area as well as the comprehensive disaster prevention and mitigation technology.

关 键 词：SBAS-InSAR IPTA 地面沉降 新密芦沟煤矿 

分 类 号：P694[天文地球—地质学]