Application of LT-1 SAR data to deformation monitoring and DEM inversion in the mining area

doi:10.13474/j.cnki.11-2246.2026.0317

Abstract

Abstract: Efficient monitoring of surface deformation in mining areas is vital for disaster prevention and control and ecological protection.This paper takes the open-pit mine and underground mine of Dongsheng coalfield as the research object.Based on the L-band SAR satellite data of LT-1,combined with D-InSAR and InSAR technologies,the monitoring of surface subsidence in the mining area and the inversion of DEM are achieved,and the accuracy is verified through the measured elevation and unmanned aerial vehicle data.The results show that: ①The LT-1 data can effectively capture large gradient deformations (>1 m),the subsidence range of open-pit mines is wide (up to 39 cm),the settlement depth of underground mines is large (up to 135 cm),and the deformation points migrate dynamically along with the mining and excavation directions.②Under the condition of no control points,93% of the elevation difference between LT-1 DEM and unmanned aerial vehicle DEM is concentrated within ±5 m,meeting the mapping standard of 1∶50 000.③The dual-star formation mode significantly enhances the monitoring efficiency,and the 4 d revisit cycle can support dynamic deformation tracking in the mining area.This study confirms the advantages of LT-1 data in deformation monitoring and high-precision terrain reconstruction in complex mining areas,providing reliable technical means for mine safety and ecological restoration.

Key words: LT-1, DEM, underground mine, open pit mine, subsidence monitoring

CLC Number:

P258

ZHANG Chuang, FANG Ping, YAO Xinyu, DONG Ruxu, BU Wenchao, LI Haodong, WANG Zhixiong, LIU Ying, YUE Hui. Application of LT-1 SAR data to deformation monitoring and DEM inversion in the mining area[J]. Bulletin of Surveying and Mapping, 2026, 0(3): 100-105,123.

References

[1] 鞠金峰,马祥,赵富强,等.东胜煤田导水裂隙发育及其分区特征研究[J].煤炭科学技术,2022,50(2):202-212.
[2] MA Shuyue,QIU Haijun,YANG Dongdong,et al.Surface multi-hazard effect of underground coal mining[J].Landslides,2023,20(1):39-52.
[3] MODESTE G,DOUBRE C,MASSON F.Time evolution of mining-related residual subsidence monitored over a 24-year period using InSAR in southern Alsace,France[J].International Journal of Applied Earth Observation and Geoinformation,2021,102:102392.
[4] WANG Rui,WU Kan,HE Qimin,et al.A novel method of monitoring surface subsidence law based on probability integral model combined with active and passive remote sensing data[J].Remote Sensing,2022,14(2):299.
[5] CHEN Yang,YU Shengwen,TAO Qiuxiang,et al.Accuracy verification and correction of D-InSAR and SBAS-InSAR in monitoring mining surface subsidence[J].Remote Sensing,2021,13(21):4365.
[6] ACOSTA G,RODRÍGUEZ A,EUILLADES P,et al.Detection of active landslides by DInSAR in Andean precordillera of San Juan,Argentina[J].Journal of South American Earth Sciences,2021,108:103205.
[7] 刘辉,陈斯涤,朱晓峻,等.基于D-InSAR技术的煤矿工业广场动态沉降特征研究[J].煤田地质与勘探,2023,51(5):99-112.
[8] SIMMONS B S,WEMPEN J M.Quantifying relationships between subsidence and longwall face advance using DInSAR[J].International Journal of Mining Science and Technology,2021,31(1):91-94.
[9] JIANG Xuzi,MIN Xiangyu,YE Tiantian,et al.Monitoring the subsidence at different periods in high underground water level coal mine areas using differential interferometric synthetic aperture radar (D-InSAR)[J].Geocarto International,2023,38(1):2215730.
[10] BARAN I,STEWART M,CLAESSENS S.A new functional model for determining minimum and maximum detectable deformation gradient resolved by satellite radar interferometry[J].IEEE Transactions on Geoscience and Remote Sensing,2005,43(4):675-682.
[11] WEMPEN J M,MCCARTER M K.Comparison of L-band and X-band differential interferometric synthetic aperture radar for mine subsidence monitoring in central Utah[J].International Journal of Mining Science and Technology,2017,27(1):159-163.
[12] HU Liuru,TANG Xinming,TOMÁS R,et al.Monitoring surface deformation dynamics in the mining subsidence area using LT-1 InSAR interferometry:a case study of Datong,China[J].International Journal of Applied Earth Observation and Geoinformation,2024,131:103936.
[13] ZHANG Xuefei,LI Tao,ZHANG Xiang,et al.Rock glacier topography mapping and deformation monitoring over Tibetan Plateau periglacial environment using lutan-1 SAR satellite constellation[C]//Proceedings of 2024 IEEE International Geoscience and Remote Sensing Symposium.Athens:IEEE,2024:11091-11094.
[14] 刘斌,张丽,葛大庆,等.陆地探测一号卫星滑坡大形变InSAR监测应用[J].武汉大学学报(信息科学版),2024,49(10):1753-1762.
[15] 李永生,李强,焦其松,等.陆地探测一号SAR卫星星座在地震行业的应用与展望[J].武汉大学学报(信息科学版),2024,49(10):1741-1752.
[16] 张建柱,麻源源,麻卫峰.利用升降轨sentinel-1A提取昆明DEM及其精度分析[J].矿山测量,2018,46(6):34-40.
[17] ZYLSHAL Z,BAYANUDDIN A A,SARTIKA S,et al.Evaluating digital elevation model generation from Sentinel-1 SAR data in challenging tropical environments[J].Modeling Earth Systems and Environment,2024,10(6):7359-7382.
[18] 娄明明,巩华刚,徐子兴,等.基于D-InSAR技术的鄂尔多斯市矿区形变监测与分析[J].测绘地理信息,2021,46(S1):131-136.
[19] 仝云霄,杨俊泉,胡晓佳,等.基于D-InSAR技术的矿区地表沉降监测研究[J].地球学报,2024,45(3):410-422.
[20] JI Yanan,ZHANG Xiang,LI Tao,et al.Mining deformation monitoring based on lutan-1 monostatic and bistatic data[J].Remote Sensing,2023,15(24):5668.