| 基于时序InSAR技术的甘肃金川铜镍矿区地表沉降研究 |
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| 引用本文： | 李强,王卫红,杨宁,熊高翔,雷欢欢,李凯.基于时序InSAR技术的甘肃金川铜镍矿区地表沉降研究[J].地质找矿论丛,2021,36(2):221-227. |
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| 作者姓名： | 李强 王卫红 杨宁 熊高翔 雷欢欢 李凯 |
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| 作者单位： | 四川省冶金地质勘查院,成都610051;国家遥感中心绵阳科技城分部,四川绵阳621010;国家遥感中心绵阳科技城分部,四川绵阳621010;西南科技大学环境与资源学院,四川绵阳621010;四川省冶金地质勘查院,成都610051 |
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| 基金项目： | 国家自然科学基金项目（编号：41204068）和四川省教育厅重点项目（编号：15ZA0120）联合资助。 |
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| 摘 要： | 文章采用时序InSAR技术对甘肃省金川铜镍矿区域地表沉降规律开展研究。利用Sentinel-1A干涉影像,基于SBAS-InSAR技术和时序D-InSAR技术,反演2018年1月—11月金川铜镍矿区域地表沉降。经过2种技术结果对比及验证分析表明,2018年矿区有2个沉降漏斗,分别是西二采区5-7行和老矿坑。西二采区5-7行的最大沉降速率为-14mm/a,雷达视线向累积最大形变量为13mm,地面形变呈平稳态势;老矿坑东南方存在明显的沉降,沉降最大速率为-85mm/a,雷达视线向累积最大形变量为78mm。
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| 关 键 词： | 金川铜镍矿 时序D-InSAR技术 SBAS-InSAR技术 Sentinel-1A影像 地表沉降 甘肃省 |
| 收稿时间： | 2020/7/23 0:00:00 |
| 修稿时间： | 2021/4/3 0:00:00 |
The sequential InSAR technology-based study on surface subsidence of Jinchuan Cu-Ni mining area, Gansu province |
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| LI Qiang,WANG Weihong,YANG Ning,XIONG Gaoxiang,LEI Huanhuan,LI Kai.The sequential InSAR technology-based study on surface subsidence of Jinchuan Cu-Ni mining area, Gansu province[J].Contributions to Geology and Mineral Resources Research,2021,36(2):221-227. |
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| Authors: | LI Qiang WANG Weihong YANG Ning XIONG Gaoxiang LEI Huanhuan LI Kai |
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| Institution: | Sichuan Institute of Metallurgical Geology and Exploration, Chengdu 610051, China;Mianyang Science and Technology City Branch of National Remote Sensing Center, Mianyang 621010, Sichuan, China;Mianyang Science and Technology City Branch of National Remote Sensing Center, Mianyang 621010, Sichuan, China;School of Environment and Resources, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China |
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| Abstract: | On basis of the SBAS-InSAR technology and time series D-InSAR technology Sentinel-1A interference images are used to retrieve the surface subsidence of Jinchuan Cu-Ni mining area from Jan. to Nov.2018. Comparison analysis of the two technologies'' result shows that in 2018 occur two subsidence funnels in the mining area. One is at row 5-7 of the West 2 mining area, the other at the old pit. The maximum subsidence of the West 2 mining area is -14 mm/a, the cumulative maximum deformation in the radar line of sight 13 mm, the surface deformation stable. Severe subsidence is at the southeast of the old pit where the maximum subsidence rate is -85 mm/a, the cumulative maximum deformation in the radar line of sight 78 mm. |
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| Keywords: | JinChuan Cu-Ni deposit sequential D-InSAR technology SBAS-InSAR technology Sentinel-1A image surface subsidence Gansu province |
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