| 利用PS-InSAR技术进行城市地铁沿线形变监测与机理分析 |
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| 引用本文： | 李佳豪,周吕,马俊,杨飞,咸凌霄.利用PS-InSAR技术进行城市地铁沿线形变监测与机理分析[J].测绘通报,2022,0(4):20-25. |
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| 作者姓名： | 李佳豪 周吕 马俊 杨飞 咸凌霄 |
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| 作者单位： | 1. 桂林理工大学测绘地理信息学院, 广西 桂林 541004;2. 中铁第四勘察设计院集团有限公司, 湖北 武汉 430063;3. 中国矿业大学(北京)地球科学与测绘工程学院, 北京 100083 |
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| 基金项目： | 广西科技计划(桂科AD19110107)；;武汉市科技计划(2019010702011314)；;国家自然科学基金(42064003)；;广西自然科学基金(2018GXNSFBA050006)； |
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| 摘 要： | 本文利用PS-InSAR技术获取了上海地区沉降速率场及累计沉降量等信息，并分析了该地区的沉降时空分布特征，以及该地区沉降与降水量、地铁施工运营等因素之间的关系。研究表明:①上海市沉降呈不均匀分布，北部沉降较稳定，而中部的虹口区、南部的闵行区、东部的浦东新区均发生了不同程度的沉降。其中，闵行区沉降最为严重，其最大累计沉降量达-43 mm，呈大范围、大沉降现象。②研究区域内沉降量呈非线性沉降现象及明显的季节性变化，且与地区降水量有关，降雨量对地下水的及时补充可以有效缓解地面过度沉降的发生。③上海地铁3、15、16号线部分路段均出现明显沉降现象，且处于在建阶段的15号线沉降最为明显，部分路段最大累计沉降量达-34 mm。
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| 关 键 词： | 沉降监测 PS-InSAR Sentinel-1A 上海 |
| 收稿时间： | 2021-07-14 |
Deformation monitoring and mechanism analysis of urban subway line based on PS-InSAR technology |
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| LI Jiahao,ZHOU Lü,MA Jun,YANG Fei,XIAN Lingxiao.Deformation monitoring and mechanism analysis of urban subway line based on PS-InSAR technology[J].Bulletin of Surveying and Mapping,2022,0(4):20-25. |
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| Authors: | LI Jiahao ZHOU Lü MA Jun YANG Fei XIAN Lingxiao |
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| Institution: | 1. College of Geomatics and Geoinformation, Guilin University of Technology, Guilin 541004, China;2. China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063, China;3. College of Geoscience and Survey Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China |
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| Abstract: | This paper uses PS-InSAR technology to obtain information on the field of subsidence rate and accumulated subsidence in the Shanghai area, and analyzes the temporal and spatial distribution characteristics of subsidence in this area, as well as the correlation between subsidence and precipitation in this area, subway construction and operation and other influencing factors. The research shows that:①The subsidence in Shanghai is unevenly distributed. The subsidence in the north of Shanghai is relatively stable, while the Hongkou district in the middle, the Minhang district in the south, and the Pudong new area in the east all have different degrees of subsidence. Among them, the Minhang district has the most serious subsidence, and the maximum cumulative subsidence is -43 mm, with large-scale, large-scale subsidence. ②The subsidence in the study area is nonlinear. The apparent seasonal change of subsidence is related to regional precipitation. The timely supplement of rainfall to groundwater can effectively alleviate excessive groundwater. ③Some sections of Line 3, 15 and 16 of Shanghai subway all have obvious settlement, and the settlement of Line 15 in the construction stage is the most obvious, and the maximum accumulated settlement of some sections is -34 mm. |
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| Keywords: | subsidence monitoring PS-InSAR Sentinel-1A Shanghai |
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