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首页> 外文期刊>Fresenius environmental bulletin >APPLICATION OF SBAS-INSAR TECHNOLOGYIN URBAN LAND SUBSIDENCE MONITORING
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APPLICATION OF SBAS-INSAR TECHNOLOGYIN URBAN LAND SUBSIDENCE MONITORING

机译：SBAS-INSAR技术在城市土地沉降监测中的应用

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摘要

With the construction of groundwater extrac-tion and urban infrastructure, ground subsidence has emerged one after another, threatening economic property and life safety, and has become a major fac-tor restricting urban development. Short baseline in-terferometry(Small Baseline Subset, SBAS-InSAR)can overcome spatio-temporal decoherence and at-mospheric effects. It has long-term, high-precision monitoring of small surface deformations and is widely used in urban land subsidence monitoring. This paper takes Xi'an city as the research object, uses SBAS-InSAR technology to monitor land sub-sidence,applies SARscape software to analyze the average land subsidence rate and accumulated sub-sidence under the time series of urban locations, and verifies the accuracy of SBAS-InSAR technology through field monitoring points. The results show that most areas of Xi'an are in a relatively stable state, and the settlement areas are concentrated in the souther Yuhuazhai, Electronic City, Sanai Station and Fengwuyuan Station. Groundwater mining, in-frastructure construction and population density are the main driving factors for land subsidence in Xi'an. The research results can provide a reference for the prevention and control of land subsidence disasters in Xi'an.
机译：随着地下水额外和城市基础设施的建设，地下沉降已经出现了一个接一个，威胁到经济财产和生命安全，已成为限制城市发展的主要因素。短基线in-terferometry（小基线子集，SBAS-INSAR）可以克服时空脱机和致力学效应。它具有长期，高精度监测小表面变形，广泛应用于城市土地沉降监测。本文以西安市为研究对象，采用SBAS-INSAR技术监控土地子系统，适用SARSCAPE软件分析城市地点时间序列下的平均土地沉降率和累计子女率，并验证了通过现场监测点的SBAS-INSAR技术的准确性。结果表明，西安的大多数地区都处于相对稳定的状态，结算区集中在南部宇津，电子城，三头站和丰龙源站。地下水开采，型号建筑和人口密度是西安土地沉降的主要推动因素。研究成果可以为西安土地沉降灾害预防和控制提供参考。

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