| 郑州市地裂缝遥感识别与监测 |
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| 引用本文： | 汪宝存.郑州市地裂缝遥感识别与监测[J].测绘与空间地理信息,2015(10). |
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| 作者姓名： | 汪宝存 |
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| 作者单位： | 河南省地质矿产勘查开发局测绘地理信息院，河南郑州450006; 河南省地质勘查信息化工程技术研究中心，河南郑州450006 |
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| 基金项目： | 中国地质调查局---中原城市群地质环境监测与评价(12120110809049)，河南省地矿局---基于InSAR的郑州市地面沉降监测应用研究项目(豫地环〔2012〕17号) |
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| 摘 要： | 根据坡度分析在灾害防治与水土保持工作上的应用,提出了以IPTA技术获取的地面沉降速率图为数据源,利用地面沉降坡度分析开展地裂缝遥感识别;以郑州市为研究区,根据地面沉降坡度分析识别出的目标区,在郑州市区首次发现因差异性地面沉降造成的地裂缝,实地调查发现该地裂缝东西长约2 000 m,已经造成附近10余处建筑物受损,监测结果表明该地裂缝存在明显的三维形变;实地调查和监测结果证明,地面沉降坡度分析不仅可以用于地裂缝的识别,也能用于地面沉降危险性分区,对地质灾害防治减灾有一定的指导意义。
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| 关 键 词： | 坡度 地面沉降坡度分析 地裂缝 遥感识别 |
Remote Sensing Recognition and Monitoring about Ground Fsi sure in Zhengzhou |
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| Abstract: | According to the application of slope analysis in disaster prevention and water and soil conservation, this article puts for-ward remote sensing recognition of ground fissure using slope analysis base on the data source by IPTA technology of rate map of land subsidence.Taking zhengzhou city as the study area, the ground fissure caused by differential land subsidence were first discovered, according to the target area identified by slope analysis of land subsidence.The ground fissure is 2 000 meters in length of EW, and more than 10 buildings were damaged near the bay field survey.The monitoring results show that the ground fissure has obviously three-dimensional deformation.The field survey and monitoring results proved slope analysis of land subsidence can not only be used to i-dentify ground fissure but also be used land subsidence risk zoning, And had some degree of guiding significance in geological hazard monitoring and prevention. |
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| Keywords: | slope slope analysis of land subsidence ground fissure remote sensing recognition |
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