上海国土资源
上海國土資源
상해국토자원
SHANGHAI LAND&RESOURCES
2012年
1期
58-61
,共4页
地面沉降监测%SBAS-InSAR技术%敏感性分析%地质灾害防治
地麵沉降鑑測%SBAS-InSAR技術%敏感性分析%地質災害防治
지면침강감측%SBAS-InSAR기술%민감성분석%지질재해방치
land subsidence monitoring%SBAS-InSAR%sensitivity analysis%geological hazard control
以地裂缝分布密集的运城市典型地面沉降区为研究区,采用小基线SBAS-DInSAR算法,利用覆盖该区域的8幅ASAR影像进行干涉处理,获得该区域地面沉降信息,初步揭示了研究区地面沉降的空间分布特征。在此基础上,搜集利用研究区地质资料,结合GIS空间分析方法,分析了断层、地裂缝等构造因素与地面沉降的关系,建立了研究区地面沉降灾害敏感性分区图,对该区域地面沉降地裂缝灾害的防治工作具有指导作用。
以地裂縫分佈密集的運城市典型地麵沉降區為研究區,採用小基線SBAS-DInSAR算法,利用覆蓋該區域的8幅ASAR影像進行榦涉處理,穫得該區域地麵沉降信息,初步揭示瞭研究區地麵沉降的空間分佈特徵。在此基礎上,搜集利用研究區地質資料,結閤GIS空間分析方法,分析瞭斷層、地裂縫等構造因素與地麵沉降的關繫,建立瞭研究區地麵沉降災害敏感性分區圖,對該區域地麵沉降地裂縫災害的防治工作具有指導作用。
이지렬봉분포밀집적운성시전형지면침강구위연구구,채용소기선SBAS-DInSAR산법,이용복개해구역적8폭ASAR영상진행간섭처리,획득해구역지면침강신식,초보게시료연구구지면침강적공간분포특정。재차기출상,수집이용연구구지질자료,결합GIS공간분석방법,분석료단층、지렬봉등구조인소여지면침강적관계,건립료연구구지면침강재해민감성분구도,대해구역지면침강지렬봉재해적방치공작구유지도작용。
The city of Yuncheng,located in the Shanxi Graben basin,has suffered large-scale land subsidence and ground fissures,which have seriously constrained urban construction and sustainable economic development of the area.In this paper,the Small Baseline Subset Interferometer Synthetic Aperture Radar(SBAS-InSAR) technique is used to detect and measure ground movement in the area using eight ASAR images.The detailed deformation data obtained by this study revealed the spatial distribution and characteristics of the subsidence.Based on this,GIS was used to show the relationship between subsidence and tectonic factors such as faults and ground fissures,which were determined using previously collected geological data.As a result,the sensitivity index of the study area was determined using the BP neural network method,and the sensitivity level of land subsidence was analyzed using the dimensional analytical method.The results in this paper demonstrate a very powerful conclusion and will contribute to the prevention and mitigation of land subsidence disasters in this region.