基于SBAS-InSAR的黃河上游干流庫壩群段滑坡形變分析

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關(guān)鍵詞：滑坡形變；SBAS-InSAR;PS選點(diǎn)；DS選點(diǎn)；黃河上游干流中圖分類號：P642.22;P237;TV882.1 文獻(xiàn)標(biāo)志碼：A doi：10.3969/j.issn.1000-1379.2025.07.012引用格式：，，，等.基于SBAS-InSAR 的黃河上游干流庫壩群段滑坡形變分析[J].人民黃河，2025，47（7）：73-77.

Analysis of Landslide Deformation in Mainstream Reservoir Group Section of the Upper Yellow River Based on SBAS-InSAR

LIU Yifan1，YU Bo2 ，LI Jie1，HUANG Rui1 （1.Guiyang Engineering Corporation Limited，Power China，Guiyang 55Oo81， China; 2.Hydropower and Water Resources Planning & Design General Institute，Power China，Beijing 1O0120，China） Abstract：Theupstreammainstreamdamgroupof teYelowRiverislocatedinthetransitioalzonebetweentheQinghaiTibetPlateauand theLoessPlateau，requiringlarge-scaelndslidehazardidentificationTaking teLngangGorge-LijiaGrgedamgroupsectionasere searcharea，SBAS-InSARmethodwasusedtoforsallbaselineiterferograms，teamplitudedeviationindexandcoherenceficiet methodwereusedtolectPSpoints（PermanetScaterer），andtheKSstatisticalestmetdasusdtoselectDSpntsPistrutedat terer）.Thesurfacedeformationrateanddeformationamountinthestudyareawereobtainedthroughtie-seriesdeformationcalculationRe sults show that the deformation rate in the study area ranges from -80 to 50mm/a ，with most areas having a deformation rate of -10 to 10 （20號 ，indicatingarelativelystablestate.Combiningslopeanddeformationrateanalysis，dentifies3landslidehazardpointsinthestudy area.The maximum deformation rate at the rear edge of the landslide below the top of the Guobu slope is 80mm/a ，which is only 1 km away fromtherightbankreservoirareaofteLaxiahdrooweration，andthedeforatioattetopofthesloeiscreasingearbyare cumulative deformation value from 2021 to 2024 reaches 300mm

KeyWords：landslidedeformation；SBAS-InSAR；PSpointselection；DSpintselection；mainstreamof theupperreachesof th Yellow River

0 引言

黃河上游河段全長 3472km ，流域面積為38.6萬km2 ，占黃河流域總面積的 51.3% ，上游河段總落差3496m 。（剩余6691字）