| Application of DEM overlaying technique in surface subsidence identification─a case study in Ruqigou coal mining area of Ningxia,China |
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| 作者姓名： | CHEN Li-ding |
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| 作者单位： | Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China |
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| 摘 要： | 1IntroductionSubsidence,asverticalmovementoftheeallof'USt,occurredinmanypartsoftheworld,Particularlyindenselypopulateddeltalcregions.Withocctirrenceofsurfacesubsidence,alotofdamagehasbeeninduced.Surfacesubsidencecanberesultedfromnabscauses.suchastectonicinchonandsealevelrise,fromman-madeinducedcauses,suchasexcessivewithdrawalofgroundwater,geothennalfluids.oilandgas,orextrachonofcoal,sulphur,goldandothersolidsthroughminingorUndergroundconstrUchon(t'Unnelling),orfromother"dxedcausessuchashydro…
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