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ID:24927320
大小:28.60 KB
页数:15页
时间:2018-11-17
《外文翻译--以gis为基础的煤矿开采沉陷危机分析》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、翻译部分英文原文SensitivityanalysisfortheGIS-basedmappingofthegroundsubsidencehazardnearabandonedundergroundcoalminesAbstractGroundsubsidencearoundabandonedunder-groundcoalminescancausemuchlossoflifeandprop-erty.Weanalyzefactorsthatcanaffectgroundsubsidencearoundab
2、andonedminesinJeongahminKangwon-dobysensitivityanalysisingeographicinformationsystem(GIS).Spatialdataforthesubsidencearea,topographyandgeologyandvariousgroundengineeringdatawerecol-lectedandusedtomakeafactorrasterdatabaseforagroundsubsidencehazardmap.Todete
3、rminetheimpor-tanceofextractedsubsidence-relatedfactors,frequencyratiomodelandsensitivityanalysiswereemployed.Sen-sitivityanalysisisamethodforcomparingthecombinedeffectsofallfactorsexceptone.Sensitivityanalysisanditsverificationshowedthatusingallfactorsprov
4、ided91.61%accuracy.Thebestaccuracywasachievedbynotconsid-eringthegroundwaterdepth(92.77%)andtheworstbynotconsideringthelineament(85.42%).Theresultsshowthatthedistancefromthelineamentandthedistancefromthedrifthighlyaffectedtheoccurrenceofgroundsubsidence,and
5、thegroundwaterdepth,landuseandrockmassratinghadtheleasteffects.Thus,wedeterminedcausesofgroundsubsidenceinthestudyareaandthisinformationcouldhelpinthepredictionofgroundsubsidenceinotherareas.KeywordsGISAbandonedundergroundcoalmineGroundsubsidenceFrequencyra
6、tioSensitivityanalysisKoreaIntroductionCoalindustryhasplayedamajorroleinthedevelopmentoftheKoreaneconomysincethe1960s.However,thecoalindustrybegantodeclinefromtheendofthe1980sbecausetheoilpricefellglobally.Therewere173coalminesin1988inJeongseon,Kangwon-do,t
7、helargestcoalminingregioninKorea.However,valuelesscoalmineswereabandonedaftertheimplementationofcoalindustryrationalizationactionbyKoreangovernment.Today,nocoalminesareinoperation.IntheabandonedcoalminesinJeongseon,environmentalpollution,havingneverbeencons
8、ideredafutureproblematthetimetheminesceasedoperating,isontheincrease.Heavymetalsinwastewaterfromcoalminesandmuckreachingriversandsoilisaseriousproblem.Inparticular,mostabandonedcoalminesareinmountainra
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