基于数据技术的城市地下空间特征信息表达与挖掘

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1、ABSTRACT21协centuryisseeingtherapiddevelopmentofurbanundergroundspaceandinformationtechnology．Asanimportantnaturalresource，urbanundergroundspatialinformationhasgreatsignificanceinurbaninfrastructureconstruction，civildefenseconstructionandurbansustainabledevelopment．Also，asthestra

2、tegicresourcedata,thevalueofurbanundergroundspatialinformationCanbeachievedthroughSharing，integrationandapplications．Fromwhich，greatquantityofusefulknowledgecanbeminedtomeetthepracticalneeds．Thiswillmakethetraditionalundergrounddevelopmenttechnologybloomingintheinformationera，an

3、dstepintotheageofundergroundspaceinformatization．Inthispaper,representationandminingofurbanundergroundspatialinformationareinvestigatedandthemainresearchofthisthesisisasfollows：．Adetaileddescriptionofurbanundergroundspatialinformationclassificationispresented,combining、航tllthest

4、atusandfeaturesofundergroundspaceutilizationinNanjing，athoroughresearchonstratum&geo-investigationinformation，undergroundstructureinformation，undergroundpipelineinformation，constructioninformationandundergroundwaterinformationismaderespectively．Simultaneously,urbanundergroundspa

5、tialinformationcharacterizationisgiven,suchasmulti-resources，diversity,nonlinear,discretenessandspatio-temporalfeatures．TheGeotech-XMLisintroducedandsometechnologiesofGeoteeh-XMLarefullydiscussed，suchasdocumentstructure，documenttypedefinitionandextensiblestyle—sheetlanguage．Onth

6、ebasisofthesetechnologies，wi也theundergroundspaceplanninginformationofHangzhouCBDandtheShanghaiRoadStationgeo-investigationinformationandfoundationpitengineeringinformationofNanjingMetroLine2First—StageProjectasexamples，theundergroundsp。aceplanninginformation,thegeo—investigation

7、informationandtheundergroundstructuralinformationaleclearlyrepresentedinHTMLbyusingGeotech-XML．Thecodesoftheseexamplesarealsoprovidedandthenecessityandinevitabletrendofurbanundergroundspatialinformationstandardisationisanalyzedaswell．Threemodelsofurbanundergroundspatialinformati

8、onminingarediscussedindetail，includingfuzzy-clu