基于GIS的滑坡地質(zhì)災(zāi)害危險(xiǎn)性評價(jià)研究——以鞏留縣為例.pdf

1、新疆大學(xué)碩士學(xué)位論文基于GIS的滑坡地質(zhì)災(zāi)害危險(xiǎn)性評價(jià)研究——以鞏留縣為例姓名：秦曉敏申請學(xué)位級別：碩士專業(yè)：理學(xué)自然地理學(xué)指導(dǎo)教師：安放舟20070601新握大學(xué)碩士研究生畢業(yè)論文AbstractTheregionofYiliisoneofseriousareainXinjiangthathappenedlandsUdegeolo舀caldisastefInrecentyearsthefrequencyandtheareasofmou

2、ntainbodylandslidehappenedatahighpitch，whichhavecausedmuchpersonnelcasualtyandeconomiclosstothelocalpeople111eresearchselecttheGongliucountyasanobject，takingthethrou曲investigationmaterialasfoundation，USeSreferencefrompre

3、decessorsresearchtechniqueandachievementfullybyintroducing0IStechnologytothelandslidegeologicaldisasterevaluation，takingeachevaluationfactorandtheirrelationwith1andslidedisasterdisplayinGISasgraphs，imageandotherfoginsAcc

4、ordingtothesituationof1andslidedisasterdis吐ibutioninGongliuweselectfivemajoressentialfactorsthatleadtolandslidehappened，aselevation，slope，aspect，precipitationandgeologicallithologicalcharacterUsingGISconvercthesefactorst

5、othesamequantificationaldatumfunit75m75n11，analyzingthelandslidespatialdistributionandessenfialfactorsleadtolandslidehappenedinGongliu(45282kin2area)，whichhaveimprovedprecisionthatcomparedprocedingresearchBasedontlleland

6、slidefactorsdatabaseandthelandslidespatialdistributiondatabase(1：50，000)，accordingtothecertainrules，combinedtherealitydetailsofresearcharea，useformidablespatialanalysisfunctionofGISfullygettherelationsof1andslideandeachi

7、nfluentfactorclassificationdistrihntionspeciaIlayersThereserchshowsthatthepossibilityofmostlandslideinGongliuhappenedin600—1300meterelevation，intheNorth，SoutheastandNorthwestaspect，25。一65。slope，in400600millimeteryearspre

8、cipitation，andinterlayerwithsoftandflabbyrockgroupsplainareaswillbepronetocauselandslideWiththesupportofGIStechnical，combinedthevalueoflandslideCFwithLogisticRegrssionModel，andSPSSstatisticalanalysissoftware，computedthep

9、robabilityvalueofeachcell，andcarrythroughthelandslidedisastergradezoningUsingthehappenedlandslidetocheck，theresultshowsthatinthebestinstableregionsandinstableregionscontainabout6920％landslideitmakeoutthatevaluateresultan

10、dthehappenedlandslidehavemorecoherence，alsoindicatethemodelofforecasthavemuchveracityInall’byresearchigthelandslidedisasterevaluationinstudyarea，itopenedanewmentalityfortheresearchgeologicaldisasterevaluationnrou【91ltozo

11、nethelandslidegeologicaldisasterhazards，establishesthenetworkgroupstomeasureandguardsagainst，whichcantakesmeasurestopreventcontrollandreducethelossoflireandpropertyitwilltakesimportantsocialsignificanceandbenefitteducean