昆明南市區(qū)地面沉降研究.pdf

1、昆明理工大學(xué)碩士學(xué)位論文昆明南市區(qū)地面沉降研究姓名：孟國濤申請學(xué)位級別：碩士專業(yè)：礦產(chǎn)普查與勘探指導(dǎo)教師：李峰20031231——一些塑竺AbstractAccordingtothedatumofthesecondgradelevelingfrom1987to1998，significantlandsubsidencewasfoundinKunmingcityTheSOuthKunmingcityisthedominatingareao

2、flandsubsidence，whosetotalareais180km2，andhasformedtwoveryprominenceinfundibularareasTheoneislocatedinGuangwecun—Xiaobanqiao—Wujiabaairport，theotherisaroundYuhucun—FuhaicunThemostprominencesubsidenceareaisXiaobanqiaocent

3、er，whichamountedto2362mm(from1987tel998)What’Smore，thelandsubsidenceisacceleratingandexpandingInsouthKunmingcity，stratum，lithographiccharacters，tectonics，geomorphologyandneotectonisminfluencethegroundwater’Sexistence，dis

4、tributingandseepageVoidwaterisaffluentinthelakedepositvoidofCainozonic，whichhasmultiplayerstructure，andisdiscontinuousKarstwateriSaffluentincarbonatiterockformationofPalaeozoic，whichformationareabroad，thick，andwateryTheK

5、arstwateristhemostimportanttypeofgroundwaterinSouthKunming，anditswaterlevelisfleetlyfallinginsomeareaswhereliesagreatnumherofpumpingwellsOntheotherhand，inSouthKunming，theQuaternarysoilissoftandclayey，stratumstructuresvar

6、yalot，theengineeringcha，racte，rOfshallowsoilisbadness，andlacustrine—claysoilhasmarkedanisotropycharacteristicInshort，thehydrogeologyconditionsandtheengineeringgeologyconditionsarevitalgeologicalfactors，whichinfluencetheo

7、ccurrenceanddevelopmentoflandsubsidence，andleadittobewhatitiscurrentlyGroundwaterpumping，architectureloading，constructing，soilnatureconcretionandneotectonismaretogetherplayingan。：importantroleonlandsubsidenceEachcomplica

8、tionhasitsoonncoti。onwithlandsubsidence：(1)Becausethepatternoflandsubs。idence。inSouthKunmingisdislocationbasinpattern，theinterfacebetweenQuaternarysoilandbedrockcannotseparategroundwaterSOthatthevoidwaterbearingbedmaycom