西安地鐵二號(hào)線沿線地裂縫成因機(jī)理分析.pdf

1、分類號(hào)：P6421071020050357漣步犬海碩士學(xué)位論文西安地鐵二號(hào)線沿線地裂縫成因機(jī)理分析導(dǎo)師姓名職稱申請(qǐng)學(xué)位級(jí)別論文提交日期學(xué)位授予單位王靜李新生副教授答辯委員會(huì)主席王志碩教授級(jí)高工學(xué)位論文評(píng)閱人閏文中高工李同錄教授ABSTRACTGroundfractureisatypicalregionalgeo—hazard，whichbringdamagetovarioustypesofbuildings，transportation

2、facilities，citylifelineprojectsandthelandresourcesThehazardhasbroughtenormouseconomiclosstotheconstructionofXi’allforseveralyears，andbroughtinconveniencetolivesofthepeopleNowXi’anSubwayisunderconstructionAnumberofgroundf

3、racturesarecrossedbythesubwaywhichwillbringadverseeffecttothesubwayconstructionandoperationTherefore，itisofgreatsignificancelesearchonthedistribution，activityregularityandgeneticmechanismofgroundfracturesBasedontheresult

4、softheinvestigationofgroundfracturesalongXi’anSubwayLine2andpastinformation，thedistributionandmovinglawsofgroundfracturesalongsubwayareintroducedfirstlyGroundfracturesalongthesubwayincludeXi’angroundfractures，groundfract

5、uresinChang’anDistrictofXi’all，andgeotectonicgroundfractureNOfOThereare11mainfracturesand2secondaryfracturesofXi’angroundfracturesand3Chang’angroundfracturescrossedbyXi’anSubwayLine2Secondlygeneticmechanismofgroundfractu

6、resalongthesubwayisanalysed，andXi’angroundfractureismainlyanalysedAlargenumberofdataaboutexploration，groundwaterandsurfacesubsidenceisanalysed，itshowsthatXi’angroundfractureisonthebaseoftectonicactivity，andtheextraordina

7、rymovementofitismainlycausedbypumpingdeep—seatedconfinedwater；othersfracturesalongthesubwaywerecausedbydifferentstratumstructurenearthegeomorphicboundarydifferentphysicalandmechanicalpropertiesofgroundinthesamestrata，ort

8、ectoniceffectsAtthesametime，theunequalsettlementofbothsidesofthefracturesbeltcausedbypumpinggroundwaterissimulatedbyusing2Dfiniteelementsoftwareinthispaperandtheresultsshowthatpumpinggroundwateracceleratesthemovementofgr

9、oundfracturebasedonregmaticstratumstructureFinallythepreventionandcountermeasuresofthegroundsubsidencehavebeenputforwardbyanalyzinginfluencingfactorsandthedisastercausingmechanismofthegroundfractureKeywords：Xi’anSubwayXi