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1、西南交通大學碩士學位論文武廣客運專線深厚軟土地基處理技術研究及沉降計算分析姓名：崔維秀申請學位級別：碩士專業(yè)：道路與鐵道工程指導教師：蘇謙20070101西南交通大學工程碩士研究生學位論文第1I頁AbstractWiththedevelopmentofnationaleconomyandimprovementofpeople’Slivingstandard，thedemandofspeedandcomfortofvehiclewasincreasinglyimproved，fordedicatedpass
2、engerline，thedemandofsettlementofsubgradewasstricterandstricter．ThedesignedspeedofWuhan—GuangzhoudedicatedpassengerlineWasmorethan200kin／h,whichWasrcqmredIopaveballastlesstrackatatime,andthepost-settlementofgroundWaslessthanorequalto1．5em．Someofthesubgrad
3、eWasonthede印softsoilground,while，thesoftsoilandtheincrustationofbqlrfacelayerdistributedasymmetrically．Theennventionalgroundtreatmentswerehardlypossibletoenntrolthepost-settlementofsubgrade．So，thestlldyWasveryexigent．Groundtreatmentsadoptedinsoftsollsubgr
4、adeofWuhan—Guangzhoudedicatedpassengerline，wereresearchedandanalysedwithprogramming,fimteelementanalysisandmodelexperiment．Firstly,commongro岫dtreatmentsofsoftsoilgroundwereintroduceddetailedly，thecalculationalmethodsofsettlementforcompositefoundationandpi
5、lefoundationwereconsulted,calculationalmethodsofsettlementofgoundtreatmentwerereasearched，andprogrammedwithVisualBasiC6．0．ThengroundtreatmentsadoptedinsoftsoilsubgradeofWuhan—Guangzhoudedicatedpassengerlinewereresearchedandanalysed，post—settlementwerecalc
6、ulatedandanalysed，whichprovidedreferencesforthedesignofsungradeofWuhan—Guangzhoudedicatedpassengerline．Afterwards。anewgroundtreatment--pile-boardst丌∞tllfeadoptedinWuhan—Guangzhoudedicatedpassengerlinewasresearchedandanalysedwithreducedscale(hlo)dynamicmod
7、elexperiment，whichprovidedreferencesfor．thescientificresearchanddesignofpile—boardstructure．Lastly，forecasttechnicofsettlementofgroundWasresearchedandanalysed．Thereasonableforecastmethodsweregived．a(chǎn)ndsettlementofgroundonatimeinthefuturewasforecastedaccord
8、ingtosomeobservationdata．Keywords．．softsoilground；settlementcalculation；programmingcalculation；dynamicmodelexperiment；settlementforecast西南交通大學碩士研究生學位論文第1頁第1章緒論1．1研究背景與意義我國鐵路正在實現(xiàn)跨越式發(fā)展，新建高速客運專線和改造既有鐵路提速建設方興未艾。由于高速行車要求
