深水桩基施工振动对既有桥梁的影响研究

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1、国内图书分类号：U443．16国际图书分类号：西南交通大学硕士研究生学位论文深水桩基施工振动对既有桥梁的影响研究年级：2QQ主姓名：蓝盎盟申请学位级别：亟±专业：播鎏皇隧道王猩．．指导教师：差主召亡2007年3月西南交通大学硕士研究生学位论文第fI页AbstractWiththecontinuousconstructionsofbridgesinrecentyears，asalifelineproject，theconstructingoscillationofthesebridgeshavebecomean

2、increasinglyseriousproblem，Intheurbanconstructionespeciallyintheextensionproject，theapplicationofpilefoundationhasbeenalreadymoreandmoreextensive．Butbecausepileconstructionisoftenacompelledvibrationcourse，soitregularlyinvolvesnproblemthattheprojectshakingle

3、adstothesafeassurancequestionsofbuildingfacilities、livesandpropertiesaround．Thedevelopmentofthetechnologyoftheprojectvibrationtestshasofferedscientificsupportforsolvingthiskindofproblem．Butbecauseofthecomplexityofthevibrationcourseunderground，howtoconfirmth

4、erationalcalculationmodelandoptimizethemeansoftestingandthemethodofestimatingisthekeypointofexaminingoscillation．ThisthesisusesFo·Kaihigh··speedextensionprojectthatthevibrationofbasicconstructioninJiujiangbridgemainmoundasthebackground，havemainlyfinishedthe

5、followingaspects：(1)ThroughcontrollingthedegreeandrangethatthebasicconstructionofextendingJiujiangbridgemainmoundaffectstwoexistingJiujiangbridgespierpileonitsbothsidesandtheupperstructureofbridges，weconfirmtherationalmonitoringscheme．(2)Onthebasisofevaluat

6、ingthesituationoftwomainJiujiangbridgesbeforeandafterconstructingonthebridgemainmoundextension。thruughcalculatingandanalyzingthemotiveforceperformanceofunderconstructingperturbation，thisarticleestimatesthesecurityofthetwoexistingbridgesduringworkingandevalu

7、atestheeffectsbroughtbytheconstructionofextendingJinjiangbridgemainmoundinanall·roundway．(3)ThisthesisofferssomeconsultingsuggestionsforabasicconstructionmethodandcraftofextendingJiujiangbridgemainmoundinrealtime，andassuresthesecurityoftheexistingbridgesdur

8、ingconstructingfinally．西南交通大学硕士研究生学位论文第1lI页KeyWords：Pilefoundation；Vibrationtest；constructingoscillation；Safety西南交通大学硕±研究生学位论文第t页第1章}绪．论1．1施工振动对既有结构影响的研究现状现在我国的基础建设越来越多，并在建设中用到了大量的建筑机械．由于很多场合机械的施工现场离现有