北京地铁施工邻近桥梁的风险等级划分及施工对策研究

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1、北京交通大学硕士学位论文北京地铁施工邻近桥梁的风险等级划分及施工对策研究姓名：董惠定申请学位级别：硕士专业：桥梁与隧道工程指导教师：李兆平20060301北京交通大学硕士学位论文ABSTRACTInlargecities，therc盯em孤ycro豁oVefs，ViaducIs锄dskyscrapers，wllicharebasedonpilefoundati∞s，duet0therestricli0Ⅱofsub、vaylinc“弘mentandundeIgronndspace，thesubwaystnlcmremi曲thaVetogounder’besideort111．ou曲the

2、sepikfbundations．Thereexistsl洲ofadjaccntconstnlctionpmblem．whenthesubwaypmjectScarryoutconstructionactivitiesadiacenttobridlrefbundations，theywiUleadt0t量leIIlovementofsu枷nding∞il，柚dthesoilmovementwinactonpilefoundationsresumnginaddi“onaldisplacemem蛐dforce，whichwil王iⅡ：fluenoethestdbilityandsafety

3、ofpikfcmndation．Thisthesisanalyzes明diⅡvestigatcstheabove-mentionedpmblcms，whichmainly咖tai璐followingconchsions：1)thmughtheinves衄ationonBeijillgsubwayline4，5粕d10，theclassifica石onof蛐bwayconst九lctionadjaccⅡttobfidgefoundationswassuggested；21ca耐edoutnumericalsiInula虹0nonseve蹦typicalnl曲e1consmlctionsa

4、djaccⅡttopilefoundati彻situatioⅡs，whichVcrifiedtheprim盯yin日uenc主ngfactorofadjacent∞nstru‘：tionislllespatialpositionrelationshipbetweensubwayproject粕dbridgefoundation，硒weUastlleIationalityoftheda辐难cationof∞bway00ns讯IctioⅡadjacenttoMdgefbundations：31accordjngtothenumcrjcalsimulationresultsandthcadj

5、∞cntconstmctionclassifjcation，advisedthed黯si右∞tionofrisk目1desforsubwavconstnIctionadiaceⅡttobridgefcmndations；41offercdthesug驿stedconstructionmeasuIesforc0ⅡstrIlctionconditionswithdi仃eremrisk蟹，ades，andprovidedtheactIlaliIlst胁cesofconstnlctionmeasurestakcninBe玎ingSubwayLine10．nesubwayconstrudiona

6、djacenttobridgefoundationsissystcmenginee血gwithcomplicatedtecllnology．Thercse盯ch0fthistllesisdete咖iⅡedtheinnuencingfactorandiIIfluencing砌geofadjacentsubwayconstnlctiononpilefoundations，aIIdsuggestedtheriskgradeclassification，whichsh砒lpr0V主derclcvaIltreferencesforsimiIarconstlllction．Keywords：sub

7、wayconstnlction，brjdgefoundation，adjacentconstnlction，daSsificati咖ofadjacentconstrucljon，肌mericalsimulation，riskgfa如cons虹uctioncounte呻eaSufes．．H．第一章绪论1．1论文研究背景随着我国城市的快速发展和城市人口的不断增多，地面交通拥堵现象十分严重，已经无法保证人们对出行快速准时便捷的需要，因此各大城市对于大