粉房湾长江大桥及引道工程总体设计

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1、桥梁建设2012年第42卷增刊1(总第216期)BridgeConstruction，Vo1．42，SupplementNo．1，2012(TotallyNo．216)23文章编号：1003—4722(2012)S1—0023—05粉房湾长江大桥及引道工程总体设计权戈冰(重庆市交通规划勘察设计院，重庆401121)摘要：粉房湾长江大桥及引道工程是连接江津与重庆主城区的快速通道，全长6．066km。根据项目所处位置建设条件、技术标准，将该通道设计为由1座长江大桥、2座长隧道、3座立交共6个节点工程相互连接构成的道路。6个节点依次为：粉房湾长江大桥主桥采用双塔双索面钢桁梁

2、公轨共用斜拉桥结构，津西立交采用迂回式四路交叉立交，艾坪山隧道采用小净距十分离式的组合式隧道(双向4车道)、江洲立交采用定向匝道和环形匝道互相组合的五层组合式立交、打雷嘴隧道采用连拱+小净距+分离式的组合式隧道(双向6车道)、小垮立交采用单喇叭+部分子叶式复合单喇叭组合完全互通立交。该项目全线考虑轨道通道，长江大桥与隧道采用公轨共建预留。关键词：总体设计；斜拉桥；互通式立体交叉；隧道中图分类号：U412．12；U448．27文献标志码：AOverallDesignofProjectofFenfangwanChangjiangRiverBridgeandItsAppro

3、achRoadsQUANGe—bing(ChongqingCityTransportPlanning，SurveyandDesignInstitute，Chongqing401121，China)Abstract：TheprojectofFenfangwanChangjiangRiverBridgeanditsapproachroads，6．066kmintotallength，constitutearapidcorridorconnectingtheJiangjinDistrictandtheChongqingCityproper．Accordingtothecon

4、structionconditionsofthesitewheretheprojectislocatedandthetechnicalstandardsoftheproject，thecorridorisdesignedasaroadwayinterconnectedby1majorbridgecrossingtheChangJiangRiver，2longtunnelsand3interchanges，totallyfallinginto6nodesofsub—projects．The6nodesofthesub—projectsare：themainbridgeo

5、fFenfangwanChangjiangRiverBridgethatemploysthelightrail——cum—-roadsteeltrussgirdercable—stayedbridgewithdoublepylonsanddoublecableplanes；theJinxiInterchangethatemploysthedetourfour—wayintersectingandgradeseparationstructure；theAipingHillTunnelthatemploysthesmallnetspacingandseparatedcom

6、binedtunnel(dualtwolanes)；theJiangzhouInterchangethatemploysthe5-levelcombinedinterchangewithdirectionalrampsandloopramps；theDalei—zuiTunnelthatemploysthejoint—arch，smallnetspacingandseparatedcombinedtunnel(dualthreelanes)andtheXiaowanInterchangethatemploysthecombinedcompleteinterchange

7、ofthesingletrumpetandpartialeotyledonaltype．Onthewholelineoftheproject，theopeningofthelightrailtransitisconsideredandthelightrail——CUre——roadfunctionofboththebridgecrossingtheChangJiangRiverandthetunnelshasbeenreserved．Keywords：overalldesign；cable—stayedbridge；interchange；tunne