南水北调中线工程矩形渡槽设计与施工方案研究  

Research on design and construction scheme of rectangular aqueduct of Middle Route Project of S-N Water Diversion

作　　者：谢三鸿 尤岭 李世平 

机构地区：[1]长江勘测规划设计研究院交通设计处,湖北武汉430010

出　　处：《人民长江》2010年第16期32-35,共4页Yangtze River

基　　金："十一五"国家科技支撑计划项目"南水北调工程若干关键技术研究与应用"重大项目课题"大流量预应力渡槽设计和施工技术研究"(2006BAB04A05)

摘　　要：南水北调中线一期工程陶岔至鲁山段穿越平原河流区,需架设渡槽作为输水建筑物。由于渡槽架线长、设计流量大,且工程质量及耐久性要求高,经多方案多种结构型式优化比选,设计推荐澧河渡槽型式采取简支矩形开口箱梁截面的预应力结构,槽墩型式采用钢筋混凝土空心墩结构。在施工工艺和架设方案上,针对所跨越宽漫滩河流的地形条件,经多方案比选,推荐采用节段拼装箱梁并用造桥机吊装的施工方案,并对预制阶段施加预应力的程序和施工工艺,作了较详细的阐述。Taocha-Lushan section of Middle Route Project of S-N Water Diversion crosses plain area,and the construction of aqueduct is needed for water conveyance.In aqueduct design over Lihe River,for its long span,large design discharge and high requirement of engineering quality and durability,through comparison and optimization of schemes and types,the design of simply-support prestressed structure with rectangular open box-beam cross-section and the reinforced concrete hollow structure for pier are adopted.According to terrain condition of wide flood plain,sectioned assembling box-beam and bridge fabrication machine are chosen for construction.The procedure and construction technology for applying prestress of structure in precast stage are described in detail.

关 键 词：水工渡槽 矩形箱梁式渡槽 预应力结构 渡槽支墩 施工方案 南水北调中线一期工程 

分 类 号：TV67[水利工程—水利水电工程]