西环快速路北延工程XHB-LQ0102标G312国道跨线连续箱梁拆除方案编制：审核：批准：中铁上海工程局有限公司西环快速路北延工程XHB-LQ0102标项目经理部2013年7月28日目录1.工程概况....................................................................................................................................51.1工程任务及目的................................................................................................................51.2旧桥概况............................................................................................................................51.3旧梁现状..........................................................................................................................71.4旧桥结构形式....................................................................................................................91.5现场交通状况..................................................................................................................111.6沿线管线情况..................................................................................................................121.7桥梁拆除背景和特点.....................................................................................................122编制依据....................................................................................................................................133.总体拆除方案..........................................................................................................................133.1拆除原则........................................................................................................................133.2拆桥总体方案................................................................................................................143.3拆桥顺序..........................................................................................................................154第三联拆除和交通疏解详细顺序（单幅）..............................................................................165.第三联临时支撑整体切割吊装法拆桥资源配置...................................................................234.1围挡资源配置分析..........................................................................................................234.2临时支撑基础分析..........................................................................................................244.3切割支撑需求分析..........................................................................................................244.4跨中支撑的需求分析......................................................................................................274.5墩顶实体梁防倾覆支撑的需求分析..............................................................................284.7防撞墙、翼缘板切割资源配置......................................................................................294.8主体切割和墩顶切割资源配置......................................................................................294.9资源配置汇总..................................................................................................................305施工工期分析............................................................................................................................315.1第三联拆除工期分析...................................................................
