白马河、惠河连续梁专项方案.doc

济南至徐州高速公路5合同段 （35+55+35）m连续箱梁专项施工方案目 录1.编制说明11.1.编制依据11.2.编制原则12.工程概况22.1.设计说明22.2.连续箱梁结构形式32.3.支座布置42.4.主要工程量表(双桥全幅总工程数量)43.总体施工安排及工艺流程图54.工程管理的组织机构设置85.施工队伍设置96. 本工程所用的主要机械设备及物资106.1 主要机械设备106.2 主要测试设备表116.3 主要周转材料表127.主要施工方案及施工工艺137.1 施工步骤137.2 0#块施工167.2.1 临时固结支墩施工167.2.2支座垫石及支座安装187.2.3 支撑体系197.2.4 模板支撑架安装227.2.5 支架预压227.2.6 模板施工247.2.7 钢筋施工247.2.8混凝土浇筑257.2.9 0#块落架267.3 箱梁悬浇段施工277.3.1挂篮组成277.3.2挂篮安装277.3.3 悬浇挂篮预压357.3.4 钢筋加工387.3.5梁段砼浇筑387.3.6 预应力筋张拉397.3.7孔道压浆407.3.8 挂篮施工注意事项407.3.9 挂篮拆除427.3.10挂篮前移457.4边跨现浇段施工467.4.1 地基处理467.4.2 支架布置46 7.4.3 钢筋、模板以及砼浇筑477.5合拢段施工487.5.1合拢段及体系转换顺序487.5.2合拢段临时锁定487.5.3合拢段施工要点497.5.4钢筋、模板以及砼浇筑507.5.5 通长束的留孔、穿索、张拉、压浆507.6 桥面施工527.6.1、高程及平整度控制537.7 现场施工控制538、施工主要措施55 8.1安全防护措施55 8.2质量保证措施56 8.3季节施工质量保证措施58 8.4 线形控制技术措施69 8.5工期保证措施69 8.6安全文明保证措施70 8.7环境保护措施71 8.8主要安全管理措施728.8.1.消防安全管理措施728.8.2.高空坠落预防措施758.8.3.现场漏电的预防措施768.8.4.夜间施工安全防范措施808.8.5张拉压浆安全管理措施838.8.6通行安全防护措施：848.9突发事件应急救援预案858.9.1.突发事件应急救援管理组织机构858.9.2.应急断电和混凝土供应858.9.3.突发事件应急救援培训制度868.9.4.日常检查和演习868.9.5.救援物资的准备878.9.6.伤亡事故87附件1、0#块支架计算书 附件2、边跨支架计算书 附件3、挂篮施工设计计算书 白马河大桥、惠河大桥（35+55+35）m 连续梁专项施工方案1.编制说明1.1.编制依据1.1.1.山东省交通规划设计院编制的两阶段施工图设计及相关配套图纸；1.1.2.中铁二十三局编制的济鱼高速公路LQSG-5标段实施性施工组织设计。1.1.3.现场踏勘调查所获得的工程地质、水文地质、当地资源、交通状况及施工环境等调查资料。1.1.4.交通部现行的各种技术规范、验收标准。1.1.5.国家现行的其他有关法律、法规。1.1.6.业主、总监办及驻地办对本工程安全、质量、工期的要求。1.2.编制原则1.2.1.严格按照业主提出的工期要求，科学的安排施工进度、作业程序，认真组织劳动力，采取平行和交叉作业的施工方法，控制施工进度，确保施工工期。1.2.2.合理配置生产资源，采用先进的技术装备，做好机具选型配套，提高施工机械化水平，实施标准化作业，降低工程成本支出。1.2.3.采用成熟的施工技术和先进的施工工艺。2.工程概况2.1.设计说明2.1.1.白马河大桥为规划五级航道，跨越白马河主跨上部采用（35+55+35）m悬浇箱梁，主跨桥墩采用薄壁墩。该连续梁为预应力混凝土连续箱梁，采用悬臂法施工。与白马河相交88。该桥主墩基础均由6根1.8m钻孔桩组成，桩长53m；承台为12m7.5m2.5 m；主墩均为圆端形薄壁墩。边墩基础由4根1.5m钻孔桩组成，桩长45m，承台尺寸10m6.25m2m；边墩均为矩形薄壁墩。主线方向白马河大小桩号堤坝均为土路，水深2.24.0米。桥台采用肋式台，桥台处使用D80伸缩缝，分联墩、共用墩处使用D80或D160伸缩缝，大小桩号桥台均设置搭板，小里程侧长12米，大里程侧长10米。引桥25m小箱梁均采用圆板式橡胶支座，联端采用GYZ35066mm、GYZF425065mm滑板支座；主跨悬浇箱梁采用盆式支座。桥梁内、外侧均采用SA级防撞护栏，宽0.5m。2.1.2.惠河大桥为规划五级航道，跨越惠河主跨上部采用（35+55+35）m悬浇箱梁，主跨桥墩采用薄壁墩。该连续梁为预应力混凝土连续箱梁，采用悬臂法施工。与惠河相交78。该桥主墩基础均由6根1.8m钻孔桩组成，桩长52m；承台为12m7.5m2.5 m；主墩均为圆端形薄壁墩。边墩基础由4根1.5m钻孔桩组成，桩长52m，承台尺寸10m6.25m2m；边墩均为矩形薄壁墩。主线方向白马河大小桩号堤坝均为土路，水深2.24.0米。桥台采用肋式台，桥台处使用D80伸缩缝，分联墩、共用墩处使用D80或D160伸缩缝，大小桩号桥台均设置搭板，长度均为10米。引桥35m小箱梁均采用圆板式橡胶支座，联端采用GYZ42588mm、GYZF430076mm滑板支座；主跨悬浇箱梁采用盆式支座。桥梁内、外侧均采用SA级防撞护栏，宽0.5m。2.2.连续箱梁结构形式由于白马河大桥和惠河大桥悬灌梁构造一样，以下方案两座桥均适用。梁体为单箱单室、变高度、变截面结构。箱梁顶宽13.25m，底宽7.25m。顶板厚度3085cm；底板厚度30110cm，按直线线性变化；腹板厚5080cm，按折线变化。底板、腹板、顶板局部向内侧加厚。全联在端支点、中跨跨中及中支点处共设5个横隔板，横隔板设有孔洞，供检查人员通过。本联箱梁全长125m，计算跨度为（34.92+55+34.92）m，中支点处截面中心线处梁高3.8m，跨中直线段及边跨直线段截面中心处梁高2m，梁底下缘按二次抛物线变化。箱梁顶面从中心线向两边6.625m范围内呈三角形坡度，坡度为2%。全梁采用悬臂浇筑法施工，边跨梁长35m，分为8个梁段，中跨梁长55m，分为12个梁段，4主墩顶各设一节0#梁段，全梁共30个梁段。 梁段内设置了纵、横、竖三向预应力筋体系，纵向、横向预应力体系采用fpk=1860MPa，弹性模量为Ep=195GPa，公称直径为15.2mm高强度、低松弛，钢绞线，符合GB/T5224国家标准；竖向预应力采用fpk=930MPa，弹性模量为Ep=200GPa预应力混凝土用螺纹钢筋。管道形成采用塑料波纹管，锚具应符合预应力锚具、夹具和连接器（GB/T14370-2000）。2.3.支座布置支座安装时支座下板摆十字线与支承垫石十字线重合，支座上板安装时需要设置纵向预偏量。支座采用盆式橡胶支座。123412561-GPZ()4SX(双向活动支座) 4- GPZ()GD(固定支座)2-GPZ()4DX(单向活动支座) 5- GPZ()12.5SX(双向活动支座)3-GPZ()12.5DX(单向活动支座) 6- GPZ()12.5DX(单向活动支座)2.4.主要工程量表(双桥全幅总工程数量)序号工程项目说明单位数量1C50混凝土梁体m6262.12S15.2钢绞线fpk=1860MPat1793JL32精轧螺纹钢全梁t45.24YM15-19锚具套4005YM15-22锚具套486BM15-3锚具横向束张拉端套10087BMP15-3锚具横向束固定端套10088YGM-32锚具竖向束套20809SBG-100Y塑料波纹管纵向束m151410SBG-55B塑料波纹管横向束m12166.611SBG-50Y/57Y塑料波纹管竖向束m6478.1212HRB400钢筋梁体t2085.4213Q235钢板t37.614盆式橡胶支座4000KN单向/双向套8/81512500KN固定/单向套4/41612500KN单向/双向套4/417梁端伸缩缝伸缩量160mmm/道102.8/43.总体施工安排及工艺流程图白马河大桥连续梁工程计划于2014年11月25日开工，根据最短需要的工期，梁部合拢时间为2015年5月15日，总工期170天，主体施工工期155天。惠河大桥连续梁工程计划于2014年11月10日开工，根据最短需要的工期，梁部合拢时间为2015年4月30日，总工期170天，主体施工工期155天。 白马河大桥主桥施工进度安排序号项目名称计划开工时间计划完工时间备注30#块2014/11/252014/12/154流水段（6段）2014/12/162015/03/285边跨合拢2015/03/292015/04/136中跨合拢2015/04/142015/05/157转换体系，移除挂蓝2015/05/162015/05/30惠河大桥主桥施工进度安排序号项目名称计划开工时间计划完工时间备注30#块2014/11/102014/11/304流水段（10段）2014/12/12015/03/285边跨合拢2015/03/292015/04/136中跨合拢2015/04/142015/04/307转换体系，移除挂蓝2015/5/12015/5/15 总体工艺流程图Error! 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