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蒙城县2014年“两区”二期道排项目施工 现浇箱涵工程模板与支架专项施工方案

编制人： 审核人： 审批人：

编制单位：山西建筑工程（集团）总公司蒙城2014年“两区”二期道排

项目施工项目部

编制时间：二零一四年十月三十一

目 录

一、工程概况············································································································3

二、施工组织和管理机构························································································3

三、箱涵涵身施工工艺流程····················································································4

四、施工进度计划····································································································5

五、箱涵涵身施工要点····························································································5

六、扣件钢管顶板模板支架计算············································································6

七、腹板（墙）模板计算························································································7

八、施工技术要求····································································································7

九、安全管理···········································································································12

十、确保工程质量的措施·······················································································15

十一、文明施工·······································································································16

十二、预防伤害安全生产事故应急救援预案························································17

十三、附件················································································································23

附件1·························································································································23

附件2·························································································································29

附件3·························································································································35

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一、工程概况

蒙城县2104年“两区”二期道排项目施工工程共有箱涵一座，为纬一路马沟涵，本箱涵为4.0X2.5m的三孔箱涵，中心桩号为K0+610，箱涵中心线为道路中心线交角为86.136°，涵长13.95m，采用整体式钢筋混凝土涵身，扶壁式挡土墙翼墙，单箱涵净宽4.0米，净高2.5米，顶板厚度34cm，腹板厚3.2m，涵身混凝土为C30现浇混凝土，涵洞及挡墙基础下铺设10cm厚素C20混凝土垫层。

二、施工组织和管理机构

项目经理：张德良 质检员： 项鹏

项目技术负责人：李晓刚

施工员：童大柱施工员：许滨材料员：李世礼

安全员：樊斌资料员：吴倩质检工程师：项鹏

钢筋班组 模板班组 混凝土班组 其他综合班组 - 3 -

三、箱涵涵身施工工艺流程

测量放样 碎石垫层施工 钢筋检验 浇注垫层砼 钢筋制作 绑扎底板34cm及腹板32cm钢筋 安装模板 浇注底板34cm及腹板32cm砼养护 模板拆除 搭设顶板支架和模板 绑扎腹板及顶板钢筋 安装腹板模板 浇筑顶板和腹板砼 砼养护 拆除模板和支架

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四、施工进度计划

见附件3。

五、箱涵涵身施工要点

1、编制依据

①施工图设计文件及地勘报告。

②国家有关的政策、法规、施工验收规范和工程建设标准强制性条文（城市建设部分），以及现行有关施工技术规范、标准等。

③《公路桥涵设计规范》； ④《公路桥涵施工技术规范》； ⑤《公路桥涵施工手册》；

⑥《建筑施工模板安全技术规范》JGJ162-2008； 2、测量放样

箱涵测量放样时，应注意核对箱涵纵横轴线的地形剖面图是否与设计图相符，应注意箱涵长度、箱涵标高的正确性。对斜交箱涵、曲线上和陡坡上箱涵，应考虑交角、加宽、超高和纵坡对箱涵具体位置、尺寸的影响，并注意锥坡、翼墙、一字墙和箱涵墙身顶部和上下游调治构造物的位置、方向、长度、高度、坡度，使之符合技术要求。

3、C20砼垫层

10cm的砼垫层砼采用商品砼，商品砼采用搅拌车运至现场模浇注，振捣密实，采用覆盖土工布浇水保湿养护；

5、箱涵涵身施工

箱涵涵身竖向施工施工分2个阶段，第一阶段浇筑至底板内壁以上30cm；第二阶段浇筑剩余部分，2次浇筑的接缝应保证有良好的衔接面（粗糙、干净并不得有堆落的混凝土和砂浆）。

（1）模板安装前，应由测量放出承台和腹板的边线和中轴线，并用墨斗弹出边、轴墨线，放样后经监理检查，合格后安装模板；

（2）箱涵顶板底模、腹板侧模采用12mm、15mm厚木胶合板做面板，箱涵腹板模板支撑体系内楞采用5cm×10cm方木，间距20cm、外楞采用Φ48×3.0mm及Φ14对拉螺栓，间距40

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