海南省万洋4标项目30m箱梁预制施工技术方案编制：内部评审：内部审批：中交一公局海威工程建设有限公司万洋4标项目部二〇一七年六月目录1、工程概况...................................................51.1工程简介................................................51.2工程难点及特点..........................................52、编制依据....................................................63、施工部署....................................................63.1工期安排................................................73.2项目部对外社交网络图....................................73.3项目组织机构图..........................................73.4机械、人员配备..........................................83.5箱梁预制施工流程........................................95、钢筋加工与安装............................................105.1底板钢筋、腹筋绑扎.....................................105.1.1钢筋原材加工.....................................105.1.2现场钢筋安装.....................................115.2预应力管道加工安装.....................................115.2.1预应力管道加工...................................115.2.2预应力管道安装...................................126、模板安装、顶板钢筋绑扎.....................................126.1模板安装...............................................126.2顶板钢筋绑扎...........................................137、混凝土施工................................................137.1混凝土浇筑.............................................137.2拆模、养生.............................................177.3混凝土质量通病及防治措施...............................187.3.1混凝土蜂窝、麻面、孔洞............................187.3.2露筋..............................................197.3.3混凝土强度偏高或偏低..............................197.3.4混凝土裂缝........................................207.3.5外形尺寸偏差.....................................208、预应力张拉................................................218.1后张法张拉工艺流程.....................................218.2后张法张拉施工要点.....................................228.3张拉操作步骤...........................................249、压浆、封锚................................................259.1孔道压浆...............................................259.2封锚作业...............................................289.3注意事项...............................................2810、安全保证措施..............................................3010.1安全保证体系..........................................3010.2安全管理组织机构......................................3010.3安全目标..............................................3110.4安全方针..............................................3110.5安全教育..............................................3110.6钢筋施工安全注意事项..................................3210.7模板施工安全注意事项..................................3310.8混凝土浇筑安全注意事项................................3410.9夜间作业安全注意事项..................................3510.10雨季施工安全注意事项.................................3610.11施工用电安全注意事项.................................3610.12张拉、压浆施工安全注意事项...........................3711、文明施工措施..............................................38附件一：项目组织机构图........................................39附件2：30m箱梁张拉计算书.....................................40附件2.1基础数...
