新建天津至保定铁路JBSG-1 标段冬季施工方案编制：审核：审批：2024 年 11 月 5 日目 录一、工程概况........................................................11.概述..........................................................12.冬季施工期时段................................................1二、编制依据........................................................1三、总体施工方案....................................................2四、施工方法和技术措施..............................................31.混凝土工程....................................................31.1 混凝土冬季施工的一般要求.................................31.2 热工计算.................................................41.3 原材料加热及保温.........................................61.4 混凝土拌合和运输.........................................61.5 混凝土浇筑...............................................81.6 混凝土养护...............................................82.钢筋工程.....................................................103.钻孔桩施工...................................................114.承台施工.....................................................115.墩身、墩帽施工...............................................116.箱梁预制施工.................................................126.1 箱梁预制................................................126.2 预应力孔道压浆及封锚....................................147.箱梁架设施工.................................................157.1 支座灌浆................................................157.2 架梁设备使用维护保养....................................167.3 架梁施工安全............................................168.连续梁施工...................................................179.桥面附属设施施工.............................................1810、砌体工程...................................................1810.1 材料要求...............................................1810.2 施工措施...............................................1911、路基工程........................
