石武客运专线预制箱梁冬季施工技术

在分析混凝土冬季施工工程原理及要点、混凝土拌和物热工计算的基础上，介绍石武铁路客运专线预制箱梁冬季施工中，混凝土拌和、运输、浇筑、箱梁养护及张拉、压浆封锚等所采取的措施和工艺，对确保冬季施工条件下大体积箱梁预制的施工质量具有积极的作用。

Technology of Passenger Dedicated Line Precast Box Girder Construction in Winter

On the basis of analyzing the concrete construction principles and points, conducting heat engineering calculation of concrete mixture in winter, it introduces the adopted measures and technique in the following aspects in Shijiazhuang-Wuhan Railway Passenger Line like concrete mix- ture, transportation, pour, box girder maintenance, stretch-draw and grouting anchor seal, so as to guarantee the construction quality of large-volume precst box girder construction in winter.