新建深茂铁路江门至茂名段JMZQ-7标（DK341+000～DK366+600）混凝土专项施工方案编制：复核：审核：中铁二十三局集团有限公司深茂铁路JMZQ-7标工程指挥部二〇一五年五月中铁二十三局集团有限公司混凝土专项施工方案目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc420141119"1.编制依据、范围、原则PAGEREF_Toc420141119\h1HYPERLINK\l"_Toc420141120"1.1编制依据PAGEREF_Toc420141120\h1HYPERLINK\l"_Toc420141122"1.2编制原则PAGEREF_Toc420141122\h1HYPERLINK\l"_Toc420141123"2.工程概况PAGEREF_Toc420141123\h2HYPERLINK\l"_Toc420141124"2.1工程情况简介PAGEREF_Toc420141124\h2HYPERLINK\l"_Toc420141125"2.2工程特点PAGEREF_Toc420141125\h3HYPERLINK\l"_Toc420141126"3.一般混凝土施工PAGEREF_Toc420141126\h3HYPERLINK\l"_Toc420141127"3.1施工准备PAGEREF_Toc420141127\h3HYPERLINK\l"_Toc420141128"3.2模板工程PAGEREF_Toc420141128\h4HYPERLINK\l"_Toc420141129"3.2.1涵洞模板及支架PAGEREF_Toc420141129\h4HYPERLINK\l"_Toc420141130"3.2.2模板工程常见质量通病及预防措施PAGEREF_Toc420141130\h4HYPERLINK\l"_Toc420141131"3.3混凝土施工方案PAGEREF_Toc420141131\h5HYPERLINK\l"_Toc420141132"3.3.1混凝土拌和与运输PAGEREF_Toc420141132\h5HYPERLINK\l"_Toc420141133"3.3.2混凝土浇筑振捣PAGEREF_Toc420141133\h5HYPERLINK\l"_Toc420141134"3.4混凝土拆模PAGEREF_Toc420141134\h6HYPERLINK\l"_Toc420141135"3.5混凝土养护PAGEREF_Toc420141135\h8HYPERLINK\l"_Toc420141136"4.大体积混凝土施工PAGEREF_Toc420141136\h8HYPERLINK\l"_Toc420141137"4.1大体积砼温度控制值、特点PAGEREF_Toc420141137\h8HYPERLINK\l"_Toc420141138"4.1.1大体积砼浇筑时的各种温度值PAGEREF_Toc420141138\h8HYPERLINK\l"_Toc420141139"4.1.2大体积砼特点PAGEREF_Toc420141139\h9HYPERLINK\l"_Toc420141140"4.2大体积砼温度计算PAGEREF_Toc420141140\h9HYPERLINK\l"_Toc420141141"4.2.1混凝土内部最高温度计算PAGEREF_Toc420141141\h9HYPERLINK\l"_Toc420141142"4.2.2混凝土表层（表层下50～100mm处）温度计算PAGEREF_Toc420141142\h10HYPERLINK\l"_Toc420141143"4.3施工工艺PAGEREF_Toc420141143\h12HYPERLINK\l"_Toc420141144"4.4施工准备PAGEREF_Toc420141144\h12HYPERLINK\l"_Toc420141145"4.4.1材料选择PAGEREF_Toc420141145\h12HYPERLINK\l"_Toc420141146"4.4.2混凝土配合比PAGEREF_Toc42014