大体积混凝土专项施工方案3.pdf

工程第一标段进口段底板 大体积混凝土专项施工方案 编制： 审核： 批准： ** 公司 *** 工程项目经理部 2016 年 1 月 30 日 目 录 一、工程概况 ··································································································· 1 二、编制依据 ··································································································· 1 三、工程施工特点 ····························································································· 1 四、施工准备 ··································································································· 2 五、施工方法 ··································································································· 3 六、温控措施 ··································································································12 七、冬季施工措施 ····························································································13 八、突发不能连续施工情况的应急措施 ································································14 九、质量保证措施 ····························································································15 十、安全管理措施 ····························································································16 十一、文明施工环境保护措施 ············································································16 一、工程概况 本工程为 ****** 工程施工第一标段工程，其中进口段底为拆除重建项目。底 板顶面高程为 31.6m （吴淞高程系）。底板中间厚为 1.4m，前后设有齿槽，前齿 槽（紧临闸室段底板）底宽为 4m，顶宽为 5m，深 0.7m，此段为闸墩延长段；后 齿槽底宽为 1.5m，顶宽为 2.2m，深 0.7m。底板平面为正梯型设计， 其上宽 23.58m， 下宽 27.12m，长 15m。底板及齿槽下设 10 厚 C10 标号素混凝土垫层。 根据规范（ 《大体积混凝土施工规范》 GB50496-2009）要求，混凝土结构物 实体最小几何尺寸不小于 1m为大体积混凝土，混凝土浇筑时，需按照大积混凝 土施工规范进行组织施工。