超大体积水下混凝土施工  

Construction of Extra Large Volume Underwater Concrete

作　　者：陈子阳 

机构地区：[1]中交二航局第四工程有限公司,芜湖241000

出　　处：《价值工程》2017年第21期133-134,共2页Value Engineering

摘　　要：本文针对超大体积水下混凝土施工过程中的要点进行论述,分别从封底前准备工作、平台搭设、布料点设置及浇筑顺序等方面进行阐明与分析。在封底前准备工作中,要注意基底隔离这道工序,对封底质量起关键性作用;布料点的设置应遵循导管的累加作用区域实现全覆盖,相邻作用区域有所重叠的原则;浇筑顺序采取先四角,再四周,随后向中间逐步推进的水下混凝土封底工艺。In this paper, the main points of the construction process of extra large concrete underwater are discussed, and the preparation work, platform erection, laying point setting and pouring order are expounded and analyzed respectively. In the preparation work before the back cover, pay attention to the base isolation of this process, the back cover the quality of the key role; cloth point should be set to follow the cumulative role of the catheter to achieve full coverage, adjacent areas of the overlap of the principle; Take the first four corners, and then four weeks, then to the middle of the progressive advance of the underwater concrete back cover process.

关 键 词：超大体积水下混凝土 基底隔离 布料原则 浇筑次序 

分 类 号：U445.57[建筑科学—桥梁与隧道工程]