极热高温地区CBK项目大体积筏板基础分块施工技术  

Partitioned Construction of Mass Raft Foundation in Super-high Temperature Area

作　　者：姚善发 贾垒 曲新钢 

机构地区：[1]中建三局第二建筑工程有限公司,湖北武汉430074 [2]中建股份公司海外部,北京100026

出　　处：《施工技术（下半月）》2012年第11期13-18,共6页Construction Technology

摘　　要：在某些极为炎热的高温国家,由于条件限制筏板被迫分成若干施工段浇筑。通过施工缝节点处理有效地解决了分段浇筑问题,并解决了膨胀、伸缩等问题,而取代后浇带。重点介绍了筏板施工段划分及施工缝节点处理方法,筏板混凝土浇筑及质量保证措施,并讲述了其他施工作业情况及基坑监测情况。实践表明,施工效果良好。In middle-east area with extremely high temperature, raft foundations are generally divided into multiple sections for individual construction and concrete pouring. With eareful handling of raft joints, the raft section pouring can fully overcome the concrete expansion and shrinkage problem. So the late poured band that is regularly stipulated in China code and specification can be removed. The raft dividing method, joint construction detail, concrete pouring method, and quality assurance measures are introduced in detail. Other related construction activities and survey＆ monitor of foundation excavation are also introduced. The result shows that this raft construction technology is effective and successful.

关 键 词：混凝土 高温地区 施工段划分 施工缝 筏板 浇筑 

分 类 号：TU755[建筑科学—建筑技术科学]