深基坑施工中特殊位置的劲性混凝土柱做法分析与应用  

Analysis and Application of Rigid Concrete Column in Special Position in Deep Foundation Pit Construction

作　　者：李迪安[1] 魏燕龙 缪献鹏 李洪帅 马晨威 LI Di'an;WEI Yanlong;MIAO Xianpeng;LI Hongshuai;MA Chenwei(The First Company of China Eighth Engineering Bureau Co.,Ltd.,Jinan,Shandong 250100,China)

机构地区：[1]中建八局第一建设有限公司,山东济南250100

出　　处：《建筑施工》2022年第2期232-235,共4页Building Construction

摘　　要：随着社会发展,高层建筑和深基坑工程日趋增多,深基坑常用围护结构为地下连续墙(或者钻孔灌注桩)和钢筋混凝土梁支撑。为增加地下室竖向构件承载力及刚度,通常将柱体设计为劲性混凝土柱,而劲性混凝土柱不可避免地会与支撑梁位置冲突,导致钢骨架安装难度大,且存在柱体位置与桩基位置重合的情况,特别是单桩基础结构柱。基于此,结合绍兴北站T0D综合体项目,通过分析特殊位置的劲性混凝土柱施工方法,寻求最优做法,达到节省材料、提高施工效率的效果。With the development of society,high-rise buildings and deep foundation pit projects are increasing,the commonly used support structures of deep foundation pit are underground diaphragm wall(or bored pile)and reinforced concrete beams To increase the bearing capacity and stiffness of the vertical components of the basement,the column is usually designed as a rigid concrete column,and the rigid concrete column will inevitably conflict with the position of the support beam,resulting in great difficulty in the installation of the steel skeleton,and the position of the column coincides with the position of the pile foundation,especially the single pile foundation structure column.Based on this,combined with the TOD complex project of Shaoxing North Railway Station,by analyzing the construction method of rigid concrete columns in special positions,the best practices are sought to achieve the effect of saving materials and improving construction efficiency.

关 键 词：深基坑 劲性混凝土柱 支撑梁 预留洞 

分 类 号：TU753[建筑科学—建筑技术科学]