超深基坑内支撑拆换撑过程中水平荷载在沉降后浇带中传递的研究与应用  

Research and Application of Horizontal Load Transfer in Settlement Post-Pouring Zone in the Process of Removing and Replacing Braces in Ultra-Deep Foundation Pit

作　　者：张相平[1] 乔会丹 邢琦 曹江 代世杰 王云鑫 ZHANG Xiang-ping;QIAO Hui-dan;XING Qi;CAO Jiang;DAI Shi-jie;WANG Yun-xin(China Construction Second Engineering Co.Ltd.South China Company,Shenzhen 518048.China;AECOM,Shenzhen 518052,China;Shenzhen Chuangmeingida Real Estate Development Co.Ltd,Shenzhen 518000,China)

机构地区：[1]中国建筑第二工程局有限公司华南分公司,广东深圳518048 [2]艾奕康设计与咨询(深圳)有限公司,广东深圳518052 [3]深圳市创美景达房地产开发有限公司,广东深圳518000

出　　处：《工程建设与设计》2023年第2期34-36,共3页Construction & Design for Engineering

摘　　要：基于星河雅宝高科创新园四A地块项目,针对北侧三排桩在拆换撑过程中的水平荷载无法连续传递问题,通过分析研究,设计了一种可在塔楼周围一圈沉降后浇带中进行传力的型钢传力带,确保了在沉降后浇带未封闭时可以提前插入内支撑拆除施工,从而实现了内支撑提前拆换撑,方便现场平面布置安排。Based on the a block project of Xinghe Yabao High-Tech Innovation Park, aiming at the problem that the horizontal load cannot be transferred continuously during the dismantling and bolting of the three rows of piles on the north side, this paper designs a kind of forcing-shaped steel transmission belt which can be used in a circle of settled post-pouring belt around the tower through analysis and research. It ensures that the inner support can be inserted in advance for demolition construction when the pouring belt is not closed after settlement, thus realizing the inner support can be dismantled and replaced in advance, which is convenient for the site layout.

关 键 词：超深基坑 内支撑拆换撑 沉降后浇带 水平荷载 

分 类 号：TU753[建筑科学—建筑技术科学]