施工技术 2014年7月上 6 CONSTRUCTION TECHNOLOGY 第43卷第13期 D0I:10.7672/8gjs2014130006 天津高银117大厦工程直径188m圆环非对称受力 支撑体系监测分析与研究 侯玉杰,余地华,艾心荧,叶建,黄晓程 (中建三局集团有限公司工程总永包公司,湖北武汉430064) [摘要]以天津高银117大厦超大深基坑工程为例,分析探讨了非对称受力条件下,圆环支撑体系在超大、超深基 坑工程中的应用.通过基坑位移和支撑结构轴力的监测,分析了基坑在开挖过程中圆环支撑体系的变形和应力的 变化规律,并对基坑整体稳定性进行了评价.各项基坑监测项目的数据显示,在整个基坑开挖、支护和拆撑过程 中,支护体系和周边环境是安全稳定的. [关键词]地下工程;深基坑;支撑;监测;位移;稳定性 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2014)13-0006-05 Monitoring Analysis and Research of 188 Meters Diameter Ring Support System Under Asymmetric Force in Tianjin Goldin Finance 117 Project Hou Yujie Yu Dihua Ai Xinying Ye Jian Huang Xiaocheng General Construction Company of CCTEB Group Co.Lid.Wuhan Hubei 430064 China) Abstract:Based on the construction of the ultra-large and deep foundation excavation in Tianjin Goldin Finance 117 project the application of ring support system under asymmetric force in ultra-deep foundation excavation is analyzed and discussed.According to the monitoring of foundation excavation displacement and axial force of support structure the variation of foundation excavation deformation and axial force of support structure is analyzed.And evaluation is done to the whole stability of foundation excavation.Monitoring results show that the supports system and surrounding environment are safe and stable in the whole construction process. Key words:underground;deep foundation excavation;supports;monitoring;displacement;stability 0引言 型机械,缩短工期、节省造价.圆环支撑体系根据 随着城市地下空间的开发利用,城市建设中基 其结构及受力特点可分为对称和非对称两种形式. 坑...