天津空港深基坑现场监测数据分析  

Field monitoring data analysis of deep foundation pit in Tianjin Airport

作　　者：张桂龙 谭永华 ZHANG Gui-long;TAN Yong-hua(Tianjin Survey and Design Institute Group Co.,Ltd.,Tianjin 300110,China)

机构地区：[1]天津市勘察设计院集团有限公司,天津300110

出　　处：《地下水》2023年第1期75-77,共3页Ground water

摘　　要：基坑开挖是否满足工程的要求,各项指标是否控制在有效的范围内。对此本文结合一实际基坑工程,通过对开挖支护后的基坑进行现场监测,对基坑开挖的成功与否进行研究,研究结果表明:(1)基坑围护桩的水平位移和竖向位移均控制在合理的范围内,且位移速率也在工程允许的范围内,不会对工程造成威胁;(2)基坑的隆起累计不超过2 mm,满足工程的要求;(3)基坑周围的沉降控制在合理的范围内,满足基坑稳定性的要求;以上研究结果说明基坑开挖是合理的,此监测方法可供类似的基坑工程提供参考。Whether the foundation pit excavation meets the requirements of the project and whether all indicators are controlled within the effective range.In this paper,combined with an actual foundation pit project,through the on-site monitoring of the foundation pit after excavation and support,the success of foundation pit excavation is studied.The research results show that:(1)the horizontal displacement and vertical displacement of foundation pit retaining pile are controlled within a reasonable range,and the displacement rate is also within the allowable range of the project,which will not pose a threat to the project;(2)The cumulative uplift of foundation pit shall not exceed 2mm,meeting the requirements of the project;(3)The settlement around the foundation pit shall be controlled within a reasonable range to meet the requirements of foundation pit stability;The above research results show that the foundation pit excavation is reasonable,and this monitoring method can provide reference for similar foundation pit projects.

关 键 词：基坑开挖 水平和竖向位移 隆起量 现场监测 

分 类 号：P641.74[天文地球—地质矿产勘探] TU463[天文地球—地质学]