广州白云国际机场T2航站楼隧道基坑支护设计技术
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摘要
广州白云国际机场综合交通枢纽项目位于T1航站楼以北,紧邻在建T2航站楼,包括交通中心、停车楼、能源中心、地铁车站、地铁区间、城轨车站、T2航站楼隧道、的士隧道、巴士隧道等多个业态,且各业态间有较多共建、共用关系,结构布局相当紧凑。本文提出了一种解决近距离建筑相互施工影响的基坑支护设计优化技术,将常规的"先深后浅"施工部署调整为"先浅后深",解决了T2航站楼隧道施工受地铁、城轨施工进度影响的难题,尤其是实现了一桩两用和一板两用。
The integrated transportation hub project of Guangzhou Baiyun International Airport is located in the north of terminal T1,adjacent to the terminal T2 under construction,including traffic center,parking building,energy center,subway station,subway,city rail station,tunnel of terminal T2,taxi tunnel,bus tunnel and other formats and each state has more to build and share,the layout of the structure is quite compact.A foundation excavation design optimization technology of solving the construction influence of close distance building was introduced,a conventional construction of 'deep to shallow' was adjusted for the deployment of 'shallow to deep',which solves the problem that the construction of terminal No.2 tunnel is affected by the progress of metro and urban rail construction,especially a dual-purpose pile and a plate dual purpose are achieved.
The integrated transportation hub project of Guangzhou Baiyun International Airport is located in the north of terminal T1,adjacent to the terminal T2 under construction,including traffic center,parking building,energy center,subway station,subway,city rail station,tunnel of terminal T2,taxi tunnel,bus tunnel and other formats and each state has more to build and share,the layout of the structure is quite compact.A foundation excavation design optimization technology of solving the construction influence of close distance building was introduced,a conventional construction of 'deep to shallow' was adjusted for the deployment of 'shallow to deep',which solves the problem that the construction of terminal No.2 tunnel is affected by the progress of metro and urban rail construction,especially a dual-purpose pile and a plate dual purpose are achieved.
引文
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[2]范铁强,栾晶晶,王传成,等.一种复杂基础型式地基和基坑设计方法探讨[J].岩土工程学报,2012(S1):267-271.
[3]杨跃.一桩两用在盖挖逆作地下工程中的应用[J].岩土工程学报,2011(S2):155-158.
[4]陈其志,徐良英,徐长节,等.“两墙合一”技术在深基坑围护优化设计中的应用[J].地下空间与工程学报,2015(S1):189-194.
[5]田强,苟波,郑立宁.地下建筑“桩墙合一”技术综合分析[J].四川建材,2015(6):112-113.