深基坑环形支护体系中的悬挑人行马道设计及应用

Design and Application of Cantilevered Personnel Walkway in Deep Foundation Pit Ring Support System

根据天津周大福金融中心特大型深基坑环形支护体系及土方开挖的特点,设计了上下基坑的悬挑人行马道,同时通过有限元模型分析其承载能力,确认其具有足够的安全保证度。经实践应用,有效地解决了深基坑施工的人员通行问题。

According to the characteristics of super large deep foundation pit ring support system and earthwork excavation of Tianjin Chow Tai Fook financial center,a cantilevered personnel walkway between the upper and lower foundation pit is designed,and its carrying capacity is also analyzed by a finite element model to confirm that it has adequate safety assurance.Through practical application,the personnel access problem in deep foundation pit construction has been effectively solved.