广州周大福金融中心复杂深大基坑多支护体系设计与施工

Research and Application of Multi-support Systems Construction for Complicated Deep and Large Foundation Excavation at Chow Tai Fook Finance Centre in Guangzhou

对广州周大福金融中心深大基坑多支护体系设计施工进行研究分析,采用人工挖孔桩、预应力锚索、土钉墙以及喷锚支护作为深基坑多支护体系结构的形式,并采取分区开挖、跳仓施工、模拟分析等施工方法,克服了基坑深、大、施工组织繁杂、管理精细化要求高等诸多难点,保证了现场基坑施工的进度、安全和质量。

Multi-support system construction for complicated deep and large foundation excavation at Chow Tai Fook Finance Centre in Guangzhou is researched and analyzed. The series construction components are used as the multi-support system structures for complicated deep and large foundation excavation,such as manual hole digging piles,prestressed anchor cables,soil nailing wall and spray anchors. The construction method of excavation in partition,alternate segment concrete construction,simulation analysis are applied. The construction difficulties of deep and large foundation excavation,complicated organization,fine management are solved. The foundation excavation construction program,safety and quality is guaranteed.