深基坑支护桩作为大吨位塔吊基础施工技术

Foundation Construction Technology of Deep Foundation Pit Retaining Pile as the Large-tonnage Tower Crane

介绍了利用深基坑支护桩作为主塔楼大吨位塔吊基础施工技术,通过设置配重块、支护桩侧面加强、坑内设置加强支撑板及基坑动态监测等措施,确保了基坑安全;同时避免了从深基坑内设置三根钢筋混凝土柱所带来的费用大、施工进度慢、影响地下室主体结构施工等一系列问题。

This paper introduced the use of deep excavation retaining pile as a construction technology for the large-tonnage tower crane foundation,which ensured the safety of foundation pit by setting up balancing weights,lateral reinforcement of retaining pile,fixing the reinforced support plates in the pit,dynamic pit monitoring and other measures;meanwhile,it avoided a range of issues which would happen as a result of setting up three reinforced concrete columns in the deep foundation pit such as high cost,slow progress of construction,impacted on construction of the main structure in basement.