摘要
中国已成为300m以上高的超高层建筑发展的中心之一,截止到2021年,全球高度前15栋已建和在建超高层建筑中9栋位于中国,建筑高度已突破600m。在超高层建筑高度不断突破的同时,地基基础面临高基底压力、复杂的风和地震作用、严格的沉降控制等问题。结合国内超高层建筑的建造需求与工程实例,总结了超高层建筑桩基础设计原则、主要深基础形式。阐述了钢管桩、嵌岩桩、大直径超长灌注桩等几种主要基础形式的特点与设计要点,并对应地介绍了上海环球金融中心、南京绿地紫峰大厦、天津117大厦等典型超高层建筑基础工程实践,分别涉及含砾中粗砂、中风化安山岩、粉砂等不同性质的持力土层,分别采用了不同的桩基础形式和针对性的设计与施工措施。
China has become one of the centers for the development of super high-rise buildings over 300 m. Among the top 15 super high-rise buildings built or under construction in the world by 2021, 9 of these are located in China, and the building height has exceeded 600 m. While the height of super high-rise building is constantly breaking through, the foundation is faced with high basement pressure, complex wind and earthquake action, strict settlement control and other problems. The design principles of pile foundation and main deep foundation types of super high-rise buildings were summarized according to the construction requirements and engineering examples of super high-rise buildings in China. The characteristics and design key points of several main foundation forms such as steel pipe pile, rock-socketed pile and large diameter and super long cast-in-place pile were expounded. The foundation engineering practices of typical super high-rise buildings such as Shanghai World Financial Center, Nanjing Greenland Zifeng Building and Tianjin 117 Building were introduced correspondingly.These projects involve different kinds of soil layers with different properties, such as medium coarse gravel, medium weathered andesite, silty sand, etc. Different forms of pile foundation and corresponding design and construction measures were adopted respectively.
作者
王卫东
吴江斌
WANG Weidong;WU Jiangbin(East China Construction Group Co.,Ltd.,Shanghai 200011,China;East China Architecture Design&Research Institute Co.,Ltd.,Shanghai 200011,China)
出处
《建筑结构》
CSCD
北大核心
2021年第17期59-66,共8页
Building Structure
关键词
超高层建筑
深基础
桩基础
钢管桩
嵌岩桩
大直径超长灌注桩
super high-rise building
deep foundation
pile foundation
steel pipe pile
rock-socketed pile
large diameter and super long cast-in-place pile
