临近超高层建筑超大深基坑桩锚+内支撑与结构一体化施工技术

Construction Technology of Super Large and Deep Foundation Excavation Pile Anchor + Internal Bracing and Structure Integration of Adjacent Super High-rise Building

以昆明螺蛳湾中心项目超大深基坑临近超高层建筑物且仅存狭窄空间为研究背景,介绍了采用深基坑桩锚+内支撑结构支护体系进行基坑东南侧支护施工,并将基坑内支撑设计与结构设计相结合,基坑支护水平支撑设置于水平结构标高位置处,竖向支撑格构柱平面定位于结构框架柱处,达到桩锚+内支撑与结构一体化施工的效果,从而得到了一些可用于指导施工的切实有效的结论。

This paper takes Kunming Luoshiwan Center project of super large and deep foundation excavation adjacent high-rise building and only a narrow space as the research background,introduces the system structure of deep foundation excavation pile anchor ＋ internal support to construct the southeast side supporting bracing,and the foundation excavation bracing design and structure design are combined,foundation excavation support lateral bracing is arranged on the horizontal level elevation position,vertical bracing lattice column plane are positioned at the structure frame column,in order to achieve the effect of pile anchor ＋ internal bracing and structure integration construction,thus,some practical conclusions can be used to guide the construction.