（南京金宸建筑设计有限公司， 南京 210019）

［摘要］目前，国内部分百米高层剪力墙结构住宅项目基础设计采用了刚性桩复合地基。刚性桩复合地基多为CFG桩复合地基和预应力混凝土管桩复合地基两种类型，两者虽均属于刚性桩复合地基的范畴，但因增强体的不同仍有较大区别。依托两实际工程项目的基础方案选择及竣工后的沉降观测数据，阐述了不同增强体刚性桩复合地基基础选型因素分析、地基承载力计算、基础沉降计算和观测、单桩及复合地基载荷试验等方面的内容。同时，结合国内其他类似成功案例及相关研究成果，对该类型基础形式进行经验总结，给出了刚性桩复合地基应用于百米高层剪力墙结构的设计要点和注意事项。

［关键词］高层住宅；刚性桩复合地基；CFG桩；预应力混凝土管桩

中图分类号：TU473-1文献标识码：A文章编号：1002-848X(2021)08-0090-07

Pile type selection and case analysis of rigid pile composite foundation of 100m high-rise residential building

Lv Hengzhu, HOU Shanmin, XU Congrong

(Nanjing Kingdom Architecture Design Co., Ltd., Nanjing 210019, China)

Abstract:At present, rigid pile composite foundations are used in the foundation design of some domestic 100m high-rise shear wall structure residential projects. Rigid pile composite foundations are mostly CFG pile composite foundations and prestressed concrete pipe pile composite foundations. Although both of them belong to the category of rigid pile composite foundations, there are still big differences due to different reinforcements. Based on the selection of the foundation scheme and the post-completion settlement observation data of two actual engineering projects, some contents were illustrated including the analysis of the selection factors of the rigid pile composite foundation with different reinforcements, the calculation of the foundation bearing capacity, the calculation and observation of foundation settlement, and the load test of single pile and composite foundation. At the same time, combined with other similar domestic successful cases and related research results, the experience of this type of foundation form was summarized, and the design points and precautions of the rigid pile composite foundation applied to the 100m high-rise shear wall structure were given.

Keywords:high-rise residential building;rigid pile composite foundation;CFG pile;precast concrete pipe pile

作者简介：吕恒柱，硕士，研究员级高级工程师，一级注册结构工程师，注册土木工程师（岩土），Email：Lhz309@126.com。