河南发展大厦桩基础优化设计
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（大连市建筑设计研究院有限公司， 大连 116021）[摘要]河南发展大厦建筑平面、立面复杂，东西楼结构体系截然不同且质量差别较大，基础设计复杂，西楼不对称的连体部分的结构设计难度较大。本文着重介绍了基础设计的混凝土灌注桩后压浆技术及桩筏基础的变刚度调平技术应用，创造了明显的经济效益和社会效益。[关键词]钻孔灌注桩后压浆;变刚度调平中图分类号：TU473 文献标识码：A 文章编号：1002-48X(2013)S1-0868-04Pile foundation optimize design of Henan Development PlazaZhang Ying,Wen Yuan,Ma Li(Dalian Architectural Design & Research Institute Co., Ltd, Dalian 116021, China)Abstract: Plane and vertical of Henan Development Plaza are complex, its east tower and west tower’s structural system are completely different and their quality vary greatly. Complicated design of the foundation, west tower asymmetric part of the connection led to the difficult structural design. This paper focuses on the application of post grouting for cast-in-situ pile and stiffness to reduce differerntial settlement of piled raft foundation technology ,that creat a significant economic and social benefits.Keywords: post grouting for cast-in-situ pile; stiffness to reduce differerntial settlement
