唐山岩溶地区某超高层建筑桩筏设计与协同作用分析
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（北京市建筑设计研究院有限公司, 北京 100045）［摘要］工程为唐山市目前在建最高建筑，鉴于岩溶地质问题的不确定性和复杂性，地基基础设计成为工程的设计重点和难点。工程采用厚板桩筏基础形式，在地基基础设计与施工过程中做了大量分析、研究、试验和检测等工作。着重介绍后注浆钻孔灌注桩设计、桩筏基础与地基土相互作用分析、沉降变形计算分析和试验桩数据分析等，为今后类似地区超高层和岩溶地质条件的地基与基础设计积累了相关经验。［关键词］岩溶地区; 基础设计; 协同作用; 后注浆灌注桩中图分类号：TU473.1 文献标识码：A 文章编号：1002-848X(2014)20-0115-04Piled raft foundation design and interaction analysis of a super high-rise building in karst areas of TangshanKan Dunli, Fang Yunfei(Beijing Institute of Architectural Design, Beijing 100045, China)Abstract: The project is currently the tallest building under construction in Tangshan City. Due to uncertainty and complexity of the karst geology, the foundation design is the emphasis and difficulty of this project. Thick-plate piled raft foundation was applied in this project. In the design and construction of the foundation, a lot of analyses, study, experiments and tests were carried out. The design of the post grouting bored pile, interaction analysis of the piled raft foundation and soil, settlement calculation of the foundation and data analysis of the test pile were focused on. The study can provide reference for designs of the super high-rise building and foundation in similar area with karst geological conditions.Keywords: karst area; foundation design; interaction; post grouting bored pile作者简介：阚敦莉，学士，高级工程师，一级注册结构工程师，Email：kdl163@163.com。参考文献［1］JGJ 94—2008 建筑桩基技术规范［S］. 北京:中国建筑工业出版社，2008.［2］GB 50007—2011 建筑地基基础设计规范［S］. 北京: 中国建筑工业出版社,2012.［3］方云飞, 孙宏伟, 阚敦莉. 唐山岩溶地区高层建筑地基基础设计与施工中的问题［J］. 岩土工程学报, 2013，35(S2):1117-1121.［4］刘金砺.高层建筑地基基础概念设计的思考［J］.土木工程学报, 2006,39(6):100-105.［5］王媛,孙宏伟. 北京Z15地块超高层建筑桩筏基础的数值分析［J］. 建筑结构,2013,43(17):134-139.
