城市更新建设中原建筑基础处理及分析
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（1 中国五洲工程设计集团有限公司深圳分公司，深圳 518048；2 深圳市建筑设计研究总院有限公司, 深圳 518031）［摘要］针对在已拆除建筑的场地上一个新建建筑的基础设计，对原建筑桩基的检测结果进行合理分析，得出单桩极限承载力，根据单桩极限承载力并结合地质资料进行复合地基承载力特征值分析。利用相关文献资料对复合地基的各项分析计算结果进行合理性判断，最终得出本工程采用刚性桩复合地基方案满足安全、经济、环保的要求。对基础方案选型、处理流程、计算分析等方面进行了阐述。［关键词］复合地基; 极限承载力; 沉降; 桩基中图分类号：TU473.1+2 文献标识码：A 文章编号：1002-848X(2015)09-0056-03Process and analysis of existing building foundation in urban constructionDing Hangpu1, Wang Mingying2, Hu Chunji1(1 Shenzhen Branch of China Wuzhou Engineering Group, Shenzhen 518048, China; 2 Shenzhen General Institute of Architectural Design Research Co., Ltd., Shenzhen 518031, China)Abstract: According to the foundation design of new constructed buildings on the site of dismantled buildings, test results of existing building piles were reasonably analyzed to obtain the ultimate bearing capacity of single pile and analysis on bearing capacity characteristic value of composite foundation was carried out according to the ultimate bearing capacity of single pile combined with the geological data. The rationality of the analyses and calculation results of composite foundation was judged based on relevant literatures, and the adopted rigid pile composite foundation scheme of the project fulfill the requirements of safety, economy and environmental protection. Scheme selection, processing method, calculation and analysis of the foundation were discussed.Keywords:composite foundation; ultimate bearing capacity; settlement; pile foundation作者简介：丁杭普，高级工程师，一级注册结构工程师，Email：arnoldman@163.com。参考文献［1］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.［2］顾晓鲁，钱鸿缙，刘惠珊，等.地基与基础［M］.3版. 北京：中国建筑工业出版社，2003.［3］闫明礼，张东刚.CFG桩复合地基技术及工程实践［M］.2版.北京：中国水利水电出版社，2006.［4］陶景晖，梁书亭，金如元，等.复杂地质条件下高层建筑刚性桩复合地基应用与研究［J］.建筑结构，2013，43(6):86-91.
