锚杆静压桩托换技术在某别墅新增地下室中的应用
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（上海同瑞土木工程技术有限公司， 上海 200092）［摘要］结合某工程实例，研讨采用锚杆静压桩托换技术进行基础托换的设计思路，详细介绍了基础托换的构造做法以及施工关键技术，并对锚筋锚固和原基础加大部分混凝土新老界面的抗剪强度进行了验算，总结了房屋结构基础托换在加固设计和施工中应注意的若干关键技术问题。可供同类工程进行结构加固设计与施工时参考。［关键词］锚杆静压桩; 基础; 托换技术; 加固中图分类号：TU746.3, TU318.2 文献标识码：A 文章编号：1002-848X(2015)09-0059-04Application of underpinning technique of anchor jacked pile in a new basement of a cottage projectWang Peng(Shanghai Tongrui Civil Engineering Technology Co., Ltd., Shanghai 200092, China)Abstract:Based on a practical engineering, design method for underpinning technique of anchor jacked pile was discussed. The construction details and key construction technologies of foundation underpinning were introduced in detail．Anchorage of the rebar was checked as well as the shear capacity of concrete interface between enlarged parts for existed foundation and existed foundation. Moreover, some key technical issues about structure foundation underpinning in the design and construction were summarized, which provides reference for the design and construction of the similar projects．Keywords:anchor jacked pile; foundation; underpinning technique; strengthening作者简介：王鹏，硕士，一级注册建造师，Email：nmgwp2000@126.com。参考文献［1］GB 50010—2010混凝土结构设计规范［S］. 北京: 中国建筑工业出版社, 2011.［2］GB 50367—2006混凝土结构加固设计规范［S］. 北京: 中国建筑工业出版社, 2006.［3］王二花. 植筋法新老混凝土粘结面剪切性能试验研究［D］. 郑州：郑州大学,2004.
