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（1同濟大學，上海 200092；2 上海城興市政工程設計有限公司，上海 200235）

 [摘要]  本文介紹了鉆孔灌注樁樁側(cè)與樁底復合后注漿機理及注漿裝置設計，并制定了操作流程與注意事項，最后通過對試驗樁基數(shù)據(jù)的分析，給出了適合本工程的承載力提高系數(shù)，為類似工程的設計施工提供一定的參考。

[關鍵詞]  后注漿；灌注樁；承載力

中圖分類號：              文獻標識碼：         文章編號：14S1199

作者簡介：郭旸，學士，工程師，Email：hmilye@gmail.com。

Application research of pile post-grunting technology for city elevated road

Guo Yang^1,2

(1 Tongji University, Shanghai 200092, China; 2 Shanghai Chengxing Urban Engineeringdesign Co.,Ltd., Shanghai 200235, China)

Abstract: This article describes the mechanism of post-grouting combination as well as the design of grouting device for pile’s side and bottom. Besides, the article also introduces the handling process and operation guidelines for the technology. Finally, according to the testing data analysis of the bearing capacity experiment, we could provide the addtional coefficient of bearing capacity that is suitable for this project. Meanwhile, it is also a significant milestone of offering the valuable reference to the similar projects in the future.

Keywords: post-grouting; slurry drilled pile; bearing capacity

參 考 文 獻

[1]JTG D63—2007 公路橋涵地基與基礎設計規(guī)范[S].北京：人民交通出版社, 2007.

[2]JTG/T F50—2011 公路橋涵施工技術規(guī)范[S].北京：人民交通出版社, 2011.

[3]JGJ 94—2008 建筑樁基技術規(guī)范[S].北京：中國建筑工業(yè)出版社,2008.

[4]DGJ08-11—2010 地基基礎設計規(guī)范[S].上海, 2008.