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TIAN Xue-fei, LU Hai-jun, YAN Jing-xia, CHU Cheng-fu, LU Li-hao, DONG Man-sheng. es Comparative study on methods for bearing capacity of foundation with post-grouting drilling piles[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 372-377.
Citation: TIAN Xue-fei, LU Hai-jun, YAN Jing-xia, CHU Cheng-fu, LU Li-hao, DONG Man-sheng. es Comparative study on methods for bearing capacity of foundation with post-grouting drilling piles[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 372-377.

es Comparative study on methods for bearing capacity of foundation with post-grouting drilling piles

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  • Received Date: February 28, 2013
  • Published Date: July 18, 2013
  • Based on the pile foundation of a bridge in northern area of Anhui province, five methods are used to calculate the ultimate bearing capacity of pile foundation after post grouting, including the technical codes for building pile foundations, the respective enhancement coefficients of the friction of pile side and the resistance of pile tip, the enhancement coefficient of the total ultimate bearing capacity, the codes for design of grouting base and foundation of highway bridges and culverts, and the method for bearing capacity which only considers pile tip improvement. The test results are compared with the in-situ values and show that the method of respective enhancement coefficients of the friction of pile side and the resistance of pile tip is adopted preferentially, and the second one is the technical codes for building pile foundations. It is not good to use the method of the codes for design of grouting base and foundation of highway bridges and culverts and the one only considering pile tip improvement.
  • 郭 琦. 应用后压浆技术的钻孔灌注桩承载力计算方法[J].水运工程, 2010(3): 63-67.(GUO Qi. Calculation method of bearing capacity for cast-in-situ pile with post-grouting technique[J]. Port & Waterway Engineering, 2010(3): 63-67. (in Chinese))
    龚维明,戴国亮,程 晔. 桩端后压浆桩轴向承载力[J]. (桥梁建设), 2009(5): 13-16.(GONG Wei-ming,DAI Guo-liang,CHENG Ye. Axial bearing capacity of base post-grouting piles[J]. Bridge Construction, 2009(5): 13-16.(in Chinese))
    龚维明,戴国亮,张浩文. 桩端后压浆技术在特大桥梁桩基中的试验与研究[J]. 东南大学学报 (自然科学版), 2007(6): 1066-1070.(GONG Wei-ming,DAI Guo-liang,ZHANG Hao-wen. Test and research on pile-end post-grouting piles technology for super-large bridge pile foundations[J]. Journal of Southeast University (Natural Science Edition), 2007(6): 1066-1070. (in Chinese))
    JGJ 94—2008建筑桩基技术规范[S]. 94—2008建筑桩基技术规范[S]. 2008.(JGJ 94—2008 Technical code for building pile foundations[S]. 94—2008 Technical code for building pile foundations[S]. 2008. (in Chinese))
    张忠苗. 灌注桩后注浆技术及工程应用[M]. 北京: 中国建筑工业出版社, 2009: 142-152. (ZHANG Zhong-miao. Post-grouting technique and engineering application of bored pile[M]. Beijing: China Architecture & Building Press, 2009: 142-152(in Chinese))
    JTG D63—2007公路桥涵地基与基础设计规范[S]. D63—2007公路桥涵地基与基础设计规范[S]. 2007.(JTG D63—2007 Code for design of ground basefoundation of highway bridgesculverts[S]. D63—2007 Code for design of ground base and foundation of highway bridges and culverts[S]. 2007. (in Chinese))
    钱让清,马秀全. 后压浆技术在桥梁工程中的应用与分析[J]. 合肥工业大学学报 (自然科学版), 2006(5): 573-575.(QIAN Rang-qing,MA Xiu-quan. Application of the post-grouting technique to bridge engineering[J]. Journal of Hefei University of Technology (Natural Science), 2006(5): 573-575. (in Chinese))
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