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Effect of Base Grouting on the Bearing Capacity of Bored Piles

Author

Listed:
  • Weiguo Wang

    (School of Civil Engineering, Southeast University, Nanjing 211189, China
    China Railway Construction Suzhou Design & Research Institute, Suzhou 215006, China)

  • Guoliang Dai

    (School of Civil Engineering, Southeast University, Nanjing 211189, China)

  • Jiabei Wei

    (China Railway Construction Suzhou Design & Research Institute, Suzhou 215006, China)

  • Arezoo Rahimi

    (Department of Civil and Environmental Engineering, University of Auckland, Auckland 1010, New Zealand)

  • Qian Zhai

    (School of Civil Engineering, Southeast University, Nanjing 211189, China
    Bridge Engineering Research Center of Southeast University, Southeast University, Nanjing 210096, China)

Abstract

Post-grouting is a widely used technology for ground improvement and the strengthening of bored pile foundations. In situ experiments have shown that post-grouting is effective in improving the bearing capacity of bored piles. However, due to the cost and complexity of the in situ tests, the total number of test piles is limited. Therefore, it is not surprising that uncertainty is always associated with the collected data. This may significantly affect the conclusion of analyses, and most current studies have neglected this effect. In this paper, statistical analyses were carried out in order to investigate the effect of uncertainties in the data and the impact of post-grouting on the bearing behaviors of bored piles. The results show that post-grouting can significantly improve the bearing behavior of piles. This study is expected to provide technical guidance for post-grouting in foundation engineering.

Suggested Citation

  • Weiguo Wang & Guoliang Dai & Jiabei Wei & Arezoo Rahimi & Qian Zhai, 2023. "Effect of Base Grouting on the Bearing Capacity of Bored Piles," Sustainability, MDPI, vol. 15(5), pages 1-14, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:5:p:4148-:d:1079682
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