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Volume 34 Issue suppl
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LI Zhi-wei, HOU Wei-sheng, YE Ai-li, CHEN Ke-shuai, TANG Yong. Displacement control effect of passive zone improvement at excavation section of deep foundation pits[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(suppl): 621-627.
Citation: LI Zhi-wei, HOU Wei-sheng, YE Ai-li, CHEN Ke-shuai, TANG Yong. Displacement control effect of passive zone improvement at excavation section of deep foundation pits[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(suppl): 621-627.
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Displacement control effect of passive zone improvement at excavation section of deep foundation pits

  • (1. Fujian Academy of Building Research, Fuzhou 350025, China; 2.Fujian Key Laboratory of Green Building Technology, Fuzhou 350025, China)

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  • Received Date: November 12, 2012
  • Published Date: November 12, 2012
    Graphical Abstract
    • Abstract
  • In the construction process of deep foundation pits, the passive zone improvement at the pit bottom is often used to control the deformation. But the study on the passive zone improvement at the excavation section of deep foundation pits is very rare. The displacement control effect of the passive zone improvement at excavation section is studied. The results show that the optimal improvement height for the passive zone improvement exists. When the improvement height is lower than the optimal height, the horizontal displacement of the retaining wall and the settlement of the ground surface settlement reduce with the increase of the improvement height. When the improvement height is higher than the optimal height, the maximum of the above-mentioned two remains almost unchanged. But the increase of the improvement height can reduce the horizontal displacement of the top of the retaining wall, which has great significance for the protection of the surrounding environment.
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    • References (14)
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