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Volume 38 Issue 4
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YANG Li-Gong, CAI Zheng-yin, XU Zhi-feng. Numerical analysis of bucket resistance of new bucket foundation breakwater[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(4): 747-754. DOI: 10.11779/CJGE201604021
Citation: YANG Li-Gong, CAI Zheng-yin, XU Zhi-feng. Numerical analysis of bucket resistance of new bucket foundation breakwater[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(4): 747-754. DOI: 10.11779/CJGE201604021
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Numerical analysis of bucket resistance of new bucket foundation breakwater

  • 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;
    2. Nanjing Hydraulic Research Institute, Nanjing 210029, China;
    3. Jiangsu Kexing Engineering Construction Superivsion Co., Nanjing 210021, China

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  • Revised Date: April 23, 2015
  • Published Date: April 24, 2016
    Graphical Abstract
    • Abstract
  • The resistance including the frictional resistance on the bucket wall and the partition wall and the end resistance at the bottom of the bucket is an important factor to maintain the stability of the bucket. The frictional resistance on the outside bucket wall is connected with the relative displacement and the contact status between the bucket and the soil. The frictional resistance on the inside bucket wall and the partition wall relates with the relative displacement between the bucket and the soil, while the end resistance at the bottom of the bucket is connected with the contact status between the bucket and the soil. Under wave loads, the upper outside bucket wall breaks away from the soil, and the lower bucket wall generate upward displacement against the soil at the sea side, while the bucket wall at the land side is opposite. At the same time, the inside bucket wall and the partition wall generates upward displacement at the sea side against the soil, and the situation is opposite at the land side, while the bottom breaks away from the soil at the sea side and it compresses the soil at the land side. At the head side of the waves where an upward displacement is generated around the rotating center of the bucket, the frictional resistance on the bucket wall and the partition wall changes from the positive frictional resistance under self-weight to the negative one, and the end resistance at the bottom of the bucket reduces until to zero. At the same time, at the reverse side of the waves where a downward displacement is generated around the rotating center of the bucket, the resistance of the bucket increases based on its self-weight.
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    • References (10)
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