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Volume 36 Issue 11
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Abstract
References
FU Wen-guang, LIU Jian-guo, YANG Zhi-yin. Formulae for calculating stability of anti-floating anchor and anchor anti-floating system[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(11): 1971-1982. DOI: 10.11779/CJGE201411002
Citation: FU Wen-guang, LIU Jian-guo, YANG Zhi-yin. Formulae for calculating stability of anti-floating anchor and anchor anti-floating system[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(11): 1971-1982. DOI: 10.11779/CJGE201411002
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Formulae for calculating stability of anti-floating anchor and anchor anti-floating system

  • 1. China JingYe Engineering Co., Ltd., Beijing, 100088;
    2. Shenzhen YeJianYuan Building Technology Co., Ltd., Shenzhen 518054, China

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  • Received Date: March 23, 2014
  • Published Date: November 19, 2014
    Graphical Abstract
    • Abstract
  • The comprehensive safety factor methods and partial safety factor expressions should be adopted for the formulae to calculate the stability of anti-floating anchor and anchor anti-floating system. The model for the stability of anchor groups can be simplified as that of single anchor, the fracture surface is assumed that the upper part is cuboid and the lower part is cone, and the depth of conical tip is the sum of the fixed anchor length for calculation and free anchor length. The whole anti-floating bearing capacity of the anchor group is the sum of that of the single anchor. The anti-floating bearing capacity of the single anchor is the sum of the weight of soils inside the fracture body and the frictional resistance supplied by cohesive force on the assumed fracture surface divided by the partial safety factor, which is 1.5 and 3.0, respectively. In the formula for calculating the stability of anchor anti-floating system, the design resistance value is the sum of the design of values anti-floating bearing capacity of uplift piles and anti-floating anchor and the standard weights of buildings and permanent loads on them divided by safety factor of 1.05, and the design value of buoyancy is the hydrostatic pressure at the foundation bottom of buildings.
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