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Volume 41 Issue S1
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CHEN Yan-ping. Uplift stability of narrow foundation pits based on Prandtl formula[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S1): 61-64. DOI: 10.11779/CJGE2019S1016
Citation: CHEN Yan-ping. Uplift stability of narrow foundation pits based on Prandtl formula[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S1): 61-64. DOI: 10.11779/CJGE2019S1016
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Uplift stability of narrow foundation pits based on Prandtl formula

  • Architectural Design and Research Institute of Guangdong Province, Guangzhou 510635, China

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  • Received Date: April 28, 2019
  • Published Date: July 14, 2019
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    • Abstract
  • Drilled piles and internal supporting structures are widely used at present especially in the foundation pit supporting works of municipal industry. The traditional uplift stability analysis method based on the the Prandtl formula for calculating the ultimate bearing capacity which, however, is not suitable for narrow foundation pits. Starting from the definition of the narrow foundation pit and according to the basic principle of the Prandtl formula for calculating the ultimate bearing capacity, the failure modes and relevant parameters suitable for the narrow foundation pit are reassumed, and the corresponding formula for calculating the ultimate bearing capacity of foundation is derived. Example shows that the proposed formula can better reflect the actual conditions of narrow foundation pits, and the safety factor is appropriately raised.
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    • References (7)
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