重力式挡土墙抗倾覆稳定系数计算公式存在的问题

    张永康

    张永康. 重力式挡土墙抗倾覆稳定系数计算公式存在的问题[J]. 岩土工程学报. DOI: 10.11779/CJGE20240951
    引用本文: 张永康. 重力式挡土墙抗倾覆稳定系数计算公式存在的问题[J]. 岩土工程学报. DOI: 10.11779/CJGE20240951
    Doubts on the formula for anti overturning stability of gravity retaining walls[J]. Chinese Journal of Geotechnical Engineering. DOI: 10.11779/CJGE20240951
    Citation: Doubts on the formula for anti overturning stability of gravity retaining walls[J]. Chinese Journal of Geotechnical Engineering. DOI: 10.11779/CJGE20240951

    重力式挡土墙抗倾覆稳定系数计算公式存在的问题  English Version

    Doubts on the formula for anti overturning stability of gravity retaining walls

    • 摘要: 现行各行业规范所载重力式挡土墙抗倾覆稳定计算方法还存在问题。为指明该问题,本文首先利用合力矩定理推导出合理的抗倾覆稳定计算公式,然后举例用推导的公式和规范所载公式分别计算,将计算结果列图表进行对比,结果表明:按现行规范方法计算俯斜式、直立式及小角度仰斜式挡土墙抗倾覆稳定性,当墙高较小时工程偏保守,会造成浪费,而墙高较大时工程又偏危险;计算大角度仰斜式挡土墙时工程偏危险。最后据此提出修正规范公式的建议。
      Abstract: The recommended calculation method for the anti overturning stability of gravity retaining walls in the current technical specifications of various engineering industries is problematic.In order to clarify this issue, this article first used the resultant moment theorem to derive the correct formula for anti overturning stability calculation. Then, the derived formula and the formula recommended by the specifications were used as examples for calculation, and the calculation results are presented in graphs and tables for comparison.The results showed that according to the methods of current technical specifications for calculating the anti overturning stability of forward inclined, vertical, and small angle backward inclined retaining walls, when the wall height was small, the project tended to be conservative, which could cause waste, and when the wall height was large, the project would fall into a dangerous situation; When calculating large angle backward inclined retaining walls, the project might be in a dangerous situation.Finally, based on this calculation conclusion, this article proposed suggestions for revising the formula of current technical specifications.
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    出版历程
    • 收稿日期:  2024-09-23
    • 网络出版日期:  2025-02-20

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