横观各向同性在抗滑桩加固边坡中的应用
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国家自然科学基金资助项目(51478166)


Application of the transverse isotropy in the piled slope
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    摘要:

    讨论了土体强度横观各向同性和非均质性,分析了考虑强度横观各向同性与非均质性边坡的计算方法。采用极限平衡法推导出考虑强度横观各向同性与非均质性边坡稳定计算公式,对安全系数计算方法中土体抗滑力矩与抗滑桩抗滑力矩计算公式进行了修正,得到了同时考虑土体强度横观各向同性与非均质性抗滑桩加固边坡的计算方法。通过实例验证,得到当假定水平粘聚力不变,在考虑土体强度横观各向同性时计算安全系数相对误差小于不考虑土体强度横观各向同性边坡。在实际抗滑桩加固边坡工程中考虑土体强度横观各向同性是必要的。

    Abstract:

    This paper discussed the transversely isotropy and heterogeneity of the slope and analyzed the calculation method considering transverse isotropy and heterogeneity. The anti-skid moment calculation formula of the soil and the anti-slide pile was developed by the limit equilibrium method. Calculation method of slope reinforced by anti-slide piles considering soil strength transversely isotropic and heterogeneous was developed by modifying the safety factor calculation for the anti-skid moment calculation formula of the soil and the anti-slide pile. The situ case showed that when the horizontal cohesion was assumed to be a constant,the relative error of the safety factor of the transversely isotropic slope was less than that without considering the transversely isotropic nature of the soil strength,which meant that it is necessary to consider the transversely isotropic nature of the soil strength in the anti-slide pile reinforced slope engineering.

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胡聪,张永攀.横观各向同性在抗滑桩加固边坡中的应用[J].河北工程大学自然版,2018,35(3):34-38

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  • 收稿日期:2018-05-05
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  • 在线发布日期: 2018-10-13
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