| 挡土墙稳定性安全系数与可靠度指标的关系 |
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| 引用本文： | 杜永峰,余钰,李慧. 挡土墙稳定性安全系数与可靠度指标的关系[J]. 兰州理工大学学报, 2008, 34(3) |
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| 作者姓名： | 杜永峰 余钰 李慧 |
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| 作者单位： | 兰州理工大学,防震减灾研究所,甘肃,兰州730050;兰州理工大学,防震减灾研究所,甘肃,兰州730050;兰州理工大学,防震减灾研究所,甘肃,兰州730050 |
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| 摘 要： | 寻找重力式挡土墙抗倾覆稳定性安全系数和抗滑移稳定性安全系数与对应可靠度指标的关系.针对甘肃某粘土边坡设计36种不同截面尺寸的挡土墙,利用MATLAB程序分别计算每种挡土墙的安全系数和可靠度指标,可靠度指标的计算方法为一次二阶矩法中的验算点法.分别绘制抗倾覆稳定性安全系数和抗滑移稳定性安全系数与可靠度指标的关系曲线图,可以看出可靠度指标随着对应安全系数的增大而增大.
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| 关 键 词： | 重力式挡土墙 稳定性 安全系数 可靠度指标 |
Relationship between safety factor and reliability index of retaining wall's stability |
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| DU Yong-feng,YU Yu,LI Hui. Relationship between safety factor and reliability index of retaining wall's stability[J]. Journal of Lanzhou University of Technology, 2008, 34(3) |
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| Authors: | DU Yong-feng YU Yu LI Hui |
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| Abstract: | The relationship between the safety factor of anti-toppling and anti-sliding stability and its corresponding reliability index of the gravity retaining wall was determined.36 types of retaining walls with different section dimensions were designed for a cohesive soil slope in Gansu province.The safety factor and reliability index of these retaining walls were computed with MATLAB software.The design point method in the linear second-order-moment theory for structural reliability analysis was taken as the computative method for reliability index.The curves representing the relationship between safety factor for anti-overturn and anti-slide and the reliability index was plotted.It was shown by the figures that the reliability index increased with its corresponding safety factor. |
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| Keywords: | gravity retaining wall stability safety factor reliability index |
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