| 考虑孔隙水压力作用的二级边坡稳定性上限分析 |
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| 引用本文： | 郭勇.考虑孔隙水压力作用的二级边坡稳定性上限分析[J].中南公路工程,2014(4):252-255. |
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| 作者姓名： | 郭勇 |
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| 作者单位： | 湖南省交通科学研究院,湖南长沙410015 |
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| 摘 要： | 二级边坡与简单边坡或单级边坡相比，能够在不放缓坡度的情况下提高边坡的稳定性，具有广泛的工程应用价值，在考虑孔隙水压力作用下对二级边坡的稳定性进行了分析，对孔隙水压力的做功功率进行了推导，求出了二级边坡在孔隙水压力作用下的上限解，采用序列二次规划算法对其进行优化计算，并利用工程实例对其解的有效性进行了验证，分析边坡土体物理强度指标在考虑孔隙水压力的作用下对边坡稳定性的影响。
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| 关 键 词： | 孔隙水压力 二级边坡 稳定性系数 极限分析 |
Stability Analysis of Secondary Slope under Pore Water Pressure |
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| GUO Yong.Stability Analysis of Secondary Slope under Pore Water Pressure[J].Central South Highway Engineering,2014(4):252-255. |
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| Authors: | GUO Yong |
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| Institution: | GUO Yong (Hunan Communications Research Institute, Changsha, Hunan 410015, China) |
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| Abstract: | Compared with the Simple slope or single-stage slope, secondary slope with wide engineering application value can improve the stability without reducing slope rate. The stability of secondary slope are analyzed under the action of pore water pressure. The work rate of the pore water pressure is derived. The upper limit solutionof the secondary slope under pore water pressure is calculated. Sequential quadratic programming algorithm is adopted to carry out optimization calculation. The engineering example is used to verify the effectiveness of the solution. The impact on slope stability of slope soil physical strength index under the pore water pressure is analyzed. |
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| Keywords: | Pore water pressure Secondary slope Coefficient of stability Limit analysis |
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