| 基于拟动力方法的加固边坡稳定性分析 |
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| 引用本文： | 傅永求.基于拟动力方法的加固边坡稳定性分析[J].路基工程,2022,0(1):134-138. |
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| 作者姓名： | 傅永求 |
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| 作者单位： | 五矿二十三冶建设集团第二工程有限公司，湖南株洲 412000 |
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| 摘 要： | 基于对数螺旋破坏机构,采用极限分析上限定理和拟动力的方法,提出一种新型计算方法,计算地震力作用下保证边坡稳定性所需的锚杆加固力,并与利用平移破坏机构所得结果对比,证明该方法的合理性.通过算例进行参数分析,结果表明:对数螺旋破坏机构较平移破坏机构更切合工程实际;边坡所需锚杆加固力随着边坡坡角和地震放大系数的增大而增大;边...
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| 关 键 词： | 极限分析 拟动力 锚杆加固 路基边坡 稳定性分析 |
| 收稿时间： | 2021-04-01 |
Analysis on Stability of Reinforced Slopes Based on the Pseudo-dynamic Method |
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| Abstract: | Based on logarithmic spiral failure mechanism, by adopting the upper bound theorem of limit analysis and pseudo-dynamic method, a new calculation method is proposed to calculate the anchor reinforcement force needed to ensure the slope stability under the earthquake force. The calculated results are compared with those obtained by translational failure mechanism to prove the rationality of the method. Through the parameter analysis of an example, the results show that: the logarithmic spiral failure mechanism is more suitable for engineering practice than the translation failure mechanism; the anchor reinforcement force of the slope increases with the increase of the slope angle and seismic amplification factor; the anchor reinforcement force of the slope decreases with the increase of soil dimensionless cohesion and internal friction angle. |
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