| 二维边坡稳定性分析的最小势能法新解 |
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| 引用本文： | 孙加平,卜伟斐,胡金木,温树杰.二维边坡稳定性分析的最小势能法新解[J].力学与实践,2017,39(4):349-353. |
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| 作者姓名： | 孙加平 卜伟斐 胡金木 温树杰 |
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| 作者单位： | 1. 江西工业工程职业技术学院采矿与建筑工程系, 江西萍乡 337055;
2. 江西理工大学建筑与测绘工程学院, 江西赣州 341000 |
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| 摘 要： | 针对最小势能法研究的不足,通过条块虚位移方向的静力平衡方程确定滑面上剪应力的解析解,构建了一种新的剪切势能计算模型.同时,提出了一种多地层边坡稳定性分析方法.算例结果表明:剪切势能对边坡稳定性系数会产生影响,使得计算结果更为合理;运用文中方法计算得到边坡稳定性系数与极限平衡法的结果较为一致,表明文中的计算方法是可行且合理的;文中多地层边坡的计算模型,考虑了土层滑面长度以及法向力对边坡抗剪强度的贡献,且计算简便,易于工程人员使用.
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| 关 键 词： | 最小势能 滑面 剪应力 边坡 稳定性系数 |
| 收稿时间： | 2017-01-04 |
NEW SOLUTION OF 2D SLOPE STABILITY ANALYSIS BASED ON MINIMUM POTENTIAL ENERGY PRINCIPLE |
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| SUN Jiaping,BU Weifei,HU Jinmu,WEN Shujie.NEW SOLUTION OF 2D SLOPE STABILITY ANALYSIS BASED ON MINIMUM POTENTIAL ENERGY PRINCIPLE[J].Mechanics and Engineering,2017,39(4):349-353. |
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| Authors: | SUN Jiaping BU Weifei HU Jinmu WEN Shujie |
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| Institution: | 1. Department of Mining and Construction Engineering, Jiangxi Vocation College of Industry & Engineering, Pingxiang 337055, Jiangxi, China;
2. School of Architecture and Surveying Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China |
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| Abstract: | For insufficient of minimum potential energy method research, model of shear potential with static equilibrium equation of sliding body virtual displacement is proposed, which can solve shear strength on failure surface. Moreover, stability analysis method of multi layer slope is forwarded. Results of paper examples show that: shear potential energy of sliding mass can influence stability factor of slope, and it can obtain reasonable result;paper method is feasible and reasonable, which result from stability factor of proposed method is close to limit equilibrium method;analysis method of multi layer slope not only considers contribution of sliding surface length and normal force, but also it is simple and easy to be used by engineering. |
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| Keywords: | minimum potential energy failure surface shear strength slope stability factor |
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