| 框架预应力锚杆边坡支护结构稳定性分析 |
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| 引用本文： | 朱彦鹏,郑 恒,李 忠. 框架预应力锚杆边坡支护结构稳定性分析[J]. 岩土力学, 2006, 27(Z1): 746-750 |
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| 作者姓名： | 朱彦鹏 郑 恒 李 忠 |
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| 作者单位： | 兰州理工大学 土木工程学院，兰州 730050 |
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| 基金项目： | 甘肃省科技厅攻关项目(No. GK974-调-9) |
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| 摘 要： | 以极限平衡理论及框架预应力锚杆边坡支护结构的滑动面破坏模式为基础，采用毕肖普法，并考虑竖向条间剪力对滑移面抗剪强度的影响，建立了边坡最危险滑移面的搜索模型，并推导了稳定系数的求解公式。运用遗传算法对支护结构最危险滑移面进行动态搜索和确定，计算其稳定性系数。该方法避免了在优化设计中陷入局部最小值的缺点，更具有有效性和准确性。
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| 关 键 词： | 预应力锚杆 稳定性 圆弧条分法 滑移面 遗传算法 |
| 收稿时间： | 2006-05-10 |
Stability analysis of grillage supporting structure with prestressed anchors |
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| ZHU Yan-peng,ZHENG Heng,LI Zhong. Stability analysis of grillage supporting structure with prestressed anchors[J]. Rock and Soil Mechanics, 2006, 27(Z1): 746-750 |
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| Authors: | ZHU Yan-peng ZHENG Heng LI Zhong |
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| Affiliation: | School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China |
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| Abstract: | Based on the limit equilibrium theory and the failure model of grillage supporting structure with prestressed anchor, using Bishop method for slope stability, and considering vertical inter-slice shearing force effects on the shear strength of soil side-slope, the search model of the most dangerous slip surface is set up; ann the solving formula of stability factor is derived; calculation of integral stability of slip surface has been carried out by using the genetic algorithms. The method can avoid getting in local minimum in optimal design; and it has more credible and accurate advantage. |
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| Keywords: | prestressed anchor stability circular slice method slip surface genetic algorithms |
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