| 炎汝高速公路边坡锚杆-放坡支护协调优化设计 |
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| 引用本文： | 冯磊,李智武,杨仕教.炎汝高速公路边坡锚杆-放坡支护协调优化设计[J].南华大学学报(自然科学版),2018,32(5):55-59, 64. |
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| 作者姓名： | 冯磊 李智武 杨仕教 |
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| 作者单位： | 南华大学 资源环境与安全工程学院,湖南 衡阳 421001,南华大学 资源环境与安全工程学院,湖南 衡阳 421001,南华大学 资源环境与安全工程学院,湖南 衡阳 421001 |
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| 摘 要： | 炎汝高速公路桂东连接线段LK0+200～LK0+300右侧山体边坡出现了滑坡灾害,拟采用锚杆-放坡组合支护治理方案.为实现治理方案优化设计,根据协调锚杆长度L与放坡坡度i,推荐了42组支护方案,利用数值模拟软件对各方案进行边坡建模分析计算,获得边坡稳定安全系数、边坡剪切力应变随锚杆长度和边坡坡度的变化规律.通过施工治理成本最小化原则分析,最终给出了锚杆长度9.5 m、坡度44°的优化方案,为治理炎汝高速公路路段失稳边坡提供借鉴.
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| 关 键 词： | 滑坡治理 锚杆-放坡支护 协调优化 数值模拟 |
| 收稿时间： | 2018/4/24 0:00:00 |
Coordination Optimization Design of Bolt and Grading Support for Slope of Yanru Expressway |
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| FENG Lei,LI Zhiwu and YANG Shijiao.Coordination Optimization Design of Bolt and Grading Support for Slope of Yanru Expressway[J].Journal of Nanhua University:Science and Technology,2018,32(5):55-59, 64. |
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| Authors: | FENG Lei LI Zhiwu and YANG Shijiao |
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| Institution: | School of Resource & Environment and Safety Engineering,University of South China,Hengyang,Hunan 421001,China,School of Resource & Environment and Safety Engineering,University of South China,Hengyang,Hunan 421001,China and School of Resource & Environment and Safety Engineering,University of South China,Hengyang,Hunan 421001,China |
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| Abstract: | Landslide disasters have occurred on the slope of the right side of LK0+200~LK0+300 in the Yanru Expressway,and it is proposed to use a combination of anchor and sloping support.In order to optimize the design of the treatment plan,based on the coordination of the length L of the anchor bar and the slope gradient i,42 groups of support schemes are recommended.This paper uses numerical simulation software to perform slope modeling and analysis calculations on each program to obtain a stable safety factor for the slope.Slope shear force strain changes with length of anchor rod and slope of slope.Based on the analysis of the principle of minimization of construction management costs,an optimization plan for the length of the anchor rod of 9.5 m and the slope of 44° is given,which provides reference for controlling the unstable slope of the Yanru Expressway section. |
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| Keywords: | landslide management bolt and grading support coordination optimization numerical simulation |
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