| 含弱面岩质路堑边坡开挖坡角优化设计方法及应用 |
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| 引用本文： | 夏元友,孙锡民,蒋超,卢小超.含弱面岩质路堑边坡开挖坡角优化设计方法及应用[J].公路交通科技,2006,23(10):25-28. |
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| 作者姓名： | 夏元友 孙锡民 蒋超 卢小超 |
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| 作者单位： | 1. 武汉理工大学,土木工程与建筑学院,湖北,武汉,430070
2. 武汉理工大学,土木工程与建筑学院,湖北,武汉,430070;云南祥临公路建设指挥部,云南,弥渡,675600 |
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| 基金项目： | 教育部新世纪优秀人才支持计划项目(NECE-04-0723)，湖北省青年杰出人才基金(2005ABB022)，云南省交通科技基金项目(云交科教[2004538]号) |
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| 摘 要： | 根据含软弱面岩质边坡的岩体结构特点,概化出含弱面岩质路堑边坡开挖坡角优化模型。建立了基于极限平衡方法的计算含软弱面岩质边坡最优开挖坡角的方法。将这种方法运用于某公路路堑高边坡的实践中,确定了影响其最优开挖坡角因素并确定了正交试验方案表,采用正交试验对各因素进行了敏感性分析,确定了该公路含弱面岩质路堑边坡的最优开挖坡角的合理取值范围,最后通过对该公路边坡实例的分析,证明这种计算模型作为一种计算最优开挖坡角简便途径的有效性和实用性。
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| 关 键 词： | 公路 路堑边坡 最优开挖坡角 极限平衡法 |
| 文章编号： | 1002-0268(2006)10-0025-04 |
| 收稿时间： | 2005-08-04 |
| 修稿时间： | 2005年8月4日 |
Design Method of Optimum Stable Excavating Angle of Rock Slopes Containing Weak Surfaces and its Application |
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| XIA Yuan-you,SUN Xi-min,JIANG Chao,LU Xiao-chao.Design Method of Optimum Stable Excavating Angle of Rock Slopes Containing Weak Surfaces and its Application[J].Journal of Highway and Transportation Research and Development,2006,23(10):25-28. |
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| Authors: | XIA Yuan-you SUN Xi-min JIANG Chao LU Xiao-chao |
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| Institution: | 1. College of Civil Engineering and Architecture, Wuhan University of Technology, Hubei Wuhan 430070, China; 2. Xianglin Road Construction Administrative Headquarter of Yunnan Province, Yunnan Midu 675600, China |
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| Abstract: | According to the structure characters of rock slopes containing weak surfaces,model of roadbed slope containing weak surfaces is built up,and then a design method based on the limit equilibrium is established.The optimum stable excavation angle of the slope containing weak surfaces can be calculated with the method.The method is used in road engineering practice,the sensibility relations of the factors which influence the stable excavation angle of the rock slopes are analyzed and orthogonal test scheme is determined,based on sensitivity analysis as well as reasonable span of the stable excavating angle.At last,efficiency and practicability of the method as a convenient way to calculate the stable excavating angle is proved through the analysis of peactical examples of the road engineering. |
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| Keywords: | road slope optimum stable excavating angle limit equilibrium |
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