| 基于突变理论的路基边坡冲刷稳定性评价 |
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| 引用本文： | 颜可珍,廖华容. 基于突变理论的路基边坡冲刷稳定性评价[J]. 长安大学学报(自然科学版), 2011, 0(2) |
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| 作者姓名： | 颜可珍 廖华容 |
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| 作者单位： | 湖南大学土木工程学院; |
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| 基金项目： | 教育部博士点新教师基金资助项目(200805321039) |
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| 摘 要： | 采用一种结合模糊数学和突变理论的新方法,评价路基边坡在降雨条件下的冲刷稳定性,在充分利用现场监测数据的基础上,建立边坡冲刷稳定性的综合评价体系。为避免人为确定评价因素权重的主观性,将突变理论运用于边坡综合评价中进行多准则评价决策。选取底层评价指标并根据隶属函数进行标准化计算,运用突变模型中的归一化公式得出边坡冲刷的总突变值,进而实现对边坡安全稳定性的评判。最后通过工程实例进行了分析验证。结果表明,该评价方法结合了模糊数学和突变理论的优点,能有效减少评价因素权重确定的人为主观性。
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| 关 键 词： | 道路工程 稳定性评价 突变理论 路基边坡冲刷 指标隶属度 |
Assessment of scouring stability on subgrade slope based on catastrophe theory |
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| YAN Ke-zhen,LIAO Hua-rong. Assessment of scouring stability on subgrade slope based on catastrophe theory[J]. JOurnal of Chang’an University:Natural Science Edition, 2011, 0(2) |
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| Authors: | YAN Ke-zhen LIAO Hua-rong |
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| Affiliation: | YAN Ke-zhen,LIAO Hua-rong (School of Civil Engineering,Hunan University,Changsha 410082,Hunan,China) |
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| Abstract: | A new method which combines fuzzy math and catastrophe theory was introduced to assess scouring stability on subgrade slope in the condition of rainfall,and a stable slope erosion comprehensive assessment system was developed on the base of on-site monitoring data.In order to avoid the subjectivity of artificial weight,the catastrophe theory is applied to multi-criteria evaluation and decision.Firstly,select the underlying Index from on-site monitoring data and calculate according to standardized membership... |
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| Keywords: | road engineering stability assessment catastrophe theory embankment slope erosion subordinate index |
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