摘要
针对目前常用的综合评价模型只能确定边坡稳定性所在等级,不能评价边坡稳定性在所属等级中的好差程度的问题,考虑指标动态权重对边坡稳定性的影响,改进了理想点法,通过引入均衡函数的变权公式,提出了可变权重理想点法,并将该方法应用于四个边坡的稳定性综合评价中。结果表明,可变权重理想点法与灰色关联分析和可拓方法的评价结果基本一致,能够比较精确地确定边坡所属稳定性等级,而且可以确定同一等级内不同边坡稳定性的差别。
Most frequently-used comprehensive evaluation model can determine the stability level of a slope, but it cannot evaluate the degree that the slope belongs to the stability level. Considering the impact of dynamic indicator weight on slope stability, a new approach based on improved ideal point method and variable weight formula with balance rune tions is proposed to evaluate the stability level of a slope. The proposed approach was applied to four slope cases and the analysis results show that the evaluation results obtained by the proposed method basically consists with the results obtained by grey analysis and extension theory. Furthermore, the proposed approach can not only determine the stability level of a slope but also distinguish the differences of the stability of slopes in the same grade.
出处
《水电能源科学》
北大核心
2014年第5期101-104,共4页
Water Resources and Power
关键词
边坡
稳定性评价
理想点法
变权
slope
stability evaluation
ideal point method
varying weights
