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介绍了Vague集的基本概念和Vague集多准则评价模糊决策问题,构造了其记分函数,并将该决策理论应用于路堑边坡设计方案的优选问题中。分析了影响方案优选的基本因素,给出了工程造价、边坡稳定效果、占地、施工环境、施工难度和弃方量等评价指标,阐述了各备选方案的Vague集表达方法,为路堑边坡设计方案的选择提供了新的思路。最后以渝湘高速公路的某深挖路堑边坡为例,详细说明了该评价模型的应用步骤,并证实了该方法的有效性。研究表明,基于Vague集的路堑边坡方案优选模型,计算过程简单,评价结果可靠,具有较高的实用性。
The basic concepts of Vague sets and fuzzy decision of Vague sets multi-criteria evaluation are introduced, and their score functions are constructed. The decision theory is applied to the optimization of cutting slope design schemes. The basic factors affecting the optimization of the scheme are analyzed and the evaluation indexes such as project cost, slope stability effect, land occupation, construction environment, construction difficulty and abandonment are given. The Vague set expression method of each alternative scheme is expounded, Slope design options provide a new way of thinking. Finally, taking a deep cut slope in Yuxiang Expressway as an example, the application procedure of the evaluation model is described in detail, and the validity of the method is proved. The research shows that the optimal model of cutting slope based on Vague set is simple, the calculation process is simple, the evaluation result is reliable and has high practicability.