基于Vague集的路堑边坡设计方案的优选

Optimal Option of Design Plans for Cutting Slope Based on Vague Set

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 concept about Vague set and multi-criteria fuzzy decision-making problem based on Vague set were introduced,its score function was constructed,and this theory of decision-making was applied to choose the optimal design plan for cutting slope.The basic factors that affect the decision-making were analyzed,the multi-criteria system including cost,effect of slope stability,area occupation,construction environment,difficulties and volume disposable was suggested.The expression method of design plans based on Vague set was illustrated,which provided a new way of selecting design plans for cutting slope.Finally,a representative example of deep cutting slope in Yuxiang Expressway project was given to illustrate the application process of the model in detail and the effectiveness of the proposed approach was verified.The research indicates that the model is simple,reliable and has high usability in choosing the optimal design plan for cutting slope.