基于双层决策模型的路基边坡施工方案比选研究

Research on Comparison and Selection of Subgrade Slope Construction Schemes Based on Two Level Decision Model

针对高速公路边坡施工备选方案的组合灵活、方案繁多问题,基于属性层次模型(AHM)提出双层决策模型,综合考虑安全性、经济性、环保性等方面,通过上层精简总方案数量、下层优选最佳方案,以达到简便快速决策施工方案的目的。以周口~南阳高速公路项目为依托,基于上下路堤填料、护坡方式、坡率优化等边坡施工技术进行方案分类分组,选择合适的评价指标,建立双层决策模型,优选出最符合工程特征的方案。比选结果表明了该决策方法的有效性,可以普遍广泛应用于多组合方案决策问题中。

In view of the problems of flexible combination and various schemes of highway slope construction alternatives,a two-level decision-making model is proposed based on attribute hierarchy model(AHM).Considering safety,economy and environmental protection,the upper layer reduces the total number of schemes and the lower layer selects the best scheme,so as to achieve the purpose of simple and rapid decision-making of construction scheme.Based on the Zhoukou-Nanyang Expressway project,the schemes are classified and grouped based on the upper and lower embankment filling materials,slope protection methods,slope ratio optimization and other slope construction technologies.The appropriate evaluation indexes are selected,and a two-level decision-making model is established to optimize the scheme that is most in line with the engineering characteristics.The comparison results show that the method is effective and can be widely used in the multiple combination decision making problems.