深基坑支护方案的多属性决策分析

MULTI-ATTRIBUTE DECISION-MAKING ANALYSIS ON SELECTING RETAINING SCHEME OF DEEP FOUNDATION PIT

深基坑支护工程是一个复杂的系统工程,支护方案的决策受到技术、经济、环境以及风险等诸多因素的影响,决策的相关信息(权重和方案的指标值)有时很难精确给出,但可以用排序或区间等线性不等式形式来表示它们。为了处理这样的不完全信息下的决策问题,采用了基于数学规划的多属性决策方法,通过检验方案之间的优势关系,获得了最优支护方案,并通过实例说明了该方法的可行性和有效性。

The selection of retaining scheme for deep foundation pit is presented. The selection involves multiple objectives such as technology,economics,environment,and risk. The decision relevant information such as attribute weights and the values of alternatives about some attributes may be not known exactly. Rather,they are to be expressed as a set of linear inequalities such as rankings and/or bounds. To cope with such decision-making question with incomplete information,a mathematical programming model based multi-attribute decision-making approach is used,which can obtain a satisfactory retaining scheme by checking dominance of alternatives. A practical example is given to show the feasibility and effectiveness of the presented method.