基于灰理论的基坑支护方案优选研究

RESEARCH ON THE SCHEME OPTIMIZATION OF FOUNDATION PIT BRACING BASED ON THE GRAY SLOPE-CORRELATION THEORY

在理论分析的基础上构建了一个评价基坑支护方案的三级指标体系,并给出专家逻辑推理评语体系和一致性检验的方法,以及确定理想方案指标期望值的方法。利用灰色关联分析法,建立基坑支护方案的多目标决策方法,同时提出利用多级指标体系来相互检验结论的一致性。并通过具体的工程实例进一步验证本方法的实用性和合理性。

This paper establishes a three layers evaluation target of foundation pit bracing through theory and engineering practice. It gives a system of logic inference comment and a method of consistency checking from the expert, and it also gives out the method of determining the target expectation of ideal scheme. At last it gives the multi - target method about foundation pit bracing using the gray slope correlation analytic model of gray systematic theory. At the same time it advises that we can use this system to check the consistency using multi- targets system. The method is verified to be rational and practical through a real project.