深基坑支护方案优选的组合赋权灰色关联分析

Combination Weighting Grey Correlation Analysis of Deep Foundation Pit Supporting Scheme Optimization

为了能够更好地对深基坑支护方案进行评价优选,基于层次分析(指数标度)法、欧氏距离法及灰色关联理论,计算了深基坑不同支护方案的加权关联度,提出了深基坑支护方案优选的组合赋权灰色关联分析法,并结合工程实例进行了应用分析.结果表明:运用组合赋权灰色关联分析法避免了单一方法赋权的片面性,可综合考虑主、客观因素的影响,选择出可行的最优方案,对深基坑支护方案优选具有一定的参考意义.

In order to make a better evaluation of deep foundation pit supporting scheme optimization,based on hierarchy analysis,Euclidean distance and grey correlation analysis theory,the article calculated the weighted correlation degree of different deep foundation pit supporting schemes,developed the combination weighting grey correlation analysis method of deep foundation pit supporting scheme optimization,and analyzed an engineering example by this method.The result showed that the combination weighting gray correlation analysis method for deep foundation pit supporting scheme optimization avoided the one-sidedness of weighting by a single method,comprehensively considered the subjective and objective factors,and chose the feasible optimum scheme,and it is of great practical significance for deep foundation pit supporting scheme optimization.