主成分分析法在地下洞室群施工中的应用

Application of principal component analysis in construction schemes of underground structure group

为全面考虑大型地下洞库群施工过程中涉及的诸多因素,以选择合适的施工方案,介绍了主成分分析方法的基本原理及实施步骤,采用了层次分析法确定影响因素的权重。利用此方法在充分考虑大型地下洞室群施工过程中诸多影响因素的基础上,结合工程实例对施工方案进行了评价,并从中优选出最佳施工方案。层次主成分分析法分析各个指标因素之间的相对重要度,使施工方案的评价更具有客观性。

For considering the factors in construction of large-scale underground structure group engineering so as to find the optimal construction schemes, the method of hierarchy principal component analysis was introduced, in which influencing factors were determined by hierarchy analysis method. A sample was analysed based on the consideration of the factors in construction, and an optimal construction scheme was presented. The relative important degree of every factors was analysed with this method. Therefore, the evaluation of the construction scheme is more objective.