中文摘要：

为减少半刚性基层材料路用性能评价指标,合理评价材料性能,提出基于灰色关联聚类、主成分分析和熵权法的半刚性基层材料路用性能综合评价方法。对多指标进行灰色聚类分析,对同类指标进行主成分分析,得到每类指标的主成分集合,采用熵权法确定每类指标的权重,综合形成既反映全体指标信息又体现指标差异性的综合指标。选择四川广巴高速公路沿线A、B、C、D、E共5种砂岩成型半刚性基层材料,并选择11个路用性能指标评价5种材料的路用性能。评价结果表明：5种材料的性能从优到劣排序为A、B、D、C、E,与灰色关联度评价结果一致,因此,采用综合评价方法易判断材料性能优劣及材料性能间的差异。

英文摘要：

In order to decrease the evaluation indexes of semi-rigid base mixture＇s pavement performance and evaluate the performance rationally,a comprehensive evaluation method of pavement performance was presented based on grey correlation clustering analysis,principal component analysis and entropy weight method.The multi indexes were classed according to grey clustering analysis,each cluster was conducted according to principal component analysis,and principal components assemble was decided.The weight of each cluster was decided according to entropy weight method.The comprehensive index was decided to reflect all the indexes＇ informations and differences.The cement stabilized sandstone mixture＇s pavement performances of 5 samples as A,B,C,D,E were tested,which were sampled from Sichuan Guangba Expressway.The eleven performance indexes were chosen to evaluate the mixture＇s performance.Evaluation result shows that the order from superior to inferior of pavement perfromances is as follows A,B,D,C,E,and the result is consistent with the evalutation result of grey correlation degree,so the comprehensive evaluation method is easier to differentiate the mixtures＇ performances.9 tabs,13 refs.