摘要
沥青路面早期性能指标权重直接影响路面早期性能综合评价。为了准确确定沥青路面早期性能指标权重,文章运用非线性规划方法将主成分分析与粗糙集理论有机结合,提出了一种新的高速公路沥青路面早期性能指标权重确定方法,有助于多指标评价路面综合性能,有利于预防性养护的有效实施;通过实例分析得到基于路面实测数据的沥青路面早期性能指标权重系数,并揭示了各性能指标的重要性。研究结果表明,裂缝率与车辙深度所占权重系数分别为0.23、0.18,对沥青路面早期性能影响较大,与实际相符,从而证明了该方法的可行性。
The weights of initial performance indexes of asphalt pavement are crucial for the compre-hensive pavement evaluation .In order to determine the index weights accurately ,and based on the combination of the principal component analysis and rough set theory by nonlinear programming math -ematical method ,a new index weights determination method of initial performance of expressway as-phalt pavement is proposed .The method is helpful for multi-index evaluation of pavement comprehen-sive performance and the implementation of preventive maintenance .Then through a case study ,the index weights based on the actual survey data are gotten and the importance of the indexes is ana -lyzed .The results show that the weights of crack rate and rutting depth are 0.23 and 0.18 ,which in-dicates that the influence of crack and rutting on the asphalt pavement initial performance is greater . The obtained result is consistent with reality ,thus proving the feasibility of the method .
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2016年第6期801-806,共6页
Journal of Hefei University of Technology：Natural Science
基金
国家自然科学基金资助项目(51508064
51408083)
中国博士后科学基金资助项目(2014M562287)
重庆市教委科学技术研究资助项目(KJ1500509)
重庆市前沿与应用基础研究计划资助项目(cstc2014jcyjA30018)
重庆市博士后科研项目特别资助项目(Xm2014094)
交通土建工程材料国家地方联合工程实验室开放基金资助项目(LHSYS-2016-01)
关键词
沥青路面
早期性能
指标权重
主成分分析法
粗糙集理论
非线性规划方法
asphalt pavement
initial performance
index weight
principal component analysis
rough set theory
non-linear programming mathematical method
