设计特征对水泥混凝土路面错台的敏感性分析  

Design feature sensitivity analysis for joint pavement concrete pavement faulting

作　　者：王威娜[1,2] 秦煜 吕昊文 闫强 何晓英 WANG Weina;QIN Yu;LV Haowen;YAN Qiang;HE Xiaoying(National and Local Joint Engineering Laboratory of Traffic Civil Engineering Materials,Chongqing Jiaotong University,Chongqing 400074,China;School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China;CREEC(Chongqing)Survey,Design and Research Co.,Ltd.Chongqing 400023,China;Guangxi Trading Technology Co.Ltd.Nanning,Guangxi 530021,China;School of Hohai,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学交通土建工程材料国家地方联合工程实验室,重庆400074 [2]重庆交通大学土木工程学院,重庆400074 [3]中铁二院重庆勘察设计研究院有限责任公司,重庆400023 [4]广西交投科技有限公司,广西南宁530021 [5]重庆交通大学河海学院,重庆400074

出　　处：《江苏大学学报（自然科学版）》2018年第2期222-229,共8页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51508064;51408083);重庆前沿与应用基础研究计划项目(cstc2014jcyjA30018;cstc2016jcyjA0128);桂交科(2013-100-28);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);重庆教委科技研究项目(KJ1500503)

摘　　要：基于LTPP路面错台数据,提出设计特征对水泥混凝土路面错台敏感性的两阶段分析流程.第1阶段对比相关分析、方差分析、灰色关联分析、主成分分析和神经网络方法等5种方法的分析效果,采用图形分析进行验证,提出较优分析方法与关键设计特征.第2阶段将错台数据分为有传力杆和无传力杆数据集,对比相关分析和方差分析结果,结合图形分析得到有/无传力杆路面设计特征敏感性,并从设计层面提出抑制水泥混凝土路面错台的建议.结果表明:相关分析法具有较好适应性;针对有传力杆路面错台,设置传力杆最有效;针对无传力杆路面错台,减小面板长度较有效.Based on the long-term pavement performance(LTPP)faulting data,the sensitivity analysis was divided into two steps.In the first step,5 methods of correlation analysis,variance analysis,grey correlation analysis,principal component analysis and neural network method were compared.Graphical analysis was used to verify the accuracy.The optimal analysis method and the key design feature were presented.In the second step,the whole data were divided into two datasets of dowel and no-dowel sections.Correlation analysis and variance analysis were used to analyze the sensitivity of design feature.With the graphical analysis,the design feature sensitivity for dowel and no-dowel sections was also analyzed,and the suggestions for controlling faulting were proposed.The results indicate that correlation analysis performs the best.For sections with dowel bar,setting dowel bar is the most effective method.For sections without dowel bar,decreasing joint space is more effective method.

关 键 词：水泥混凝土路面 错台 LTPP数据 设计特征 敏感性分析 

分 类 号：U418.6[交通运输工程—道路与铁道工程]