机构地区: 合肥工业大学交通运输工程学院
出 处: 《武汉理工大学学报(交通科学与工程版)》 2010年第4期765-768,共4页
摘 要: 为了获得路面结构各层的实际计算参数,可以使用现场承载板数据来分别反算各层的材料参数.针对刚性承载板下半无限空间体上单层板的工况,推导了承载板分层检测法的理论计算公式.对表达式中无法求解的积分函数式,通过MATLAB程序得到了数值上的规律并进行了函数拟合.根据合宁高速公路扩建的现场承载板检测数据,使用得到的公式对各层材料参数进行计算,并与设计规范推荐值进行比较,结果表明该方法具有实用性. For obtaining actual calculation parameters of each layer in the road structure,field loading plate data can be used to back-calculate material parameters of each layer.Theoretical formula of lay-ered detection using field loading plate was derived,whose conditions were the rigid loading plate and the monolayer layer on a half-infinity space.To solve the integral expression in the theoretical formula,MATLAB was used to compute the corresponding numerical solution,whose law was regressed.Based on actual data of the freeway continuation from Hefei to Nanjing,material parameters gained from corresponding expressions were compared with those of the PRC design standard,it is proved that the method has practicability.
领 域: [交通运输工程]