路面结构层材料非线性特性反演  

Material Nonlinear Characteristic Backcalculation of Pavement Structure Layers

作　　者：梁新政[1] 倪富健[2] 王复明[3] 徐宏[1] 

机构地区：[1]江苏省交通科学研究院,江苏南京210017 [2]东南大学交通学院,江苏南京210096 [3]郑州工业大学水环学院,河南郑州450002

出　　处：《公路交通科技》2002年第5期5-7,共3页Journal of Highway and Transportation Research and Development

摘　　要：针对基于落锤式弯沉仪的路面结构层模量线弹性反演在某些情况下的不足之处 ,引入路面材料的非线性模型 ,并结合非线性最小二乘优化 ,研究路面结构层材料非线性特性有限元反演方法 ,通过实测弯沉盆的反演验证 ,表明可以较好地解决在基层或底基层上进行FWD检测 。In order to overcome the shortcoming in some cases of linear elastic moduli backcalculation theory for flexible pavement based onalling Weight Deflectometer (FWD), a finite element method has been researched, in which material nonlinear model and nonlinear least squares optimization method are integrated It is demonstrated that this method can deal with the backcalculation of moduli based on the data measured on base layer or subbase layer for weak layer identification or construction monitor

关 键 词：非线性特性 反演 路面结构层 路面材料 公路工程 模量反算 落锤式弯沉仪 

分 类 号：U416.2[交通运输工程—道路与铁道工程] U414