沥青路面材料参数全反演技术研究  

STUDY ON BACK-CALCULATING TECHNOLOGY OF ASPHALT PAVEMENT PARAMTERS

作　　者：李松辉[1] 商庆森[1] 

机构地区：[1]山东工业大学土建与水利工程学院,济南250061

出　　处：《山东工业大学学报》2000年第1期21-24,共4页

基　　金：山东省交通厅;省教委联合资助项目

摘　　要：根据沥青路面材料参数反演问题的特点 ,建立了以实测弯沉盆与理论弯沉盆之均方根误差为目标函数 ,以限制泊松比范围为约束函数的最优化问题数学模型 ,并采用内罚函数法求解该不等式约束最优化问题 .在求解过程中 ,应用 Powell方向加速法之改进算法求解系列无约束问题 .根据上述原理 ,编制了沥青路面材料参数全反演程序 BCEU.The characteristics of problem of inverse calculating asphalt pavement material parameters is deeply discussed. The mathematical model of optimal inverse calculation problem, including the objective function with square root error between the practical and the theoretical deflection bowl and constrained function with limiting the range of Poisson ratio, is studied. And the ‘barrier function method’ is used to solve this constrained optimal inverse calculating problem. During the calculation the ‘Powell method’ is used to solve a series of unconstrained optimal problem. On the basis of the above mentioned studies, The program named 'BCEU' for inverse calculating the asphalt pavement material parameters is developed. The influence of different inverse calculated results upon stress and strain on critical points is seriously researched.

关 键 词：沥青路面 材料动态参数 公路 反演技术 

分 类 号：U416.217[交通运输工程—道路与铁道工程]