机场道面无损检测中的参数识别研究

PARAMETER IDENTIFICATION RESEARCH OF AIRPLANE PAVEMENT IN NONDESTRUCTIVE TEST

提出一种机场道面无损检测实验中地基模量Ｅ１的动态识别的新方法，以运动荷载下弹性半空间地基板系统力学模型的动态方程解析解为基础，采用最小二乘方准则，通过无损实测挠度与理论挠度相似合，拟合过程中采用数学规划的求优算法快速地识别出Ｅ１。通过实例计算，表明本文结果正确，基本理论方法及程序可直接应用于场道的非破坏性实验中来获取地基模量Ｅ１。

Ih this paper, a new method about identification of the resilience modulus of foundation is proposed. Based on the analyt- ical solutions of the dynamic equations of foundation plate system on elastic half-space under moving loads, theoretical deflec- tion and testing deflection are fitted by least square method, the resilience modulus of foundation E1 is rapidly identified by optimal computation of mathematical programing through the fitting course. Numerical example demonstrates that the results in this paper are correct and its theoretical method and pragrams can be directly used to obtain the resilience modulus of founda- tion E1 of airplane pavement by nondestructive test.