IDENTIFICATION AND TRANSFORMATION OF THE FOUNDATION PARAMETERS FOR AIRPORT PAVEMENT

In this paper, an identification and transformationmethod for foundation parameters of airport pavement is proposed.Based on the theory of Winkler foundation plate and the theory of elasticsemi-space model, the theoretical deflections of the airport pavement arederived. The least square method is used to identify theresilience modulus of foundation E_0 and the response modulus K byfitting the testing and theoretical deflections. Thetransformations from E_0 to K and from Kto E_0 are also realized by using the equal deflection values of testingpoints. A testing deflection of an airport pavement is used as a numericalexample. Table 2 shows the identification results of K and E_0.Table 3 and Fig.2 show the high accuracy of the results by comparing the testingdeflection with the identification deflection. Table 4 and Table 5 show that wemay easily transform E_0 to K and then transform K to E_0 of theairport pavement.