Abstract
Based on the Pasternak two-parameter foundation model, this study establishes a dynamic model for analyzing the deflection of slabs under moving loads. The variational method and reciprocal equal work theorem are employed to obtain the deflection solution. Additionally, the Matlab program is utilized with practical examples to calculate the foundation response modulus under actual conditions when the pavement panel simultaneously transmits shear and bending forces. By fitting measured dynamic deflections with theoretical predictions using the least square method, the response modulus K of the foundation is determined. This demonstrates that our proposed model effectively captures the realistic behavior of rigid pavements..