Abstract: Winkler’s model is widely used in designing elastic foundation beam and plate, but this model is too simple to reflect the characters of subsoil correctly. A new two-parameter layer model is presented. The model consists of a number of elastic layers, in which the distributions of stress and strain are assumed. Layer stiffness matrix, which expresses the relation of force and displacement on surface of every layer, can be calculated applying integral transformation. Thus, the layer system can be solved through compiling layer stiffness matrixes to form total matrix under the principle of FEM. The model is viewed as an extension of Vlazov model, and proved to be correct comparing with the result gained from Vlazov model. The most important thing is that the result of load embedding in layer model is gained; this means the method presented can be adopted to calculate pile foundations.

Key words: two-parameter layer model, integral transform method, Vlazov model