Rigid Surface Of Cement Concrete Overlay Design Theory And Method Of Calculation

Research on theory and methods of the overlay on existing rigid concrete pavements, which is on semi-infinite elastic medium to moving load, is involved in this paper. And research will be connected with NDT. The disquisition on separable overlay is highlighted.Exact solutions are derived for the forced vibration of plate on elastic foundation to moving loads, which is based upon the use of the 2-D Fourier transforms to the motion equations and boundary conditions. Following a series of deduction, a calculation programme by the methods of numeric integration in Fortran is provided. And the thickness of the overlay is achieved.The target of this paper is to set up connection between NDT and the methods. If flexibility of the overlay is measured, the thickness of it is gotten straightly through this connection.