Preface. List of Symbols. Introduction.Dynamic Diagnosis of pavement structures. Stress-wave velocity measurement method: Principle of method and experimental technique; Theoretical assumptions. Mechanical impedance methods: Complex modulus of elasticity; Function of mechanical impedance; measurement method; Experimental apparatus; Application to non-destructive testing of the subgrade; Dynamic viscoelastic properties of bituminous materials; Dynamic viscoelastic properties of soil materials. Dymanic diagnosis of subgrade: Application of the phase velocity method; Application of the mechanical impedance method. Diagnosis of dynamic elasticity and rigidity of layered pavement structures: Degermination of the characteristics of rigidity and elasticity using detailed measurement; Simplified procedures for the assessment of the elasticity and rigidity characteristics of pavement structures; Evaluation of the rigidity of layered pavements using deflection determined by means of stress-wave velocities; Diagnosis of dynamic elasticity and rigidity of highway pavement sections; Testing pavements under construction; Influence of base and sub-base layers on the overall rigidity of pavement structures.

Model of the equivalent plate on subgrade. Calculation of cross-section of equivalent plate and calculation of stress in layered pavement structures; Calculation of stess in layered structures with defective layer contact; Coherence of layered pavement stiffness with the characteristics of the equivalent plate; Variations of normal and tangential stress for highway cement concrete pavements with perfect layer contact. Variants of the dynamic theory of the equivalent plate on subgrade. Layer in contact the the half-space: Torsional vibration of layer onviscoelastic half-space; Torsional vibration of mass on layered half-space; Vertical vibration of layer on viscoelastic half-space. Stress waves in layer on half-space without shear contact: boundary and contact conditions at the interface; Frequency equation; Curves of dispersion for stress-wave phase velocities; Numerical results. Plate on half-space without shear contact: conditions at the interface of plate and half-space; Normal dynamic load on circular contact area; Deflection plate; Banding moments of equivalent plate; Transverse forces on equivalent plate; Reaction of subgrade; Numerical calculation of components of state vector ofr highway pavements under construction or completed; Comparison of deflections and stresses in layered pavements according to theory of equivalent plate on subgrade and theory of layered half-space. Technical theory of plate on subgrade: Dyunamic simplified model of soil base; Despersion curve for stress-wave phase velocities and coefficient of equivalent inertia; Axial symmetric dynamic load of unbounded plate on subgrade; Solution in integral form; Solution in closed form; Compensation of subgrade inertia by coefficient of mass increase of plate; Components of the state vector under a dynamic load uniformly distributed on a circular area; Physical model of thin plate on subgrade with rigidity defined by the dispersion curve for flexural stress wave; Numerical results. Dynamic interaction of plates with the subgrade for characteristic loads.

The applied variant of the theory of an equivalent plate on subgrade. Reduction of partial differential equation to an ordinary differential equation: Application of the method of initial parameters. Dynamic load at the boudary region of a plate on subgrade: Half-plate on subgrade; Survey of relationships for state vector components on a half-plate subgrade; Numerical results. Plate strip on subgrade: Survey of relationships for state vector components of plate strip on subgrade; Numerical results. Dynamic stress state near cut transverse joints of plate on subgrade: Influence functions of half-space on subgrade with initial parameters of transvers force FQ0 a.