Dynamic response of an elastic half-space underlying an infinite Euler-beam to moving load

Researching subgrade dynamic response under moving load and analyzing the induced vibration in the ground can help with post-construction settlement control and environmental assessment, which are of great significance for both traffic engineering and geotechnical engineering. On the basis of previous researches, a study on dynamic response of elastic half-space beneath an infinite Euler-beam subjected to a moving point load is performed, and direct integral expressions of stresses and displacements in the ground are given through theoretical derivation. Then, numerical results are obtained from integral expressions and a numerical analysis is carried out to discuss the dynamic effects of load speed and elastic modulus of the half-space. It is found that, the dynamic effects of a moving load in the half-space go deeper and farther when the moving load speeds up, and that a larger elastic modulus of the ground can lower the effects of high-speed moving load.