EXPERIMENTAL STUDY ON VEHICLE-INDUCED VIBRATION OF COMPLICATED GROUND AND BUILDINGS

The vibrations of ground and neareby buildings indcuced by running vihcile are studied by means of onsite experiments on a complicated ground near a highway road. The theory of vehicle-ground coupled vibration is verified by comparing numerical calculation results with those of vehcile-running experiments. The results show that the vibration levels of ground and building increase with vehcile speed, but decrease with the distance between the measuring point and the vibration source. For muti-layer ground, the higher layer vibrates more strongly than lower ones. An isolation ditch with a suitbale depth performs well for suppressing vehicle-induced vibration of the road surface, and effectively keeping the waves with higher frequencies from propagating. Consequently, the building vibration is reduced.