ABSTRACT
Risk assessment of ground vibration in early stages of design and construction rely on limited data, and usually the geological and geotechnical site characterization does not involve direct measurements of dynamic soil properties. However, combining a probabilistic approach and empirical knowledge with a semi-analytical model of ground vibration, the paper proposes a method for evaluating ground vibration based on information obtained from borehole logs. The computational model assumes horizontal stratification of soil with homogeneous material in each layer. The properties of each deposit and the layer depths are treated as stochastic variables, and correlation between the properties of each layer is accounted for. Three example cases are studied in which the transmission loss with distance from a vertical harmonic load has been determined. The proposed method is computationally efficient and may be used for preliminary assessment of the risk associated with spreading of ground vibrations from construction work or traffic.
