Numerical assessment of ground vibrations i̇nduced by piles i̇nstallations on surrounding buildings

In this thesis, a comprehensive understanding of impact pile driving on nearby building is presented. The theoretical concept is sufficiently covered. Also, reliable calculation methods that can be used to estimate Peak Particle Velocity as a function of distance from the driven pile are reviewed. Different types of piling-induced vibrations are discussed. The properties of dynamic hammer, pile geometry and soil parameters that govern piling-induced vibrations are highlighted. As well as impedance of hammer, pile and soil are explained. In This thesis, the finite element model was utilized to investigate the effect of both horizontal distance and penetration depths during dynamic pile driving on nearby building. A series of seventy-seven PLAXIS 3D models were established for five-story concrete framed structures to examinate how its different floors and foundations are affected by piling-induced vibrations. Furthermore, one of the novel aspects of this paper is to investigate how piling-induced vibrations affect resident's comfort besides building safety. Another novel aspect, that ratio of vibrations on the building to vibrations on the soil at symmetric distances is computed. Moreover, a comprehensive two-ways sensitivity analysis was performed to illustrate how the structure's floors are affected by variation of hammer, pile and soil properties, in terms of both horizontal distance and pile penetration depths. Keywords: Plie Driving-induce vibrations, Resident's Comfort, Structural damage, Finite Element Modeling, Buildings to Soil Vibration-Induced Ratio, Sensitivity Analysis