Investigation of Peak Particle Velocity Variations during Impact Pile Driving Process

摘要: Impact pile driving is a multi-component problem which associated to multi-directional ground vibrations. At first, vibration transferred from the hammer and then common interface of soil. This environment has great impact on adjacent structures, causing disturbance residents also damage buildings. It high importance have sufficient estimation level in order maintain comfort near site prevent structural In this study, finite element model, using ABAQUS, with ability simulating continuous process surface, was introduced. The model verified by comparing computed peak particle velocities those measured field. Parameters affecting velocity (PPV), for example elastic modulus, shear strength parameters, force, diameter, etc. were considered, variations PPV investigated. Results present study indicated that at surface does not occur when toe located surface; as penetrates into ground, reaches maximum value critical depth penetration. Moreover, amplitude reduced logarithmically increasing distance pile. Also, radial distances 3 20 m, occurred between 1 5 m depths results showed being directly proportional friction angle cohesion intercept inversely modulus