Abstract
When predicted peak particle velocities or frequency contents in Chapter 7 exceed limits set by relevant standard or equipment manufacturer (e.g. Section 1.2) then ground (and foundation) vibration needs to be minimized if possible, its spread through ground minimised or the sensitive receiver provided with a protection against vibration. The simplified approach considered in this volume is based on the use of Equation (2.8), which indicates that ground vibration is minimized by increase in both mass (density ρ) and material damping (e k.r ), and Equation (2.18), which indicates that ground vibration is minimized by decreasing source frequency f, and by increasing Poisson’s ratio ν and shear stiffness modulus G.
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