Protection of Critical Assets from the Effects of Ground Vibrations

Abstract

The approaches to control of vibrations in critical science, technology, and healthcare facilities focus on three key elements: (1) the vibration source; (2) the vibration path; and, (3) the vibration receiver. Techniques for modelling, assessment, and control vary depending on the nature of the vibration disturbance. Among the most challenging sources to control are ground motions generated by construction activities and/or heavy industrial processes that contaminate the site environment near vibration-sensitive facilities.

In this paper we discuss recommended approaches to control and management of the effects of ground vibration effects on ultra-sensitive research facilities. Approaches to design assessments and concepts for control are presented, with focus placed on management of the source, characterization of the path, and treatment of the vibration receiver. Illustrative examples and key findings from field testing, modelling, and monitoring are presented from a project involving a research facility located next to a construction site. A discussion on current challenges is provided together with suggestions for future research.