Evaluation of vibration limits and mitigation techniques for urban construction.
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2013-10-01
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Abstract:The overriding purpose of this research was to develop a comprehensive framework to address
vibration issues prior to and during construction, including calculation of anticipated ground
vibrations during project design, condition surveys of structures, vibration limits, mitigation
strategies to control ground and structural vibrations from construction sources, and
recommendations for improvement of current FDOT Specifications. Using the field data specific to
Florida as collected and sorted over the course of this research, simple equations were developed
to calculate the maximum peak particle velocity (PPV) of expected ground vibrations prior to
construction operations. This research also provided a comprehensive review of and guidelines for
pre-construction condition surveys, analysis of the effects of different factors on vibration limits,
accompanied by a comparison of the criteria from diverse sources, a summary of the existing
preventive and counteractive vibration mitigation techniques used by the industry, and a review of
effective mitigation measures to decrease vibration effects from roadway and bridge construction
operations in Florida. Finally, the relevant findings of this research were compiled under
“Recommendations for Improvement of FDOT Specifications.” These recommendations cover a
broad base, including pile driving operations and their vibration effects, survey of sites and
structures, mitigation measures, calculation of PPV prior to construction, and vibration limits.
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