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Flow-Chart for Influence Estimation of Underwater Blasting  

Park, Sun-Joon (동신대학교 토목공학과)
Park, Yeon-Soo (전남대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.12, no.5, 2008 , pp. 47-54 More about this Journal
Abstract
In this study, ground vibration values and damping coefficient produced by underwater blasting were measured and analyzed. Equations of vibration, $V=K(SD)^{-0.536}$, were presented from quantitative experiment results. The K Values are classified with 1.507, 2.005 and 2.939 respectively at 50%, 90% and 95% reliability. Also, hydrospace noise in aquafarm and noise in atmosphere as well as ground vibrations were measured, and maximum values of these results were 86.8dB(A), 147.8dB(A), 0.244cm/s, respectively. Equations of hydrospace noise, $SL=293.2SD^{-0.164}$, was presented from quantitative experiment results. Also, the flow-chart for influence estimation and underwater blast design was presented from these results. The results of the study may be applied for the evaluation of the influence on aquafarm as a basic data before having main underwater blasting at construction sites.
Keywords
Equation of vibration; Hydrospace noise; Reliability index; Underwater blasting;
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Times Cited By KSCI : 1  (Citation Analysis)
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