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Title |
Flow-Chart for Influence Estimation of Underwater Blasting
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Keywords |
진동추정식 ; 수중소음 ; 신뢰성지수 ; 수중발파 ; Equation of vibration ; Hydrospace noise ; Reliability index ; Underwater blasting |
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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.
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