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A Study on the Characteristics of Blasting Vibration by Superposition Modeling  

Kang, Choo-Won (조선대학교 자원공학과)
Kim, Seung-Hyun (조선대학교 일반대학원 자원공학과)
Park, Hyun-Sik (조선대학교 일반대학원 자원공학과)
Publication Information
Tunnel and Underground Space / v.16, no.4, 2006 , pp. 326-333 More about this Journal
Abstract
In this study, the vibration waveform of the single hole which is not interfered from the different blasting holes is separated, the each dominant frequency which is determinated through the Fast Fourier Transform(FFT) is measured. Also the separation waveform executed a superposition modeling which changes to delay time from 1ms to 80 ms in 1ms interval and controls the number of blasting holes from 2 holes to 15 holes in order to investigate the effect of PPV according to the duration time of the vibration and the number of blasting holes. As a result of analysis, the longer the duration time of the vibration, the longer the delay time which is not interfered from the different blasting holes and the effect regarding the number of blasting holes from inside identical delay time did not appear a lot.
Keywords
Superposition modeling; Dominant frequency; Blasting vibration; 8 ms Criterion;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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