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Case Study on Vibration Monitoring of Area Adjacent to Blast Hole  

Lee, Hyo (SK건설)
Won, Yeon-Ho (원앤비기술사사무소)
Kim, Jin-Soo (원화건설)
Ju, Young-Og (원하티앤알비)
Publication Information
Explosives and Blasting / v.24, no.2, 2006 , pp. 83-91 More about this Journal
Abstract
Over the past few decades, blasting vibration has been mainly analysed to understand characteristics of far field vibration in the area comparatively far from blast hole in the respect of proving limit of building damage. However, over the last few years, many works have been carried out to estimate damage within the rock adjacent to a blast hole, especially for the Purpose of over break in tunnel blasting and rock slope stability There are several methods to estimate rock damage, but method of using blast vibration has been mostly used to estimate rock damage. Formerly, to estimate rock damage, method of expecting near field vibration using the characteristics of far field vibration had mainly used but nowadays, it is practically possible to measure near field vibration according to development of monitoring system. A few repels relating to this have been studied aboard, but very little work has been conducted in our country because of difficulty of monitoring and choice of monitoring system. Accordingly, in this Paper, measurements of near field vibration were conducted and wave forms were analyzed and some problems were investigated in measuring system.
Keywords
far field vibration; near field vibration; rock damage; blast hole; monitoring system;
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  • Reference
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