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논문 기본 정보

자료유형
학술저널
저자정보
심현진 (Seoyeong Engineering co., Ltd., Seoul Korea) 한창연 (Seoyeong Engineering co., Ltd., Seoul Korea) 남현우 (Seoyeong Engineering co., Ltd., Seoul Korea)
저널정보
한국토질및기초기술사회 지반과 기술 지반과 기술 제3권 제3호
발행연도
2006.1
수록면
15 - 22 (8page)

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The optimum blasting pattern to excavate a quarry efficiently and economically can be determined based on the minimum production cost, which is generally estimated according to rock fragmentation. Therefore, it is a critical problem to predict fragment size distribution of blasted rocks over an entire quarry. By comparing various prediction models, it can be ascertained that the result obtained from Kuz-Ram model relatively coincides with that of field measurements. Kuz-Ram model uses the concept of rock factor to signify conditions of rock mass such as block size, rock jointing, strength and others. For the evaluation of total production cost, it is imperative to estimate 3-D spatial distribution of rock factor for the entire quarry. In this study, a sequential indicator simulation technique is adopted for estimation of spatial distribution of rock factor due to its higher reproducibility of spatial variability and distribution models than Kriging methods. Further, this can reduce the uncertainty of predictor using distribution information of sample data. The entire quarry is classified into three types of rock mass and optimum blasting pattern is proposed for each type based on 3-D spatial distribution of rock factor. In addition, plane maps of rock factor distribution for each ground level are provided to estimate production costs for each process and to make a plan for an optimum blasting pattern.

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