Study on control of rock fragmentation at limestone quarry

Takashi Sasaoka, Hideki Shimada, Takayuki Sasaki, Masatomo Ichinose, Kikuo Matsui

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

The size distribution of a muck pile depends not on only the blasting standard but also on the mechanical properties, joint system, and crack density of the rock mass. As, the cracks in the rock masses are especially heavily developed at the limestone quarries in Japan, they, along with the joints, have a large impact on the effects of blasting, such as the size of the muck pile. Therefore, if the joint system and/or crack density in a rock mass can be determined and quantitatively evaluated, the blasting operation can be conducted more effectively, efficiently and safely. However, guidelines for designing appropriate blasting standards based on the rock mass conditions have not yet been scientifically developed. Therefore, blasting tests were conducted on different mines and faces, under different geological conditions and blasting standards, in order to determine the impacts of each factor on the effects of blasting. Summarized the results of a series of blasting tests and described the impacts of geological conditions on the size of the muck pile produced by blast.

本文言語英語
ページ(範囲)365-368
ページ数4
ジャーナルJournal of Coal Science and Engineering
14
3
DOI
出版ステータス出版済み - 9 2008

All Science Journal Classification (ASJC) codes

  • 地盤工学および土木地質学
  • エネルギー工学および電力技術

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