Field investigation of blast-induced damage of the sedimentary strata rock mass at PT Kaltim Prima Coal, Indonesia

G. M. Simangunsong, E. Yulianto, S. Kramadibrata, K. Matsui, H. Shimada, S. Kubota, Y. Ogata

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

1 被引用数 (Scopus)

抄録

Five blasting operations at two different pits within PT Kaltim Prima Coal (KPC) were carefully investigated. The areas of interest were Harapan South Pit and Melawan Thiess Pit. The field investigation was carried out to measure the significance of the blast induces fractures within a rock mass. First of all, investigation holes were made and drilled relatively perpendicular with blasting row at near distance behind the last blasting row. To quantitatively determine rock mass fractures, a borehole camera was applied to investigate cracks before and after the blast. A vibration geophone was arranged close to the collar of each investigation hole to monitor peak particle velocity (PPV) of the ground surface. Plotting the PPV as a function of distance divided by cube root or square root of the explosive weight was employed to predict attenuation or decay the PPV. From the data obtained, it was found that the cracks increase proportionally with the PPV.

本文言語英語
ホスト出版物のタイトルExplosion, Shock Wave and Hypervelocity Phenomena in Materials
編集者Shigeru Itoh, K. Hokamoto, Masahiro Fujita
出版社Trans Tech Publications Ltd
ページ175-180
ページ数6
ISBN(印刷版)9780878499502
DOI
出版ステータス出版済み - 1月 1 2004
イベントProceedings of the 1st International Symposium on Explosion, Shock Wave and Hypervelocity Phenomena (ESHP Symposium) - Kumamoto, 日本
継続期間: 3月 15 20043月 17 2004

出版物シリーズ

名前Materials Science Forum
465-466
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

その他

その他Proceedings of the 1st International Symposium on Explosion, Shock Wave and Hypervelocity Phenomena (ESHP Symposium)
国/地域日本
CityKumamoto
Period3/15/043/17/04

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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