石灰石鉱山における穿孔機の適用性の評価

• 島田 英樹

  九州大学工学部資源工学科

• 江口 元

  鹿島建設 (株)

• 松井 紀久男

  九州大学工学部資源工学科

書誌事項

タイトル別名

• Estimation of Applicability of Drilling Machine in Limestone Quarry.
• セッカイセキ コウザン ニ オケル センコウキ ノ テキヨウセイ ノ ヒョウカ

抄録

In Japanese open pit limestone quarries, the drill and blast method using the bench cut system is employed. Since the success of drilling machine is more sensitive, its application should be made after proper evaluation of geological conditions and rock characteristics in order to predict the machine performance and bit consumption and so on. Geological conditions have a significant effect on the performance of drilling machine. Unconfined compressive strength or uncofined tensile strength of intact rock which is used as an index for criterion or prediction is not good because the fragmentation mechanism is not considered well. It is more important to consider the consumed energy value in fragmentation such as the rock impact hardness number (RIHN) than the strength failure value such as the unconfined compresive strength or the unconfined tensile strength for criterion or prediction of machine performance.<BR>From these points of view, this paper discusses the predicting method of the drilling rate and the selecting method of the drilling machine by using the rock impact hardness number, RIHN.

収録刊行物

• 資源と素材

  資源と素材 111 (4), 239-244, 1995

  一般社団法人 資源・素材学会

キーワード

• 石灰石鉱山
• 穿孔機
• 岩石衝撃硬度数 (<I>RIHN</I>)
• 穿孔速度
• 適用性

詳細情報

• CRID: 1390001206016052864
• NII論文ID: 10001658023
• NII書誌ID: AN10062646
• DOI: 10.2473/shigentosozai.111.239
• ISSN: 18806244
• ISSN: 09161740
• NDL書誌ID: 3616620
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3616620
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可