Mathematical Plan Model for Longwall Mining in Consideration of Coal-Grade Distribution a Coal Seam.

• IMAI Tadao

  Mining College, Akita Univ., Akita 010

• HIRAMATSU Akio

  Kushiro Colliery, Taiheiyo Coal Mining Co., Ltd., Kushiro 085

• ABIKO Hirotsune

  Tsukumi Mine, Nittetsu Mining Co., Ltd., Tsukumi 879–24

Bibliographic Information

Other Title

• 炭層の品位分布を考慮した長壁式採炭に対する数理計画モデル
• タンソウ ノ ヒンイ ブンプ オ コウリョシタ チョウヘキシキ サイタン ニ

Abstract

The purpose of the present study was to develop a mathematical model for effective operation of a longwall working face in an underground coal mine. The model can evaluate the relationship between operating efficiency and working height of the face in a coal seam. The results show that, contrary to a common thought, the working height of the face must be 20-30 % lower than the thickness of the coal seam. As a consequence, low-grade coal near the bed and roof rock remains in the coal seam. The results of this model enable effective operation of the working face and maximum profit in a mine.

Journal

• Shigen-to-Sozai

  Shigen-to-Sozai 114 (2), 101-105, 1998

  The Mining and Materials Processing Institute of Japan

Keywords

• Coal Seam
• Coal Grade
• Longwall Mining
• Working Height Elevation
• Operations Research

Details

• CRID: 1390282680993826560
• NII Article ID: 10002467132
• NII Book ID: AN10062646
• DOI: 10.2473/shigentosozai.114.101
• ISSN: 18806244
• ISSN: 09161740
• NDL BIB ID: 4424597
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4424597
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed