Perpetual treatment of acid water from coal waste dumps or from embankments constructed with coal refuse may be uneconomical. The only practical and economical method available for controlling this pollution problem appears to be the isolation of acid-generating ingredients such as pyrite from the other reagents, oxygen and water. Accordingly, controlling the permeability and air content of mine waste has become one of the most important measures in achieving this purpose. This paper focuses on the permeability of coal refuse. Data from both foreign and domestic sources were used to determine the relationship between the permeability found in the laboratory and the various index properties and to assess the effect of the reduction in void ratio caused by compaction, or other means, on the permeability of coal refuse. Traditional relationships between permeability and void ratio of soils were examined for coal refuse. Better regression models between permeability and other properties for both coarse and fine refuse were developed by using stepwise regression analysis. Some established relationships for soils were found to be unsuitable for coal refuse. Good models were developed for both coarse and fine refuse, despite the fact that the data obtained for the analyses were widely scattered in range.

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 49-52
  • Monograph Title: Multiple aspects of soil mechanics
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00178224
  • Record Type: Publication
  • ISBN: 0309026695
  • Files: TRIS, TRB
  • Created Date: Jul 19 1978 12:00AM