SOME GEOTECHNICAL PROPERTIES OF MINERAL WASTE TAILINGS LAGOONS

The authors discuss the factors affecting the stability of waste heaps and lagoons. Because of the lack of awareness of the physical processes involved in their formation failures have often occurred in tailings lagoons. Due to the intermittent nature of the filling and the process of sedimentation within the lagoon, particles separate into layers. The mechanical properties of these layers are discussed; factors affecting the cross section of lagoons are examined and theoretical predictions of soil strength are compared with measured results. Comparison of vane tests from various sites are made, but because the properties of lagoon deposits are very varied even within a particular industry, these comparisons are of limited value. The lower limit of the strength of clay can be estimated in terms of its stress parameters using a formula proposed by Skempton relating effective vertical stress and cohesion. The possibility of liquefaction must be seriously considered. /TRRL/

  • Availability:
  • Corporate Authors:

    Foundation Publications Limited

    7 Ongar Road
    Brentwood CM15 9AU, Essex,   England 
  • Authors:
    • Hughes, J M
    • Windle, D
  • Publication Date: 1976-1

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 23-28
  • Serial:
    • GROUND ENGINEERING
    • Volume: 9
    • Issue Number: 1
    • Publisher: EMAP CONSTRUCT LIMITED
    • ISSN: 0017-4653

Subject/Index Terms

Filing Info

  • Accession Number: 00137527
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Oct 26 1976 12:00AM