STABILITY OF BULK MINERAL CARGOES

One of the hazards of transportation of damp mineral concentrates or similar fine-grained cargoes is the possibility of the cargo shifting. This is associated with moisture contents in excess of some critical limit in relation to the prevailing conditions. In this situation the stimulus of the ship's motion, particularly in heavy seas, may cause what appears to be a relatively dry granular material to develop into an unstable fluid mass. This may result in a shift of cargo, as a result of which the vessel may progressively reach a dangerous heel and eventually capsize. A number of casualties have been attributed to this in recent years. The phenomenon of liquefaction, methods of testing and the behavior of materials under simulated shipboard conditions are considered.

• Corporate Authors:

  Institution of Mining & Metallurgy

  44 Portland Place
  London W1N 4BR,   England 
• Authors:
  • Green, P V
  • Hughes, T H
• Publication Date: 1977-10

Media Info

• Features: References;
• Pagination: n.p.
• Serial:
  • Institution of Mining & Metallurgy-Trans, Sect A
  • Volume: 86
  • Publisher: Institution of Mining & Metallurgy

Subject/Index Terms

• TRT Terms: Angle of repose; Bulk cargo; Bulk cargo handling; Capsizing; Cargo handling; Ore carriers; Ores; Ships; Stability (Mechanics)
• Old TRIS Terms: Bulk ore; Cargo stability; Intact stability
• Subject Areas: Freight Transportation; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00174255
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: May 31 1978 12:00AM