IN SITU NUCLEAR DENSITY MEASUREMENTS IN DREDGING PRACITCE AND CONTROL

Dredging practice and efficiency is influenced by sea bed density. In situ measurements of spoil density should be used in planning capital dredging programmes, guiding and monitoring maintenance dredging and in qualifying descriptions of sea-bed altitude and its relevant changes. Nuclear density gauges have been used on land for some time but only recently in the marine environment. Differing requirements of spatial sampling and accuracy can be satisified by using two types of nuclear densimeter, the backscatter probe or the transmission probe. The laboratory performance of the backscatter probe has been examined and compared with the behaviour predicted by a simple mode. Some recommendations are made concerning applications of each probe, the interpretation of density structures and deployment criteria.

  • Supplemental Notes:
    • Paper B-3 from BHRA Fluid Engineering Symposium, University of Kent, Canterbury, England.
  • Corporate Authors:

    British Hydromechanics Research Association

    Cranfield MK43 0AJ, Bedfordshire,   England 
  • Authors:
    • Parker, W R
    • SILLS, G C
    • Paske, REA
    • Harwell, AERE
  • Publication Date: 1975-9

Subject/Index Terms

Filing Info

  • Accession Number: 00128419
  • Record Type: Publication
  • Source Agency: British Hydrodynamics Research Association
  • Files: TRIS
  • Created Date: Jan 14 1976 12:00AM