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Navigation in muddy areas: establishing the navigable depth in the port of Zeebrugge
Van Craenenbroeck, K.; Vantorre, M. (1991). Navigation in muddy areas: establishing the navigable depth in the port of Zeebrugge, in: Proceedings of the CEDA-PIANC Conference (incorporating CEDA Dredging Days), 13-14 November 1991, Amsterdam: Accessible Harbours. pp. 1-16
In: (1991). Proceedings of the CEDA-PIANC Conference (incorporating CEDA Dredging Days), 13-14 November 1991, Amsterdam: Accessible Harbours. Central Dredging Association: Delft, meer
Is gerelateerd aan:
Van Craenenbroeck, K.; Vantorre, M. (1992). Navigation in muddy areas: establishing the navigable depth in the port of Zeebrugge. Terra et Aqua 47: 3-12, meer

Beschikbaar in  Auteurs 
Documenttype: Congresbijdrage

Trefwoorden
    Dimensions > Depth > Water depth
    Nautical bottom
    Navigation
    Sediments > Clastics > Mud > Fluid mud
    Vessels
    Water > Shallow water
    ANE, België, Brugge, Haven van Zeebrugge [Marine Regions]
    Marien

Auteurs  Top 
  • Van Craenenbroeck, K.
  • Vantorre, M., meer

Abstract
    The navigable depth in Zeebrugge, which is actually situated at the 1.15 tm-3 density level, was established during an extensive research programme, which included:
    - laboratory testing of sediment properties;
    - in-situ measurements of sediment properties;
    - full scale trials with a trailing suction hopper dredger;
    - small scale tests modelling the full scale trials and systematic ship model test series.

    The paper contains a short desc ription of the laboratory tests, including conventional and newly developed tests for the determination of the structu ral behaviour of the mud, such as rotoviscometry, and Controlled Stress Rheometry.

    Further, a very short description is given of the equipment developed for the in-situ measurement of sediment properties, such as the towed dens ity gauge Navitracker and the rheometric profiler Rheometer.

    More attention is paid to the analysis of data recorded during full scale trials with the trailing suction hopper dredger Vlaanderen XVIII. Acceleration, deceleration, and steady-state phenomena observed in the presence of fluid mud are described. These tests are backed up and placed in a more general framework by model tests, the results of which are also discussed more extensively.

    The implementation of the results obtained during the research programme resulted in the production of a nautical chart, which is a combined echosoundingdensity chart, representing:
    - the depth of the 210 kHz echosounder in cases where the mud is absent;
    - the depth of the 1.15 tm-3 density level in muddy areas, this level being a safe criterion for the navigable depth in Zeebrugge.

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