Geotechnical site investigations for dredging works - Port of Townsville

Jaditager, M., and Sivakugan, S. (2016) Geotechnical site investigations for dredging works - Port of Townsville. In: Proceedings of the 5th International Conference on Geotechnical and Geophysical Site Characterisation (2) pp. 987-990. From: 5th International Conference on Geotechnical and Geophysical Site Characterisation, 5-9 September 2016, Gold Coast, QLD, Australia.

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In order to accommodate larger vessels with greater draughts, the Port of Townsville has conducted a major capital dredging campaign in 1993 to deepen its access channels and inner harbour from -10.7 m to -12.0 m Lowest Astronomical Tide. To determine the subsurface conditions of the dredging project site, the port has conducted offshore geotechnical site investigations. The factual information obtained on soil stratigraphy, classifications, and geotechnical properties has guided dredgeability assessment, cost estimates and dredging operations planning. Subsequent to provisions of guidance to design and tendering stages, the geotechnical site information reduced dredging project risk levels and contributed to a successful project execution without major delays or cost overruns for unforeseen ground conditions. This paper describes the geotechnical site characterisation for dredging works that were undertaken by the Port of Townsville, emphasising on site geological setting, scope of the investigations, field works, laboratory testing, and the obtained results.

Item ID: 47799
Item Type: Conference Item (Research - E1)
ISBN: 978-0-9946261-2-7
Keywords: dredging, geotechnical site investigations, soil properties
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Funders: Australian Research Council
Date Deposited: 22 Mar 2017 01:33
FoR Codes: 40 ENGINEERING > 4005 Civil engineering > 400502 Civil geotechnical engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8701 Construction Planning > 870101 Civil Construction Planning @ 30%
87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 70%
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