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Integrating Geophysical and Geotechnical Technologies for Improved Site Assessment of Ports and Harbours
| 题名： | Integrating Geophysical and Geotechnical Technologies for Improved Site Assessment of Ports and Harbours |
| 作者： | Dr Bob WHITELEY |
| 关键词： | Geophysical and Geotechnical Technologies ; Ports and Harbours |
| 摘要： | Population pressures, a new generation of larger vessels and the achievement of waterfront efficiencies with improved technologies is accelerating development in Australian ports and harbours. To more effectively support tender processes and marine civil construction this, in turn, has forced an evolution of site characterisation methodologies aimed at providing more accurate geotechnical models. Modern geotechnical practice for ports and harbours now includes a range of technologies , principally marine seismic reflection, underwater seismic refraction, targeted drilling and seismic tomographic imaging. A case study from Port Kembla demonstrates how underwater seismic refraction may be applied to assist material classification in variable sub-bottom conditions. A further study involving review of Port Hedland dredging campaign carried out in the mid-1980’s demonstrates the consequences of an inaccurate geotechnical model. A third study shows the application of overwater seismic tomography to a tunnel project in Sydney’s Middle Harbour and shows the value of this new technology to near-shore or harbour crossing geotechnical investigation. When these technologies are well integrated, geotechnical risks are substantially reduced for both large and small civil projects in ports and harbours. |
| 总页数： | Proceedings of the 30th PIANC-AIPCN Congress. Sydney Australia. 22-26 Sept. 2002. pp12 |
| 报告类型： | 科技报告 |
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