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COCOS (KEELING) ISLANDS LAGOON SHIPPING PASSAGE REALIGNMENT
| 题名： | COCOS (KEELING) ISLANDS LAGOON SHIPPING PASSAGE REALIGNMENT |
| 作者： | Graham GREENACRE; Fraser ROBSON; Peter SEMAN |
| 关键词： | SHIPPING ; PASSAGE; REALIGNMENT |
| 摘要： | At Cocos (Keeling) Islands in the Indian Ocean, the existing shipping passage into the Lagoon required realignment to reduce the risks to shipping and ultimately the environment. The main user of the channel is the fuel tanker that brings bulk supplies of diesel to the islands to run the electricity generators. The existing passage is marked with nine lit beacons and ships require a pilot to navigate down the 5.0 kilometre route from the passage entrance. It comprises a series of continuous curves that are difficult to negotiate, and the limiting section of the passage relies on a tidal component to ensure a suitable under keel clearance. The new shipping passage alignment will be a significant improvement on the current situation by providing a simpler, straighter route which will optimise navigation safety for vessels entering or leaving the Lagoon, and an increased clear depth to 4.5m below Chart Datum. The main focus of the paper is the environmental impact issues relating to removal of coral outcrops and installation of new navigation aids to meet the current and long-term needs of the Islands. The scope of work for the project involved the repair, removal or replacement of navigation aids, and removal or permanent marking of coral outcrops considered a danger to shipping vessels. This project was referred to the Commonwealth of Australia’s environmental approval agency, Environment Australia, and approval was obtained following the environmental assessment process. Construction commenced in late April 2001 when periods of calm weather were most likely to be experienced. |
| 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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