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Innovative Navigation Design
| 题名： | Innovative Navigation Design |
| 作者： | John D. CLARKSON, P.E.; Jos VAN RIJEN |
| 关键词： | Innovative Navigation Design |
| 摘要： | As the United States Army Corps of Engineers moves from building more of its Civil Works infrastructure in-the-dry [with a cofferdam] to building in-the-wet [float-in or lift-in], we would like to present our innovative design and construction techniques. This design approach has evolved from the overall study of the Ohio River titled “Ohio River Main Stem Study” [ORMSS]. In this study, the Greenup Locks and Dam were identified as in need of additional traffic capacity. The Greenup lock extension will be the prototype project for this study. To gain this additional traffic capacity the existing 600-foot [182.9 m] lock will be extended to match the adjacent 1200-foot [365.8 m] lock. We are developing new technology to float-in/lift-in lock wall monoliths and structures. This speeds construction, which lessens the impact to the towing industry when expanding outdated projects. We have gained this expertise in consultations with world experts from North America and Europe. New mooring cells will be built as part of the extension project. These mooring cells present an opportunity to demonstrate the lift-in construction techniques developed for the lock extension. Our techniques utilize various methods including foundation preparation, underwater self-leveling grouts, quick assembly towers, graving yards and the use of grout bags to seal precast segments in the wet. The selected concept uses a central precast concrete tower supported by precast face panels and filled with tremie concrete. For the miter gate bay section, both the float-in and the lift-in techniques have been analyzed to determine which would be the preferred option for this complex section of the lock extension. Both methods are considered feasible for the Greenup site. These methods allow for much quicker construction and minimize impact to existing navigation when doing lock extensions adjacent to shipping lanes. Without these techniques we would have to build a new, more expensive lock landward of the existing locks to avoid interruptions to navigation. These innovative design and construction techniques should be considered whenever expanding existing projects such as the Greenup locks. |
| 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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