大型耙吸式挖泥船精挖施工工艺在湄洲湾航道工程中的应用

为解决大型自航耙吸式挖泥船在航道疏浚施工、特别是在跨度较大的深水航道疏浚施工中存在的严重超挖废方问题,依托大型自航耙吸式挖泥船"长鲸6"在湄洲湾30万吨级主航道疏浚施工中采取RTK无验潮、多波速测量和分层定深开挖等技术,对潮位数据、动态分层定深和测量成果等进行分析,对潮位观测站数据与施工船舶RTK无验潮实时数据进行对比纠正,探讨自航耙吸式挖泥船挖深精确控制施工技术及管理措施。

Application of precise dredging construction technique of large trailing suction hopper dredger in Meizhou bay waterway dredging engineering

To solve the problem of serious extra-dredging by the large self-propelled trailing suction hopper dredger in channel dredging construction,especially in the large-span deepwater channel dredging construction,we adopt RTK non-tide technology,multi-beam sounding system and layered excavation technology in the dredging engineering of 300 000 DWT main channel of Meizhou bay by the large self-propelled trailing suction dredger the Long Whale 6 to explore the technologies in precise control of dredging depth as well as the management measures by analyzing the tidal data,dynamic hierarchies and measurement results,especially by comparing and calibrating the tidal observation station data with GPS RTK tidal observation data.