RTK三维多波束水深测量在港珠澳大桥岛隧工程中的应用

摘要

During the excavation and siltation monitoring of the deepwater foundation trench for the island and tunnel project of Hongkong-Zhuhai-Macao Bridge, bathymetric survey demands higher and higher accuracy and the conventional tide multi-beam bathymetry is unable to meet the accuracy demand. The set up and principle of the RTK three-dimensional multi-beam bathymetry are described in the paper and the advantage of RTK three-dimensional multi-beam bathymetry is analyzed based on an example, which may provide reference for bathymetric survey of deepwater foundation trenches.%在港珠澳大桥岛隧工程的深基槽开挖和回淤监测过程中，水深测量精度要求越来越高，常规验潮多波束测量已经无法满足测量精度。文中介绍了RTK三维多波束水深测量系统的组成及测量的基本原理，并以实例分析了RTK三维多波束水深测量的优势，可为深海基槽水深测量提供参考。