多波束扫测数据的土方计算方法对比研究  

Comparative Study on Earthwork Calculation Methods Based on Multi-beam Scanning Data

作　　者：郭志勇 亢保军[1] 王頔[1] 别伟平[1] Guo Zhiyong;Kang Baojun;Wang Di;Bie Weiping(CCCC First Harbor Consultants Co.,Ltd.,Tianjin 300220,China)

机构地区：[1]中交第一航务工程勘察设计院有限公司,天津300220

出　　处：《港工技术》2021年第4期21-24,共4页Port Engineering Technology

摘　　要：土方计算是设计、施工的一项重要内容。以多波束测量方法获得的水深数据具有精度高、全覆盖等优点。本文使用ArcGIS的DEM土方计算法、南方CASS的DTM三角网土方计算法、南方CASS的方格网土方计算法,分别对多波束数据进行回淤土方量计算。结果表明,各方法都适用于多波束数据的土方计算,并且ArcGIS的DEM土方计算法获得的精度最高和计算时间最短。因此,本工程使用ArcGIS的DEM法对多波束数据进行土方计算,其他方法作为参考和比较。Earthwork calculation is an important part of design and construction.The bathymetric data obtained by using multi-beam survey method possess high accuracy and cover the entire survey area.ArcGIS DEM method,Southern CASS DTM triangulation method and Southern CASS grid method are applied respectively in the calculation of earthwork amount based on multi-beam scanning data.The results show that all above methods are suitable for the earthwork calculation of multi-beam data,and the application of ArcGIS DEM method achieves the highest accuracy and the shortest calculation time.Therefore,ArcGIS DEM method is used in this project,and other methods serve as a reference.

关 键 词：多波束 土方计算 DEM DTM 方格网法 

分 类 号：U615.4[交通运输工程—船舶及航道工程]