两种声呐系统应用于沉井测量的对比分析  

Comparative analysis of two sonar systems used in caisson measurement

作　　者：王嘉伟 尤相骏 杨朝禹 王张江尧 沈蔚[2] WANG Jiawei;YOU Xiangjun;YANG Chaoyu;WANG Zhangjiangyao;SHEN Wei(Zhejiang Huazhan Research and Design Institute Co.,Ltd.,Ningbo 315010,China;Shanghai Ocean University,Shanghai 201306,China)

机构地区：[1]浙江华展研究设计院股份有限公司,浙江宁波315010 [2]上海海洋大学,上海201306

出　　处：《测绘通报》2025年第1期175-179,共5页Bulletin of Surveying and Mapping

基　　金：宁波市“科创甬江2035”关键技术突破计划(2024Z263)。

摘　　要：现代城市重大工程勘测和地下排水管网调查中,大型污水沉井测量是一项重要且有困难的工作。传统的蛙人下井探摸方式,因其危险系数高、测量误差较大而逐渐被高精度声呐探测系统代替。为实现高精度、高效率的大型污水沉井测量,本文开发了一套多波束声呐沉井测量系统,并将其与双轴扫描声呐测量系统从多个角度对比分析。试验结果表明,多波束声呐测量系统重量轻、体积小、精度高、外业测量效率高、获得点云密度高,能够快速获取蓄水沉井的井室和进出水口三维形态。随着技术的进步,声呐测量系统将成为管道、沉井、空洞区等城市地下蓄水空间测量的有效工具。In the survey of major modern urban projects and underground drainage network,the measurement of large sewage caissons is an important but difficult task.The traditional method of frogmen going down to the well to explore has been gradually replaced by high-precision sonar detection systems due to its high risk factor and large measurement errors.In order to achieve highprecision and highefficiency measurement of large sewage caissons,this paper developes a multi-beam sonar caisson measurement system,and compares it with the dual-axis scanning sonar measurement system from multiple angles.The experimental results show that the multi-beam sonar measurement system is light in weight,small in size,high in precision,high in field measurement efficiency,and high in point cloud density.It can quickly obtain the three-dimensional shape of the well chamber and inlet and outlet of the water storage caisson.With the advancement of technology,the sonar measurement system will become an effective tool for measuring urban underground water storage spaces such as pipelines,caissons,and hollow areas.

关 键 词：沉井测量 多波束声呐 双轴扫描声呐 三维点云 精度 效率 

分 类 号：P258[天文地球—测绘科学与技术]