人民长江2025，Vol.56Issue(4)：136-142,7.DOI:10.16232/j.cnki.1001-4179.2025.04.018
高坝大库陡深水域测深装备研究
Research on bathymetric equipment for steep and deep waters in high dams and large reservoirs
摘要
Abstract
Conducting bathymetric surveys in steep and deep waters of high dams and large reservoirs,such as the Three Gor-ges and the lower reaches of Jinsha River,conventional single-beam echo sounders are affected by vessel attitude,time-delay effects,and beam angle effects,leading to deteriorated underwater depth measurement accuracy.To enhance bathymetric accuracy in the steep and deep waters of high dams and large reservoirs,a design scheme for single-beam measurement equipment inte-grated with an inertial navigation system(INS)is proposed.By embedding attitude sensors and applying ultra-wideband(UWB)transducers,the system integrates the attitude sensor with the single-beam transducer into a unified device.This innova-tion addresses attitude compensation and time synchronization issues while effectively mitigating the impact of beam angle effects to a significant extent.Field testing of the bathymetric equipment was conducted in steep and deep waters near the dam areas of the Three Gorges and Wudongde reservoirs.Results demonstrate that the measurements exhibit strong consistency across multiple survey voyages on different cross-sections,with high internal consistency accuracy.Fixed-point tests performed at two bench-mark sites reveal a relative deviation of 0.01％ in water depth measurements and mean elevation errors of 0.11 m and 0.07 m,respectively.The research outcomes comply with the permissible error requirements for bathymetric measurements specified in the Chinese Industry Standard SL 257-2017 Specifications for Waterway Survey.This equipment effectively meets the requirements for hydrological and sediment monitoring in steep and deep waters of high dams and large reservoirs,significantly advancing the technical capabilities for such monitoring tasks.关键词
水文泥沙监测/高坝大库陡深水域/声惯式一体测深装备/姿态传感器/超宽带换能器Key words
hydro-sediment monitoring/steep and deep waters in high dams and large reservoirs/single-beam measurement equipment integrated with inertial navigation system(INS)/attitude sensor/ultra-wideband transducer分类
建筑与水利引用本文复制引用
孙征安,李启涛,孙振勇,陈绪刚,胥洪川..高坝大库陡深水域测深装备研究[J].人民长江,2025,56(4):136-142,7.基金项目
国家重点研发计划项目(2023YFC3209502) （2023YFC3209502）
