江乌航道整治工程水文泥沙原型观测方法与实践  

Implementation method of prototype observation of Jiangwu channel regulation project

作　　者：韩亚民 江木春 HAN Yamin;JIANG Muchun(CCCC Second Harbor Consultants Co.,LTD.,Wuhan 430060,China)

机构地区：[1]中交第二航务工程勘察设计院有限公司,湖北武汉430060

出　　处：《海洋测绘》2023年第4期42-46,共5页Hydrographic Surveying and Charting

摘　　要：为解决长江下游航道整治工程原型观测的问题,以长江下游江心洲至乌江河段航道整治二期工程原型观测为例,结合现场工作实践,采用多种设备和技术方法,包括水位及比降观测、水文断面测量、表面流速流向测量、悬移质和河床质取样及分析等,针对长江下游感潮河段和部分江段流速大、水深深的特点,采取在合理的时间段进行相关原型观测工作,并利用深水底质采样器解决在深水及流速大的江段采样困难问题。实践结果表明:在江乌航道整治工程中采用的水文泥沙原型观测方法,能获取完整详实的原型观测数据,避免成果失真。采用文中的水文泥沙原型观测方法,解决了长江下游感潮河段原型观测问题,为航道整治工程设计及相关专题研究提供了可靠的基础资料。This paper takes the prototype observation of the second-phase waterway regulation project in the Jiangxinzhou-Wujiang section as an example to study the problem of the prototype observation of the waterway regulation project in the lower reaches of the Yangtze River.Combined with field work practice,a variety of equipment and technical methods were used,including water level and gradient observation,hydrological section measurement,surface velocity and flow direction measurement,and sampling and analysis of suspended mass and riverbed mass.In view of the characteristics of high flow velocity and deep water in the tidal reaches and some river sections,relevant prototype observation work is carried out in a reasonable time period,and the deep water bottom sampler is used to solve the difficult problem of sampling in deep water and river sections with high flow velocity.The practical results show that the hydrology and sediment prototype observation method used in the waterway improvement project can obtain complete and detailed prototype observation data and avoid the distortion of the results.The conclusion is that the prototype observation method of hydrology and sediment in this paper is used to solve the prototype observation problem of the tide-sensing reaches of the lower reaches of the Yangtze River.It provides reliable basic data for the design of waterway regulation engineering and related special research.

关 键 词：航道整治 原型观测 比降观测 ADCP走航测量 悬移质取样 河床质取样 感潮河段 

分 类 号：P229.5[天文地球—大地测量学与测量工程]