河道断面分析是河床演变分析的基础。
River section analysis is the foundation of riverbed evolution analysis.
变动回水区河床演变特性。
Evolution characteristics of riverbed in fluctuating backwater area.
河道DEM的建立是河道整治、河床演变的基础。
The establishment of riverway DEM is the basis of riverway analysis and riverbed change.
本文主要研究基于GIS的河床演变断面分析方法体系。
The paper is to study the fluvial process based on GIS by cross-section methodology.
三十年来我国河流地貌的研究主要为河谷地貌、河床演变和河口三角洲。
Research in fluvial geomorphology in China during the past 30 years was mainly along the lines of valley geomorphology, channel geomorphology, estuaries and deltas.
河道主槽两侧修建的生产堤影响滩槽泥沙横向交换，对河床演变带来很大影响。
The productive embankments on the watercourse bottomland disturb the water-sediment lateral exchange between bottomland and main flume, which have great influence on the riverbed evolution.
根据对水文泥沙条件及河床演变的分析，选择南港北槽开辟深水航道是合理的。
Based on local hydrological and sediment data and river bed processes analysis, it is reasonable to select the North passage of South branch as the future deep water channel.
按河流演变的自然规律，黄河已达到其河床演变的临界值，很可能会再次改道。
In the natural river succession, the Yellow river course is in its critical situation and will probably change again.
并且以河型转化趋势预测为例，对地貌临界在河床演变中的应用作了进一步的探讨。
Taking the changing tendency forecast of the channel patterns as an example, we have further discussed the application of geomorphic thresholds to the channel process in the Lower y.
并且以河型转化趋势预测为例，对地貌临界在河床演变中的应用作了进一步的探讨。
Taking the changing tendency forecast of the channel patterns as an example, we have further discussed the application of geomorphic thresholds to the channel process in the Lower Yellow River.
冲积河流的自我调整作用所遵循的规律，目前在河床演变学中比较常用的是极值假说。
The extreme hypotheses is common law followed the self-adjusting mechanism of alluvial channels in riverbed evolution presently.
塔里木河位于塔克拉玛干沙漠，其河床演变和河道整治对保护塔里木河具有重要的意义。
Tarim river lies in Takilamakan desert, so studies on riverbed evolvement process and channel regulation have significance for the river protection.
介绍了泥沙交换和河床粗化计算模拟的物理图案和长系列河床演变数学模型的研究方法。
The methods of simulating the physical patterns of sediment exchange and bed coarsening and establishing long series river-bed sediment accumulation mathematical model were also given.
泥沙研究主要是认识水流中的泥沙运动规律、河床演变规律，进而解决水利工程中的泥沙问题。
To resolve the sediment problems in the hydraulic engineering, sediment research concerns on realizing the rule of sediment movement and fluvial processes.
传统的实测资料分析法存在分析效果差、效率低的缺陷，不能充分利用河道测图提取河床演变信息。
However, the traditional analysis of data is inefficient which can not pick up the fluvial process information fully from the channel data.
在数字地形的基础上可开发各种河道信息应用系统，如冲淤分析、河床演变、工程规划、灾情评估等。
Based digital Terran information, river information application systems would be developed, such as erosion-deposition analysis, fluvial process, engineering planning and evaluation etc.
冰期水位计算是冰水力学、冰水文学的重要内容，对于防治、预报凌汛乃至研究冰期河床演变均具有重要的作用。
It is an important content to calculate water level for ice hydraulics and ice hydrology and it has important effected on preventing and forecasting ice flood and bed evolution.
总结出冰塞河段的河床演变特点与冰塞演变的相互关系，得出了河床冲淤及水内冰堆积计算的经验关系式及河床冲淤平衡的临界水力参数。
The relationship between the particular features of scouring and deposition of riverbed and evolution of ice jam in He-qu Reach has been obtained.
文章在河床演变资料分析的基础上，采取“人工变形”预测与大范围动床模型试验预测等手段研究了世纪丘围涂工程实施后堤外高滩的变化。
The paper studies the change of tideland after the century inning by method of "artificial transformation" forecast and moveable bed model based on the analysis of the bed evolution data.
科学合理规划采砂方案，顺应河床演变趋势，将整治河道与采砂疏浚河道有机地结合起来，可除害兴利，在一定时期内和一定程度上改善航道条件。
Planning sand extraction scheme in accordance with potential channel change and combining channel modification with sand extraction can improve navigation condition to a certain extent.
在长期系统研究的基础上，分析对比了长江口的水流动力、泥沙运动和河床演变等各种条件，选择了北槽作为长江口深水航道先予治理，确立了符合长江口实际情况的治理原则。
According to the analyses, the North Channel is selution as the main deep-water navigation channel to the sea and is to be pre-trained, and the training principle of the Yangtze Estuary is determined.
先后完成的黄河花园口至东坝头河段1988年中水丰沙型洪水及“92．8”高含沙洪水验证试验结果表明，采用本文提出的模型相似律进行模型设计，模型水流运动、泥沙运动及河床演变规律，均与原型相似。
The test results of this model for the floods of 1988 and 1992 show that the flow pattern, the sediment movement and the channel deformation all conform very well with the field data of these floods.
河床河岸地质结构对河流地质作用的制约主导着河道演变的趋势。
The restraint of geologic structure of river bed and bank on the rivers geologic action controls the river evolution trend.
通过对河道演变原因及河床形态的分析，得出松花江依兰—佳木斯江段河道演变的特点。
This paper presents the river course evolution of Yilan to Jiamusi reach through analyzing evoluting reason and river bed formation.
研究表明，坝区水流结构与河势演变后形成的河床形态基本相对应。
Its shown that the flow structure in the dam area are basically corresponding with the bed configuration after evolution of the river situation.
利用常规资料与多时相卫星遥感图象，分析了黄河上游干流水库投入运用后内蒙河段河床的冲淤演变及平面形态变化。
This paper examines the erosion and accretion evolution based on sea charts, combined with hydrodynamics and sediments, as well as channel evolution of the Changjiang estuary.
利用常规资料与多时相卫星遥感图象，分析了黄河上游干流水库投入运用后内蒙河段河床的冲淤演变及平面形态变化。
This paper examines the erosion and accretion evolution based on sea charts, combined with hydrodynamics and sediments, as well as channel evolution of the Changjiang estuary.
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