horseshoe bend

There exists about 2 km wide, wandering riverbed in the diversion reach of Najin hydroelectric power station on Lasha river.

拉萨河纳金电站具有宽约 2km的游荡型河床 ,因库区泥沙淤积严重 ,电站发电、水库防洪安全日益受到威胁。

There are a great number of brooks and small lakes in our country,some of which are withering away,thus harmfulness on ecological environment is caused.

我国小型河湖数量众多 ,其中大部分正逐渐走向消亡 ,由此而带来了诸多生态环境危害 ,这一现象还未引起人们足够的重视。

This paper discusses the V-type river section impact on seepage of earth Dam and adopts two-dimensional seepage model with considering the influence of V-type river valley to establish basic equation on seepage of earth Dam.

研究了V型河道断面对土坝渗流的影响,采用二维渗流模型并考虑V型河谷的影响,建立了土坝渗流基本方程,给出了相应的MATLAB解法。

Research on the suspended sediment simulating method in typical reach;

典型河段悬移质泥沙模拟方法研究

Difference of Hydrodynamics and Sediment Characters at Typical Reaches & Analysis to Factors in the Yangtze Estuary;

长江河口典型河段水动力、泥沙特征及影响因素分析

The system can be widely used for graphic display of hydraulic factors of other large-scale networks.

该系统可推广应用于其他大型河网的水力要素的图形显示 。

With the case of The First Crossing of Phase Ⅱ Project in Zhuhai-Zhongshan gas transportation pipeline,the paper expounds the main working contents and methods of soil and rock exploration for crossing large river with directional drilling,analyzes the project design,problems in rock and soil engineering and the countermeasure.

以"世界第一穿"——珠海—中山天然气管道二期工程的磨刀门水道穿越岩土工程勘察为例,论述了定向钻进穿越大型河流的岩土工程勘察的主要工作内容和方法,分析评价了磨刀门水道穿越工程设计及施工过程中存在的诸如场地土层松软及交互层多变等岩土工程问题及相应的对策,同时也指明了岩土工程勘察在长输管道设计及施工中的重要性。