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首页> 外文会议>International Yellow River Forum on Keeping Healthy Life of the River vol.4; 20051021-24; Zhengzhou(CN) >Study on Density Current through Xiaolangdi Reservoir and its Application
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Study on Density Current through Xiaolangdi Reservoir and its Application

机译：小浪底水库水流密度研究及其应用

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摘要

The paper is intended to investigate the laws governing the density current and show the application of the laws in Xiaolangdi reservoir on the stem Yellow River. Sediment brought by the feeding flow to the reservoir, which is on the early stage of impoundment, can be only released out of it through density current. Using the data of density current measured in Xiaolangdi reservoir, and referring to the research results obtained in physical models, the authors investigated the basic laws for genesis, movement and sediment releasing of density current, and obtained the critical conditions for sediment release by density current, and formulas for resistance, sediment carrying capacity, travel time, and sediment release of density current. Prior to the field experiments of flow - sediment regulation, which were conducted in 2002 ～ 2004, the authors applied the results to design regulation schemes for operating Xiaolangdi dam and other dams. Following the schemes, the field experiments were implemented smoothly. The field experiments not only regulated the formed — naturally density current in a proper way, but created density current as wanted and released the sediment by the density current successfully as well, therefore realizing the objectives like sedimentation reduction, optimizing the rebalance between flow and sediment released.
机译：本文旨在研究控制密度流的规律，并说明该规律在黄河干流小浪底水库的应用。在蓄水初期，由进料流带入水库的沉积物只能通过密度流从水库中释放出来。利用小浪底水库测得的密度电流数据，并参考物理模型获得的研究结果，研究了密度电流产生，运动和沉积物释放的基本规律，并得出了利用密度电流释放沉积物的临界条件。 ，以及阻力，泥沙承载力，传播时间和密度电流泥沙释放的公式。在2002〜2004年进行流-沙调节的野外试验之前，作者将研究结果应用到小浪底大坝和其他大坝的运行调节方案设计中。按照这些方案，现场实验得以顺利进行。野外实验不仅以适当的方式调节了自然形成的密度流，而且还可以根据需要创建密度流，并通过密度流成功地释放了沉积物，从而实现了减少沉降，优化流沙平衡的目标。已发布。

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