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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) >Effects of Combined Operation of Dams on Sedimentation Control in the Lower Yellow River
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Effects of Combined Operation of Dams on Sedimentation Control in the Lower Yellow River

机译：大坝联合作业对黄河下游泥沙控制的影响。

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摘要

The main problem existing in the Yellow River is the excessive sediment supply and relative insufficient runoff, which results in severe sedimentation in the Lower Yellow River and the formation of " perched river". The situation of flood control becomes more serious. How to reduce the deposition becomes one of the main objectives in regulating the Yellow River. At present, building large hydro - project is an effective and feasible measure to reduce deposition. To better understand the sedimentation processes, sedimentation reduction efficiency and non - deposition period, this paper presents numerical simulation and analysis of 18 options for the sedimentation processes and developing trend in the are lower Yellow River for conditions such as sole reservoir operation, two - reservoir combined operation, and three - reservoir combined operation. In addition, based on the observed data since the operation of Sanmenxia Reservoir and the simulation results, the implicit mechanism between large hydro - project operation and lower channel evolution is analyzed. The relationship between the sedimentation in the lower Yellow River and the flow - sediment condition released from Xiaolangdi Reservoir, as well as the critical equilibrium of sedimentation, are established, which provide a scientific basis for reducing deposition effectively by optimizing the operation of hydro - project.
机译：黄河存在的主要问题是过多的泥沙供应和相对不足的径流，这导致黄河下游严重的泥沙淤积和“栖息河”的形成。防洪形势更加严峻。如何减少泥沙淤积成为黄河整治的主要目标之一。目前，建设大型水利工程是减少沉积物的有效可行的措施。为了更好地了解沉积过程，减淤效率和非沉积期，本文对黄河下游在单一水库，两水库等条件下的18种沉积过程和发展趋势进行了数值模拟和分析。联合作业，与三水库联合作业。此外，根据三门峡水库运行以来的观测资料和模拟结果，分析了大型水利工程运行与下游河道演变之间的隐性机理。建立了黄河下游的泥沙与小浪底水库释放的泥沙条件，以及泥沙的临界平衡之间的关系，为通过优化水利工程的运行有效减少泥沙提供科学依据。 。

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