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１９９４年７月１９～２５日，由于特殊原因，黄河三门峡水库仅依靠电站坝段的机组及８＃钢管泄流，库水位较高（３１４～３１８ｍ），电站坝段８＃钢管出流中发生了“左侧为清水、右侧为浑水”的奇异异重流现象。认真分析研究此奇异现象，弄清８＃钢管出流中“为何浑清水不是上下层分布、而是左右侧分布？”、“浑清水分布形式是否在进入８＃钢管前已经形成？”、“若已形成，８＃钢管浑清水流程达１００ｍ之多，为何浑清水不在流程发生旋转或掺混？”等问题的原因，对深化水库异重流认识及解决电站排沙问题都具有重要意义。
From July 19 to July 25, 1994, due to special reasons, the Yellow River Sanmenxia Reservoir only relied on the discharge of the unit of the power plant dam and the steel pipe # 8, with high reservoir water level (314 ~ 318m) and outflow of the steel pipe of the No. 8 steel pipe in the power station dam section The “left side of the water, muddy water on the right,” the strange phenomenon of heavy flow. Careful analysis and study of this strange phenomenon, to clarify the outflow of 8 # steel pipe, “why the muddy water is not the upper and lower distribution, but left and right distribution?”, “Muddy water distribution is formed before entering the 8 # pipe?”, " If it has been formed, 8 # steel pipe muddy water up to 100m, why muddy water is not in the process of rotation or blending ?, and other issues, to deepen the reservoir gravity flow awareness and solve sediment discharge problems are of great significance.