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作者简介陈孟荣男高级工程师副总工程师主要从事水利工程研究与管理Emailnbcmrcom
基金项目国家自然科学青年基金项目编号
文章编号
黄 金 埠 电 厂 一 期 工 程 取 水 河 段 泥 沙 模 型 试 验
陈孟荣
彭杨
宁波市水利水电规划设计研究院浙江 宁波
华北电力大学新能源与可再生能源北京市重点实验室北京
摘要黄金埠电厂的补给水源为信江取水方式为岸边开敞式无坝取水采用动床物理模型试验对黄金埠电厂补
给水取水口局部区域的水流泥沙运动及地形冲淤规律进行研究在确保电厂取水能力的前提下预测了可能的冲
淤程度并在此基础上对取水泵房挡沙坎高程进行了优化试验结果表明拟建取水泵房进水口底坎接近枯水主槽
河底 岸边贴流状况良好且取水口前的断面基本没有冲淤变化取水泵房的选址和设计合适泵房取水流量不会
影响河道枯水期通航将泵房挡沙坎高程抬高 m 能够最大限度地避免取水口淤积有利于电厂取水口的安全
可靠运行
关键词
黄金埠电厂动床物理模型取水口泥沙冲淤取水安全性
中图分类号
TV TV
文献标志码
A
Sediment model tests on water intake reach of Huangjinbu power plant
CHEN Mengrong
PENG Yang
Ningbo Municipal Planning Design and Research Institute of Water Resources and Hydropower
Ningbo China The New and Renewable Energy of Beijing Key Laboratory North China
Electric Power University Beijing China
Abstract The first stage of Huangjinbu power plant is designed to take water from Xinjiang RiverThe mobilebed
physical model for the intake reach has been builtBased on model tests we study the local water and sediment
transport the erosion and siltation of the riverbed at water intakes for water recharge to the power plantThe degree
of erosion and siltation that might occur is predicted on the premise to ensure the capacity of waterintaking of the
power plant and the original dashboard elevation of water pump room is optimizedTests show that the site selec
tion and design of water intake is suitable because the intake bottom is near to the main river channel in low water
and the crosssection in front of intake has less sedimentationThe water draw rate has no effect on navigation in
low water periodRaising the elevation of dashboard for m can reduce the erosion and siltation to the greatest
extent and ensure the safety and reliable operation of water intakes
Key words Huangjinbu power plant mobilebed physical model test water intakesediment erosion and siltation
safety of water taking
黄金埠电厂位于江西省余干县黄金埠镇境内
电厂规划容量 MW一期 MW机组
采用二次循环扩大单元制供水系统需补给水
m
s补给水源为信江拟建电厂取水口工程位于信
江梅港水文站下游约 km 处的信江右汊右岸为
岸边开敞式无坝取水取水口设计为 孔进水口每
孔宽 m设计有进水间拦污栅挡水墙及补给
水泵房孔口之间隔墩为 m取水泵房轴线基本
与主流流向垂直泵房迎流面宽 m 顶部高程
为 m泵房高度为 m
信江在梅港水文站下游 m 河道左岸有长约
m 的低水丁坝其附近河床高程为