2004年黄河小北干流连伯滩放淤试验效果  

Effects of Warping Tests Conducted in Lianbotan of Xiaobeiganliu of the Yellow River in 2004

作　　者：姜乃迁[1] 刘斌[2] 王自英[1] 黄富贵[1] 

机构地区：[1]黄河水利科学研究院,河南郑州450003 [2]黄河水利委员会总工办,河南郑州450003

出　　处：《人民黄河》2005年第7期43-44,共2页Yellow River

摘　　要：2004年黄河小北干流连伯滩放淤试验于7月26日开始,8月26日结束,进行了6轮放淤试验。淤区共淤积泥沙300.5万m3,其中粒径大于0.050mm的粗沙淤积量为127.4万m3,占总淤积量的42.4%;粒径小于0.025mm的细沙淤积量为74.9万m3,占总淤积量的24.9%。进入淤区且粒径大于0.050mm的泥沙有94.8%淤积在淤区内;粒径小于0.025mm的泥沙所占比例由淤区进口的平均57.4%上升到退口的平均85.1%。放淤试验工程“淤粗排细”的目标基本得以实现。The warping tests conducted in Lianbotan, Xiaobeiganliu of the Yellow River commenced on July 26, 2004 and finished on August 26, 2004, totaling 6 tests. The total deposition in the warping area is 3.005 million m^3, of which, the coarse sand deposition of grain size > (0.050) mm is 1.274 million m^3, making up 42.4% of the total and fine sand deposition of grain size < 0.025 mm is 0.749 million m^3, making up 24.9% of the total. About 94.8% of grain size > (0.050) mm sediment in the test area are deposited and the fine sand deposition of grain size < 0.025 mm increases from 57.4% at the intake of warping area to 85.1% at the outlet. The test target of 'depositing coarse sand and discharging the fine' is basically achieved.

关 键 词：放淤试验 连伯滩 黄河小北干流 2004年 

分 类 号：TV853[水利工程—水利水电工程]