小浪底水库运用以来进出库泥沙分析
|
摘要
截至2016年10月,小浪底水库已蓄水运用17 a。水库运用阶段一般分防凌、春灌蓄水和春灌泄水期,汛前调水调沙期,防洪运用以及水库蓄水期。2000—2016年进出库泥沙分别为49.371亿、10.381亿t;汛期入库泥沙占全年的86.6%;汛前调、汛期出库沙量分别占全年的31.1%、68.6%,细沙占出库沙量的79.6%;水库排沙比为21.0%,细沙排沙比为34.8%。水库排沙比随回水长度增加而减少,细沙、中沙、粗沙排沙比随着全沙排沙比的增大而增大,细沙增大最快。
By Oct. 2016,the Xiaolangdi Reservoir has been used for 17 years. The operation during a year is composed of ice control,water storage and discharge of spring irrigation,water and sediment regulation in pre-flood season,flood control and reservoir storage. The mounts of inlet and outlet sediment from 2000 to 2016 are 4.9371 billion and 1.0381 billion tons respectively. The mount of inlet sediment in flood season accounted for 86.6% of whole year; the outlet sediment during water and sediment regulation in pre-flood season and flood season accounted for 31.1% and 68.6% respectively and the fine sediment occupied 79.6% of the outlet sediment. The reservoir sediment delivery ratio is 21.0% and the fine sediment delivery ratio is 34.8%. With the increase of backwater length,the reservoir sediment delivery ratio is decreased. With the increase of total sediment discharge ratio,the sediment delivery ratio of fine,medium and coarse sand increases,of which,the increase of fine sand is the maximum.
By Oct. 2016,the Xiaolangdi Reservoir has been used for 17 years. The operation during a year is composed of ice control,water storage and discharge of spring irrigation,water and sediment regulation in pre-flood season,flood control and reservoir storage. The mounts of inlet and outlet sediment from 2000 to 2016 are 4.9371 billion and 1.0381 billion tons respectively. The mount of inlet sediment in flood season accounted for 86.6% of whole year; the outlet sediment during water and sediment regulation in pre-flood season and flood season accounted for 31.1% and 68.6% respectively and the fine sediment occupied 79.6% of the outlet sediment. The reservoir sediment delivery ratio is 21.0% and the fine sediment delivery ratio is 34.8%. With the increase of backwater length,the reservoir sediment delivery ratio is decreased. With the increase of total sediment discharge ratio,the sediment delivery ratio of fine,medium and coarse sand increases,of which,the increase of fine sand is the maximum.
引文
[1]刘树君.小浪底水利枢纽调度运用回顾[J].人民黄河,2016,38(10):137-141.
[2]陈建国,周文浩,孙平.论小浪底水库近期调水调沙在黄河下游河道冲刷中的作用[J].泥沙研究,2009(3):1-7.
[3]王婷,李小平,任智慧.2016年前汛期中小洪水调水调沙试验研究[R].郑州:黄河水利科学研究院,2016:10-11.
[4]黄河勘测规划设计有限公司.小浪底水利枢纽拦沙后期(第一阶段)运用调度规程[R].郑州:黄河勘测规划设计有限公司,2009:14-16.
[5]李景宗.黄河小浪底水利枢纽规划设计丛书[M].郑州:黄河水利出版社,2006:88-91.
[6]屈章彬,台树辉.小浪底坝前泥沙淤积对大坝基础渗流影响分析[J].人民黄河,2009,31(10):94-95.
[7]韩其为,李淑霞.小浪底水库的拦粗排细及异重流排沙[J].人民黄河,2009,31(5):1-5,12.
[8]王婷,曲少军,胡跃斌.2017年第1号洪水期间小浪底水库异重流分析[J].人民黄河,2017,39(12):29-32.
[9]韩其为.水库淤积[M].北京:科学出版社,2003:97-100.
[2]陈建国,周文浩,孙平.论小浪底水库近期调水调沙在黄河下游河道冲刷中的作用[J].泥沙研究,2009(3):1-7.
[3]王婷,李小平,任智慧.2016年前汛期中小洪水调水调沙试验研究[R].郑州:黄河水利科学研究院,2016:10-11.
[4]黄河勘测规划设计有限公司.小浪底水利枢纽拦沙后期(第一阶段)运用调度规程[R].郑州:黄河勘测规划设计有限公司,2009:14-16.
[5]李景宗.黄河小浪底水利枢纽规划设计丛书[M].郑州:黄河水利出版社,2006:88-91.
[6]屈章彬,台树辉.小浪底坝前泥沙淤积对大坝基础渗流影响分析[J].人民黄河,2009,31(10):94-95.
[7]韩其为,李淑霞.小浪底水库的拦粗排细及异重流排沙[J].人民黄河,2009,31(5):1-5,12.
[8]王婷,曲少军,胡跃斌.2017年第1号洪水期间小浪底水库异重流分析[J].人民黄河,2017,39(12):29-32.
[9]韩其为.水库淤积[M].北京:科学出版社,2003:97-100.