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长江干流宜昌至沙市河段地形法槽蓄量分析研究
引用本文:徐高洪,张新田,李中平,毕宏伟.长江干流宜昌至沙市河段地形法槽蓄量分析研究[J].水文,2001,21(6):14-17.
作者姓名:徐高洪  张新田  李中平  毕宏伟
作者单位:长江水利委员会水文局,
基金项目:本文属长江流域防洪规划项目——江湖槽蓄能力及变化研究中部分内容。
摘    要:为满足长江防洪规划的需要,以计算机技术量算了1998年长江宜昌至沙市河道地形图.考虑洞庭湖严重项托影响,建立了以莲花塘水位为参数的宜昌至沙市河段的槽蓄曲线,并用河段水量平衡方法进行了检验分析.应用到大洪水年份河段洪水演进中,显著地提高了洪水过程特别是最高洪水位的拟合精度.历次槽蓄量对比分析表明,本河段槽蓄量变化较为稳定.与传统方法比较,计算机技术具有高精度、高工效等显著优点.

关 键 词:槽蓄曲线  计算机技术  地形法  水量平衡法  洪水演进  长江
文章编号:1000-0852(2001)06-0014-04
修稿时间:2000年12月5日

Geomorphologic Channel Detention for Yangtze River from Yichang to Shashi
XU Gao-hong ZHANG Xin-tian LI Zhong-Ping BI Hong-weiBureau of Hydrology Yangtze River Water Conservancy CommissionWuhan,China.Geomorphologic Channel Detention for Yangtze River from Yichang to Shashi[J].Hydrology,2001,21(6):14-17.
Authors:XU Gao-hong ZHANG Xin-tian LI Zhong-Ping BI Hong-weiBureau of Hydrology Yangtze River Water Conservancy CommissionWuhan  China
Institution:XU Gao-hong ZHANG Xin-tian LI Zhong-Ping BI Hong-weiBureau of Hydrology Yangtze River Water Conservancy CommissionWuhan 430010 China
Abstract:The geomorphologic map of Yangtze River from Yichang to Shashi has been drawn by computer. In regarding to the outflow jamming effect from Dongting Lake a channel detention curve was established by taking the water stage at Lianhuatang station downstream as the reference parameter. It has been verified by using water balance method. When applied to flood routing for the river reach in large water years the curve obviously improves the simulated flood processes especially the result of the highest water stage. The comparison analysis shows that the calculated channel detentions of the reach are stable. Compared with the traditional methods computer technology has the advantage of accuracy and efficiency.
Keywords:channel detention curve computer technology geomorphologic method water balance method flood routing Yangtze River  
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