| 黄河三角洲典型灌区实现泥沙长距离输运的原因分析 |
| |
| 引用本文： | 聂莉莉,李敬义,张治昊,杨晓阳,郭慧敏.黄河三角洲典型灌区实现泥沙长距离输运的原因分析[J].水利科技与经济,2009,15(3):189-190. |
| |
| 作者姓名： | 聂莉莉 李敬义 张治昊 杨晓阳 郭慧敏 |
| |
| 作者单位： | 1. 黄河河口管理局,山东东营,257091
2. 中国水利水电科学研究院,北京,100044 |
| |
| 基金项目： | 科技部公益专项项目，国家自然科学基金，水利部科技创新项目 |
| |
| 摘 要： | 小开河引黄灌区运行10a，输沙干渠基本处于冲淤平衡，未进行过大面积清淤，实现了泥沙长距离输运的前期设计目标。引水引沙条件、渠道边界条件，支渠与沉沙池运行情况均是影响小开河灌区泥沙长距离输运的主要因素；加大引水流量，降低引水含沙量，合理调整渠道断面形态，减小渠道糙率，科学调控支渠、沉沙池运行状况，均是提高灌区输沙干渠水流挟沙能力，保障灌区泥沙长距离输运和持续运行的有效措施。
|
| 关 键 词： | 泥沙长距离输运 实践 原因 黄河三角洲川 开河灌区 |
The Analysis on Reasons of the Long Distant Sediment Transport in Typical Irrigation District of Yellow River Delta |
| |
| NIE Li-li,LI Jing-yi,ZHANG Zhi-hao,YANG Xiao-yang,GUO Hui-min.The Analysis on Reasons of the Long Distant Sediment Transport in Typical Irrigation District of Yellow River Delta[J].Water Conservancy Science and Technology and Economy,2009,15(3):189-190. |
| |
| Authors: | NIE Li-li LI Jing-yi ZHANG Zhi-hao YANG Xiao-yang GUO Hui-min |
| |
| Affiliation: | NIE Li-li1,LI Jing-yi1,ZHANG Zhi-hao2,YANG Xiao-yang1,GUO Hui-min1 (1.Management Bureau of Yellow River Estuary,Dongying 257091,Shandong,China,2.China Institute of Water Resources and Hydropower Research,Beijing 100044,China) |
| |
| Abstract: | During ten years of operation,the main canals of Xiaokaihe Irrigation District remained the equilibrium position of aggradation and degradation approximately,that meant no large area of dredging took place,the purpose of the long distant sediment transport was obtained,and the key elements effecting on the long distant sediment transport were discharge,sediment concentration,channel condition,and operations of the branch canals and setting sand basin.Discharge increasing,sediment concentration decreasing,ge... |
| |
| Keywords: | long distant transport sand practice reasons Yellow River Delta Xiaokaihe Irrigation District |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
