| 马文敏,蔡瑜,宋华栋.扬黄灌区管灌防淤塞试验研究[J].干旱地区农业研究,2003,(1):17~20 |
| 扬黄灌区管灌防淤塞试验研究 |
| Experiment of silt-preventing in pipe irrigation in the high lift irrigation regions of Yellow River |
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| DOI：10.7606/j.issn.1000-7601.2003.01.04 |
| 中文关键词: 管灌 淤塞 扬黄灌区 |
| 英文关键词:pipe irrigation silt high lift irrigation region of Yell ow River |
| 基金项目:宁夏自治区水利厅科技攻关项目(206410) |
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| 中文摘要: |
| 针对在扬黄灌区采用低压管灌时经常存在的泥沙淤积和碎柴草堵塞等常见问题,在宁夏盐环定扬水工程三泵站的低压管灌示范区进行了含沙量、泥沙淤积、管道流速、碎柴草及悬浮物的现场观测试验。对灌区的管网设计进行了分析验证,结果表明,支管的不淤流速与观测到的不淤流速结果基本相等。提出了在扬黄多风沙地区预防管道淤塞的有效措施。 |
| 英文摘要: |
| Aimed at the common problem of silt by mud and stalks in lo w pressure pipe irrigation in the high lift irrigation regions of Yellow River, the experiment was conducted to measure sand content, sand deposit, pipe flow r ate, stalks and other suspended substances in the demonstration zone of pipe irr igation. The design of pipe irrigation system in the zone was tested and verifie d. The result showed that the computed non silt flow rate of lateral coinc ided well with the measured one. Moreover, the paper proposed the effective mea sures to prevent pipe silt in these regions. |
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