干旱区生态环境知识资源中心(Arid): 高含沙河流的低温输沙效应以黄河上游巴彦高勒站为例

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	高含沙河流的低温输沙效应以黄河上游巴彦高勒站为例
其他题名	Low water temperature sediment transport effects of the hyperconcentrated river: a case study of Bayangaole station in the upper Yellow River
	白涛; 慕鹏飞; 张明
来源期刊	水科学进展
ISSN	1001-6791
出版年	2020
卷号	31 期号:2 页码:194-202
中文摘要	黄河是世界上含沙量最高的河流,其上游沙漠宽谷河段的冲沙输沙效应受来水来沙和地形条件变化等影响。为研究高含沙河流在低温条件下的输沙效应,通过引入水温因子,建立了黄河上游沙漠宽谷河段巴彦高勒站的输沙率模型。基于First Optimization平台的通用全局优化算法率定参数,验证了输沙率模型,量化了高含沙河流的低温输沙效应。结果表明: ①水温越低( 1 ~ 7 ℃) ,河道输沙率越大,表明水温对河道输沙率的影响主要表现在低水温时期; ②任意一种工况下,水温1 ℃时河道输沙率约为25 ℃时的2.5倍; ③低水温( 5 ℃)较常温( 16.6 ℃)下的河道输沙率提高了40.7%,在黄河上游开河低温期进行大流量冲沙输沙是水沙调控的最佳时机。研究成果以期为黄河上游沙漠宽谷河段低水温高效冲沙输沙和其他寒区高含沙河流的治理提供技术支撑。
英文摘要	The Yellow River is the river with the highest sediment concentration in the world. The sediment transport of the desert-wide valley reaches in the upper Yellow River are affected by inflow,sediment and changes in topographic conditions. To research the effects of low-temperature water on sediment transport in the hyperconcentrated river,we introduced the water temperature factor to a sediment transport rate model established for the Bayangaole station. Based on the general optimization algorithm of the First Optimization platform,the sediment transport rate model was verified,and the low-temperature sediment transport effect of the hyperconcentrated river was quantified. The results show that: ① The water temperature had an influence on the sediment transport rate mainly in the low water temperature period,especially when the sediment transport rate increased obviously when the water temperature fell below 7 ℃; ② In all conditions,the sediment transport rate at a water temperature of 1 ℃ was approximately 2.5 times that at a water temperature of 25 ℃; ③ The sediment transport rate of the river at a low water temperature ( 5 ℃) increased by 40.7% compared to that at a normal temperature ( 16.6 ℃); therefore,in the Upper Yellow River,according to the sediment transport,the best time for water and sediment regulation is during the ice break-up period with low temperatures and high flow conditions. The research results are expected to provide technical support for efficient sediment transport in the low water temperature period of the Yellow River and other hyperconcentrated rivers in cold regions.
中文关键词	高含沙河流 ; 低水温 ; 改进输沙模型 ; First Optimization算法 ; 开河期
英文关键词	hyperconcentrated river low water temperature improved sediment transport model First Optimization algorithm break-up ice period
类型	Article
语种	中文
收录类别	CSCD
WOS研究方向	Engineering
CSCD记录号	CSCD:6694356
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336359
作者单位	白涛, 西安理工大学, 陕西省省部共建西北旱区生态水利国家重点实验室, 西安, 陕西 710048, 中国.; 慕鹏飞, 西安理工大学, 陕西省省部共建西北旱区生态水利国家重点实验室, 西安, 陕西 710048, 中国.; 张明, 西安理工大学, 陕西省省部共建西北旱区生态水利国家重点实验室, 西安, 陕西 710048, 中国.
推荐引用方式 GB/T 7714	白涛,慕鹏飞,张明. 高含沙河流的低温输沙效应以黄河上游巴彦高勒站为例[J],2020,31(2):194-202.
APA	白涛,慕鹏飞,&张明.(2020).高含沙河流的低温输沙效应以黄河上游巴彦高勒站为例.水科学进展,31(2),194-202.
MLA	白涛,et al."高含沙河流的低温输沙效应以黄河上游巴彦高勒站为例".水科学进展 31.2(2020):194-202.