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| 大规模采沙后赣江河道外洲站断面冲淤变化分析 | |
| 引用本文： | 邓坤,郭纯青,史小玲.大规模采沙后赣江河道外洲站断面冲淤变化分析[J].桂林工学院学报,2007,27(3):333-336. |
| 作者姓名： | 邓坤 郭纯青 史小玲 |
| 作者单位： | 1. 桂林工学院,资源与环境工程系,广西,桂林,541004;南昌市水文局,南昌,330006 2. 桂林工学院,资源与环境工程系,广西,桂林,541004 3. 南昌市水文局,南昌,330006 |
| 摘 要： | 根据赣江外洲水文站近40年实测大断面资料和沙量资料,分析了大规模和无序河道采沙前后断面的冲淤变化情况,以及对各方面产生的影响.大规模采沙前,外洲河沙站断面变化幅度很小,河床变化不大,河势稳定;20世纪90年代中期大规模采沙以来,断面面积平均每年增大380 m2,河床平均每年下切0.26 m,河床严重变形.尽管河道加深,增强了输水能力,降低了洪水位,提高了防洪标准,但该河段的河势恶化,已影响到河势稳定和堤防安全. |
| 关 键 词： | 河道 采沙 含沙量 大断面 河底高程 赣江 南昌 |
| 文章编号： | 1006-544X（2007）03-0333-04 |
| 修稿时间： | 2006-06-09 |
Analysis on Scour and Sedimention of Ganjiang Section at Waizhou Hydrologic Station by Large Scale Sand Extraction |
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| DENG Kun,GUO Chun-qing,SHI Xiao-ling.Analysis on Scour and Sedimention of Ganjiang Section at Waizhou Hydrologic Station by Large Scale Sand Extraction[J].Journal of Guilin University of Technology,2007,27(3):333-336. | |
| Authors: | DENG Kun GUO Chun-qing SHI Xiao-ling |
| Affiliation: | 1. Department of Resources and Environmental Engineering, Guilin University of Technology, Guilin 541004, China; 2. Nanchang Hydrologic Office, Nanchang 330006, China |
| Abstract: | According to nearly 40 year's sectional and sedimentary data of Waizhou hydrologic station,the riverbed and river regime kept stable before 1990;the area of the channel has developed by 380 m2,and the riverbed is downcut by 0.26 m every year since 1990s.Although the channel is deepened,with more supply of water,lower flood stage and higher flood-prevention standards,the riverbed is deteriorating which will influence the stability of the river regime and security of the dams. |
| Keywords: | channel sand extraction sediment concentration section bed level of the river Ganjiang River Nanchang |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |