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In-situ Determination Methods of Streambed Hydraulic Conductivity at the Huayuankou Site in the Yellow River, China
Wang Zhihua 1 * #,Shu Longcang 1,Wang Ling 2,Basil Iro Ong’or 1,Wang Wanjie 1
1.College of Water Resources and Environment in Hohai University
2.Hydrological Bureau of Yellow River Conservancy Commission
*Correspondence author
#Submitted by
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Funding: none
Opened online:21 December 2006
Accepted by: none
Citation: Wang Zhihua ,Shu Longcang ,Wang Ling .In-situ Determination Methods of Streambed Hydraulic Conductivity at the Huayuankou Site in the Yellow River, China[OL]. [21 December 2006] http://en.paper.edu.cn/en_releasepaper/content/10432
 
 
Analysis of stream/aquifer interaction requires streambed hydraulic conductivity (K), which can be one to three orders of magnitude lower than that of the corresponding aquifer. How to exactly determine streambed K is an urgent problem for hydrogeologists. A series of in-situ standpipe tests and falling-head permeameter tests were conducted on the streambed sediments at the Huayuankou site, located in the lower reaches of the Yellow River. The mean vertical hydraulic conductivity (Kv) at the study site has been found to be 0.43 m day-1 by using the in-situ standpipe test. Meanwhile, five undisturbed streambed sediment samples at different locations of the Huayuankou site were collected and tested in situ with a falling-head permeameter, respectively. The streambed Kv has been found to be 0.46 m day-1 by means of permeameter. The slight difference between the results shows that both methods can give reliable Kv at the study site. Due to the similar characteristics of streambed materials and in-situ conditions in lower reaches of the Yellow River, this study provides practical methods for determining streambed hydraulic conductivity.
Keywords:hydraulic conductivity; streambed; in-situ standpipe test; permeameter test; the Huayuankou site; lower reaches of the Yellow River.
 
 
 

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