Browse > Article
http://dx.doi.org/10.12652/Ksce.2014.34.4.1203

Analyses of Riverbed Changes and Physical Disturbance Evaluations by Weir Installation in a Reach  

Choi, Heung Sik (Sangji University)
Lee, Woong Hee (Sangji University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.34, no.4, 2014 , pp. 1203-1213 More about this Journal
Abstract
The hydraulic characteristics and the patterns of riverbed change had been analysed by HEC-RAS simulation in a reach of Cheong-mi river with and without weir. The corresponding physical disturbance had been evaluated with the method suggested by K-water (2008). The occurrences of low physical disturbance score coincide with the corresponding high bed changes by weir installation. The effects of physical disturbance coincide with the patterns of riverbed change along river reach which shows riverbed change is the important factor to physical disturbance. In case of installation of additional weirs at up and down stream sections of no disturbance effect by the existing weir, no physical disturbances occur in certain sections with confirming the appearance of the similar disturbance scores between the simulation results of with and without additional weir installations. In case of installation of additional weirs at up and down stream sections of disturbance effect margins by the existing weir, physical disturbances occur at every section. In case of installation of additional weirs at up and down stream sections within disturbance effect by the existing weir, low physical disturbance scores are given at every section because of superposition of disturbance along river reach. The physical disturbance would be minimized such that the additional weir is installed with sufficient distances of no disturbance and bed change effects along river reach.
Keywords
Riverbed change; Physical disturbance evaluation; Disturbance effect; Disturbance score;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Scott, D. T., Jhon, F. O., Molly, M. P. and Carrie, L. M. (2005). "Flood disturbance and riparian species diversity on the colorado river delta."Biodiversity and Conservation 14, pp. 1175-1194.   DOI   ScienceOn
2 Landerarbeits-gemeinschaft Wasser (LAWA) (2000). Empfehlungenoberirdische gewasser: Gewasserstruktur-gutekartierung in Der Bundesrepublik Deutschland-Verfahren Furkleine Und Mittelgrosse Fliessgewasser. 1. Aufl., Schwerin.
3 Ministry of Land, Infrastructure, Transport, and Tourism (MLIT) (2001). National census on river environment (in Japanese).
4 Park, B. J., Sin, J. I. and Jung, G. S. (2005). "The evaluation of river naturalness for biological habitat restoration : I. Proposal of Evaluation Method."Journal of Korea Water Resources Association, Vol. 38, No. 1, pp. 37-48 (in Korean).   과학기술학회마을   DOI
5 Stein, J. L., Stein, J. A. and Nix, H. A. (2002). "Spatial analysis of anthropogenic river disturbance at regional and continental scales: Identifying the Wild Rivers of Australia."Landscape and urban planning, Vol. 60, No. 1, pp. 1-25.   DOI   ScienceOn
6 United States Department of Agriculture (USDA) (1998). Stream visual assessment protocol, USDA Natural Resource Conservation Service, National Water and Climate Center Technical Note 99-1.
7 Chinese Research Academy of Environmental Sciences (CRAES) (2012). Technical regulation for assessment of river health.
8 Choi, G. W., Kim, H. J., Park, J. S. and Han, M. S. (2010). "Hydromorphological structure assessment of urban streams after close-to-nature stream restoration using LAWA."Journal of Korea Water Resources Association, Vol. 43, No. 5, pp. 421-431 (in Korean).   과학기술학회마을   DOI   ScienceOn
9 Environment Australia (2000). Australian river assessment system: Review of Physical River Assessment Methods - A Biological Perspective.
10 Jo, Y. H. (1997). Development of an evaluation method of stream naturalness for ecological restoration of stream corridors, Ph. D. Dissertation, University of Seoul, Korea (in Korean).
11 Kim, K. H. (2008). "Assessment of physical river disturbances in the namgang-dam downstream."The Journal of the Korean Environmental Restoration and Revegetation Technology, Vol. 1, No. 1, pp. 45-53 (in Korean).   과학기술학회마을
12 Hesselink A. W., Kleinhans, M. G. and Boreel, G. L. (2006). "Historical discharge measurements in three rhine branches." Journal of Hydraulic Engineering, Vol. 132, No. 2, pp. 140-145.   DOI   ScienceOn
13 Kim, K. H. (2009). "Assessment of physical stream disturbances by river improvement - Case Studies of Nam River and Youngcheon River."The Journal of the Korean Environmental Restoration and Revegetation Technology, Vol. 12, No. 3, pp. 83-97 (in Korean).   과학기술학회마을