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http://dx.doi.org/10.3741/JKWRA.2008.41.8.845

An Experimental Study to Evaluate Hydraulic Characteristics and Stability of Scour Protection for Historic Site Restoration of Woljeong-gyo  

Kang, Joon-Gu (Dept. of Water Resources Research, Korea Institute of Construction Technology)
Yeo, Hong-Koo (Dept. of Water Resources Research, Korea Institute of Construction Technology)
Son, Byung-Ju (Dept. of Water Resources Research, Korea Institute of Construction Technology)
Ji, Un (Dept. of Civil and Environmental. Engrg., Myongji Univ.)
Publication Information
Journal of Korea Water Resources Association / v.41, no.8, 2008 , pp. 845-854 More about this Journal
Abstract
The old bridge of Woljeong-gyo, which has the fluvial history and culture, represents the ancient construction and civil engineering techniques. It is the oldest stone bridge in Korea and currently restored with its vicinities. In this study, the experimental model was used to analyze the hydraulic characteristics, the local pier-scour depth without scour protection, and the stability of riprap protection using the old grid type panels and stones for Woljeong-gyo of the study area. The water levels were increased around 30cm due to the restored bridge piers and foundations and the effects went up to 200m upstream. The maximum scour depth of 5.4m was measured and the scour protection tests were performed with the riprap size calculated using empirical equations and the existing scour protection range. The riprap of the existing scour protection in the upstream side was broken away, while the riprap of extended scour protection was very stable for the design flood condition of Woljeong-gyo area.
Keywords
pier-scour; scour protection; riprap protection; old bridge restoration; Woljeong-gyo;
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