Abstract

A program for stable channel design was developed to perform the sensitivity analysis for stable conditions with various sediment transport equations. It provides a useful solution considering design constraints such as a fixed width and depth as well as various solutions for stable channel condition with a wide range. This program applied to the section of the abandoned channel restoration in the Cheongmi Stream, a tributary of Han River in Korea. The predicted slopes with sediment transport equations were steeper than the current channel slope. Overall, the current section has deeper depth and milder bed slope compared to the stable channel prediction results. This could be represented in relation to the formation of sandbars around the study reach in the Cheongmi Stream. Regarding the application to the Cheongmi Stream with the fixed base width, Yang’s equation produced the steepest slope and the shallowest depth. In the case of the application with the fixed depth, the base width predicted by Yang’s equation was the narrowest. For all sediment transport equations, the predicted base width was narrower than the current section.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call