INFLUENCE OF BARS IN RIVER CHANNELS WITH DIVISION AND MERGENCE

Abstract

In recent years circumstances surrounding river sciences have been greatly changing. It is noted that a river not only safely discharges water particularly during flood, but it plays an important role in creating an environment that is beneficial to people and a larger ecosystem. Therefore, new attempts to restore regulated rivers to their original, natural forms are underway.
In this study, restoration of a river that had been straightened to its original meandering course was conducted in simulation. To obtain basic data for understanding the flow regime and behavior of sandbars at the completion of restoration works, a model experiment was carried out.