SEDIMENT DISCHARGE CHARACTERISTICS AND SEDIMENT CONCENTRATION MEASUREMENT ABOUT THE 100MM PIPE DIAMETER BURROWING TYPE SEDIMENT REMOVAL SUCTION PIPE

Abstract

The authors have been developing a new sediment discharge countermeasure method which is a “burrowing type sediment removal suction pipe method” using the water head energy differential between the upstream and downstream areas of a dam. In this study, we have carried out some laboratory experiments to examine the new sediment concentration measurement system and sediment discharge characteristics of the pipe. As a result, it is confirmed the system can measure detail sediment concentrations of the pipe’s flow at real-time, and the detail hydraulic characteristics such as the relationship between velocity and the sediment discharge concentration, etc. were found by the system. These hydraulic characteristics will be expected to design the efficient sediment discharge facility.