Author(s): M. N. Md. Noh; Masanori Michiue; Osamu Hinokidani
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Keywords: Sluice gate; Sediment flushing process and critical length ofsub-critical zone xmax
Abstract: This study attempts to discover the sediment flushing performance through a sluice gate within the scope of one-dimensional sediment flushing model for a grit chamber under a steep slope condition. The experiment setup had been installed as to entertain a sediment flushing technique for a movable bed configuration. The idea is to obtain a water depth at the gate vicinity, which corresponds to a particular gate opening height so that the sediment-flushing performance can be monitored and measured. In this context, several discharge platforms had been chosen with the variation of water depth being imposed by alternating the gate opening height. Sedimentation process had been conducted by considering the critical sedimentation condition that was by allowing the maximum sedimentation to occur inside the reservoir. Upon achieving this, the flushing process would be commenced immediately. The results conclude that the xmax line was found to be slightly higher for the case of flexible bed compared to the case of fixed bed.
Year: 2001