123 Modeling Riverbed Scour Estimation Downstream of Changzhou Reservoir

The effective measures to predict scouring of river bed and water lever lowing downstream of the reservoir are needed in channel engineering. In this paper, the SMS version 8.1 model was evaluated to predict the process of the riverbed longitudinal erosion and water level lowing downstream of Changzhou Reservoir. According to the model calculation results, the consequence is that the water level descends about 59cm in the near-dam reach downstream and the maximum erosion depth of cross section is about 2.08m.