Modeling of Suspended Sediment Transport Using Deep Neural Networks
2018
Bong, T.H., Oregon State University, USA | Son, Y.H., Seoul National University, Seoul, Republic of Korea | Kim, K.S., Samsung C and T Engineering and Construction Group, Senior Researcher, Republic of Korea | Kim, D.G., Seoul National University, Seoul, Republic of Korea
Land reclamation, coastal construction, coastline extension and port construction, all of which involve dredging, are increasingly required to meet the growing economic and societal demands in the coastal zone. During the land reclamation, a portion of landfills are lost from the desired location due to a variety of causes, and therefore prediction of sediment transport is very important for economical and efficient land reclamation management. In this study, laboratory disposal tests were performed using an open channel, and suspended sediment transport was analyzed according to flow velocity and grain size. The relationships between the average and standard deviation of the deposition distance and the flow velocity were almost linear, and the relationships between the average and standard deviation of deposition distance and the grain size were found to have high non-linearity in the form of power law. The deposition distribution of sediments was demonstrated to have log-normal distributions regardless of the flow velocity. Based on the experimental results, modeling of suspended sediment transport was performed using deep neural network, one of deep learning techniques, and the deposition distribution was reproduced through log-normal distribution.
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