| Issue |
E3S Web Conf.
Volume 40, 2018
River Flow 2018 - Ninth International Conference on Fluvial Hydraulics
|
|
|---|---|---|
| Article Number | 03031 | |
| Number of page(s) | 8 | |
| Section | Hydraulic structures and their effects on bed, flow regime and ecology | |
| DOI | https://doi.org/10.1051/e3sconf/20184003031 | |
| Published online | 05 September 2018 | |
Measurement and control of high suspended sediment concentration during the Kurobe River sediment flushing with submersible type SMDP
1
Disaster Prevention Research Institute, Kyoto University, 6110011 Gokasho, Uji, Japan
2
SMD Engineering, Co., Ltd., Japan
* Corresponding author: sumi.tetsuya.2s@kyoto-u.ac.jp
In the Kurobe River, coordinated sediment flushing and sediment sluicing of Dashidaira and Unazuki dams have been executed since 2001. From the view point of the comprehensive sediment management in the sediment routing system, monitoring of quantity and quality of sediment transport during these events in rivers and reservoirs is very important. This paper shows the results of continuous measurement of high suspended sediment concentration during sediment flushing and sluicing operation of Unazuki dam in 2015 and 2016. These data have been obtained by submergible type of Suspended Sediment Concentration Measuring System with Differential Pressure Transmitter (hereinafter we call ‘submergible type SMDP’), which is designed to be placed underwater. Measured data have good correlation with manual sampling and effectively utilized to control gate operation by real-time basis during the most critical timing producing extreme high concentration just before free flow starts for sediment flushing.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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