JDR Vol.16 No.3 pp. 381-386
doi: 10.20965/jdr.2021.p0381

Survey Report:

Validation of Inundation Damage Reduction by a Pump Gate with the New Type of Horizontal Axial Submersible Pump

Kentaro Fukumori*,†, Yu Kurita**, and Hiroaki Furumai***

*Business Planning Section, Business Promotion Department, Pump & Jet Division, Ishigaki Company, Ltd.
1-6-5 Marunouchi, Chiyoda-ku, Tokyo 100-0005, Japan

Corresponding author

**Overseas Sales Section, Business Promotion Department, Pump & Jet Division, Ishigaki Company, Ltd., Tokyo, Japan

***Research Center for Water Environment Technology, School of Engineering, The University of Tokyo, Tokyo, Japan

September 30, 2020
December 17, 2020
April 1, 2021
pump gate, horizontal axial submersible pump, inundation, pumping station, drainage facility

Compared to pumping stations, pump gates have small sites and are constructed for a low cost over a short period of time. A new type of horizontal axial submersible pump that is optimal for pump gates has recently been developed. Since the new type of pump can be operated at full speed regardless of water level, it is possible to conduct standby operations in preparation for stormwater runoff inflows. In a simulation comparing the conventional pumps and the new type of pump, there was no serious inundation condition in the new pump up to 70 mm/h, which is 140% of the design’s rainfall intensity. As a result, it was clarified that standby operations can keep the peak water level low and maximize the water storage capacity of the drainage channel.

Cite this article as:
K. Fukumori, Y. Kurita, and H. Furumai, “Validation of Inundation Damage Reduction by a Pump Gate with the New Type of Horizontal Axial Submersible Pump,” J. Disaster Res., Vol.16 No.3, pp. 381-386, 2021.
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Last updated on Apr. 22, 2024