著者

稲垣 仁根 井爪 宏 益田 和範

出版者

日本雨水資源化システム学会

雑誌

雨水資源化システム学会誌 (ISSN:13438646)

巻号頁・発行日

vol.17, no.1, pp.33-42, 2011-07

---

As the project for the second period, Aichi Water Supply is working to construct a new water channel system by creating multiple upstream water channels and renovating the check gate. Plans to introduce a demand-driven system in the existing downstream channel using a downstream water stage control gate were hindered by the appearance of hydraulic and structural problems such as rise of the water channel and tunnel flooding. Although attention focused on a supply-driven approach, consideration was given to the possibility of introducing a float-type constant upstream and downstream water stage control gate in which a demand-driven water channel system operates as long some extra capacity exists in the water channel upstream from the gate. This type of gate is distinctive in that downstream water level can be regulated using water stored in the water channel upstream from the gate, and offers the advantage of being able to utilize that water without flooding the existing water channel. The operating mechanism of this gate has been shown to possess adequate practical functionality in both on-site testing and performance results from mathematical-model-based simulations. Unlike an open channel system, this type of gate does not require a major investment and allows for limited demand-driven management of the water supply.