The characteristic of the fluid force of acting on a rising sector gate

Abstract

The rising sector gate which is the object of this research is planned by the mouth of a river Hyakkengawa which is the drainage canal in river Asahikawa. The rising sector gate is a gate of a new form and the present condition is that there is no design technique about fluid force acting on the gate or opening-and-closing load. By hydraulic model experiment, authors investigated the fluid force of acting on the gate, and calculated opening-and-closing load. And the setting method of the optimal arrangement of drain holes was proposed..