摘要
Abstract
A hydropower station is situated in a cold region and consists of high dam and large reservoir; for which the water discharge system is to be taken as an emptying tunnel in the prior period of the pre-feasibility study for the construction during flood season.In this scheme,the opening size of the radial gate for the medium emptying tunnel is large with high head for water retaining and operation,and then its design difficulty is rare in the world.Thus,not only the manufacture,transportation and installation of its leaf,arm,trunion are quite difficult,but the technical requirement on its hoisting equipment is also higher with a large difficulty to be realized under the conventional design concept.Furthermore,if the type of pressure-filled water stop with mature technique and better technology economy is adopted for its water-seal,the risk of its failure caused by the freeze of the pipeline will occur under a lower temperature condition,which is unfavorable to the safe operation of the gate.Therefore,the structure,water-seal,gate slot and hoisting equipment of this large deep-outlet radial gate are analyzed herein in accordance with the problems mentioned above.Moreover,the corresponding solving schemes concerned are put forward,so as to provide some references for the successive similar radial gate.关键词
弧形闸门/框架结构/支铰/轴承/水封/偏心铰/门槽/液压启闭机Key words
radial gate/ frame structure/ trunion/ bearing/ water-seal/ eccentric-hinge/ gate slot/ hydraulic hoist分类
建筑与水利
