Layout structure of hydropower station underground workshop unit exit gate

Abstract

The invention discloses a layout structure of a hydropower station underground workshop unit exit gate. The layout structure comprises a gate arranged in an exit pipe on the downstream portion of a unit. A concrete structure at the top of the exit pipe is internally provided with a gate storing slot in a prefabricated manner. A hydraulic hoist platform is arranged above the gate storing slot, a vertical channel with vertical guide rails is arranged between the hydraulic hoist platform and the gate storing slot, a sealing rubber gasket is arranged between a hydraulic hoist rack and the verticalchannel, and the tail end of a hanging head of a hydraulic hoist is provided with guide wheels slidably connected with the vertical rails. The end, close to the unit, of the gate is hinged to the gate storing slot, the upper surface of the gate is hinged to the hanging head of the hydraulic hoist through a connection rod, and the circumference of the lower surface of the gate is wrapped with water sealing rubber in sealing fit with an embedded frame in the exit pipe. The hoist operation platform can be arranged below the downstream highest water level, chamber excavation and the gate slot concrete casting quantity are greatly reduced, the layout structure contributes to stability of chamber structures, and the construction cost is also saved.

Description

technical field [0001] The invention relates to the technical field of outlet gates of underground powerhouses of hydropower stations, in particular to an arrangement structure of outlet gates of underground powerhouses of hydropower stations. Background technique [0002] The powerhouses of hydropower stations are divided into ground-type powerhouses and underground powerhouses. The main advantage of the underground factory building is that the factory building does not occupy the ground, has less interference with the construction of ground hydraulic structures, and the construction period is relatively short. It is usually composed of three-dimensional intersecting caverns. The use of this type of factory building requires that the geological conditions can meet the calculation of the stability of the cavern, and the amount of excavation in the cavern should be minimized to avoid excessive excavation affecting the stability of the cavern structure and causing potential sa...

AI Technical Summary

Problems solved by technology

[0003] The invention provides an arrangement structure of the outlet gate of the underground powerhouse unit of a hydropower station, aiming to solve the problems of difficulty in excavating the exit gate chamber of the existing underground powerhouse and large engineering investment

Images