Installation method of down-hole arc-shaped gate for hydropower station

The invention discloses an installation method of a down-hole arc-shaped gate for a hydropower station. The installation method of the down-hole arc-shaped gate for the hydropower station comprises the following steps of when pouring concrete on the top part of an installation area, pre-embedding a bower anchor lifting lug structure; installing a bearing steel beam for connecting and fixing an articulated gate shoe assembly in the follow-up process; after assembling an oil cylinder threaded with a steel strand and an oil cylinder support, connecting with the bower anchor lifting lug structurethrough a pin shaft, placing a pump station and a control cabinet, and communicating with a hydraulic oil pipe; conveying an assembled gate leaf into a work gate lock chamber through a trolley, then lifting the gate leaf to the upper part of the lock chamber through the oil cylinder, and temporarily dead-locking; lifting a lower support arm and the articulated gate shoe assembly to be in place through the oil cylinder, an