Structure for emptying and water taking by utilizing diversion tunnel and control method

Abstract

The invention discloses a structure for emptying and water taking by using a diversion tunnel and a control method. The structure comprises the diversion tunnel, a water inlet tower, a trash rack, anemergency gate, a hoist chamber, a winch, an emptying pipe and a gate valve chamber, wherein the emptying pipe is arranged in the diversion tunnel, the water inlet tower and the gate valve chamber arearranged at the two ends of the emptying pipe, the emptying pipe is connected with a water inlet in the bottom of the water inlet tower, the trash rack and the emergency gate are arranged at the water inlet in the bottom of the water inlet tower, the hoist chamber is arranged at the top of the water inlet tower, the winch is arranged in the hoist chamber, and the winch controls the trash rack andthe emergency gate to ascend and descend through a steel wire rope. According to the structure and the method, the diversion tunnel, an emptying building, a water taking building and an ecological flow lowering facility are arranged in a combined mode, the problems of diversion flood control in the construction period, and reservoir emptying, water taking and ecological flow lowering in the operation period are effectively solved, the engineering arrangement is simplified, the construction is convenient, the construction period is shortened, the engineering quantity and investment are reduced, and the later-period operation management is facilitated.

Description

technical field [0001] The invention relates to a structure and control method for venting and taking water by using a diversion tunnel, which is suitable for the design and construction of water conservancy projects using diversion tunnels to carry out reservoir venting, water intake and ecological flow decentralization, and the design and construction of water flow decentralization control methods. Water conservancy and hydropower engineering technology field. Background technique [0002] For flexible dams such as earth-rockfill dams and rockfill dams, in order to build pivotal structures such as dams and spillways, it is necessary to build upstream and downstream cofferdams to retain water in advance, and use diversion tunnels to divert river water from one side to the downstream. The diversion tunnel is an engineering measure often used for diversion during the construction period. It is a tunnel excavated in the mountain body according to the design section. During the...

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Problems solved by technology

Some projects transform temporary diversion tunnels into permanent venting tunnels, some projects combine venting buildings and water intake buildings, and some projects combine ecological decentralization facilities with venting buildings or water intake buildings, but few projects will divert water Therefore, how to combine the four diversion tunnels, emptying buildings, water intake structures and ecological flow release facilities is to simplify the project layout and facilitate The key to construction, saving construction period, reducing engineering quantity and investment

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