Drainage structure of upstream wall of shore type hydropower station workshop and construction method thereof

Abstract

The invention relates to a drainage structure of an upstream wall of a shore type hydropower station workshop and a construction method thereof. The invention aims at reducing the groundwater level of upstream effectively, preventing groundwater from infiltrating into the upstream wall structure and guaranteeing the safety of the wall structure and good running environment of the power station. The technical scheme is as follows: one side of rock which is close to a bottom concrete structure is provided with a group of drainage holes, the outlets of which are connected with a drainage blind pipe network, and a drainage blind pipe at the bottom layer of the drainage blind pipe network is connected with an in-plant drainage system which is pre-buried in the bottom concrete structure; the contact surface of an upper concrete structure and rock ballast is coated with waterproof paint, the drainage blind pipe network is arranged on an outer wall surface, and the drainage blind pipe at the bottom layer of the drainage blind pipe network is connected with an in-plant drainage system which is pre-buried in the upper concrete structure. The drainage structure is suitable for draining the groundwater in the upstream of the hydropower station workshop.

Description

The Drainage Structure and Construction Method of the Upstream Wall of the Shore Powerhouse of the Hydropower Station technical field The invention relates to a drainage structure and a construction method for the upstream wall of a bank-type factory building of a hydropower station. It is suitable for the discharge of groundwater upstream of the plant. Background technique The bank-side powerhouse is arranged on the bank of the river downstream of the dam, which is a type of powerhouse often used in hydropower stations. In general, the factory building is arranged at the foot of the mountain, close to the river bank, as shown in Figure 1. Due to the high terrain on the upstream side of the factory building, the groundwater level is correspondingly high. The upstream groundwater of the built part of the shore factory building seeps into the factory through the wall, and the calcium in the structural concrete of the wall is subsequently precipitated, which not only affects...

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Problems solved by technology

Due to the high terrain on the upstream side of the factory building, the groundwater level is correspondingly high. The upstream groundwater of the built part of the shore factory building seeps into the factory through the wall, and the calcium in the structural concrete of the wall is subsequently precipitated, which not only affects the operating environment of the factory building, but also to a certain extent. Reduced strength and durability of structural concrete

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