Concrete anti-scour guide wall structure and construction method

Abstract

The invention relates to a concrete anti-scour guide wall structure and a construction method. The concrete anti-scour guide wall structure comprises a construction platform, wherein a secant pile continuous wall is poured on the side, away from a riverway, of the construction platform, a backfill pit is excavated behind the secant pile continuous wall, the backfill pit is filled with a plain concrete layer, an upper guide wall structure concrete layer is poured on the side, close to the secant pile continuous wall, on the upper part of the plain concrete layer, and a passage road is laid in the part located between guide wall structure concrete on the upper part of the plain concrete layer and a slope surface. Through the secant pile continuous wall 4, no temporary cofferdam is needed anymore, so that permanent and temporary combination and pile and wall unification of the concrete anti-scour guide wall structure are realized, namely, the construction cost and the construction time of the temporary cofferdam are saved, the construction period is shortened, the flood risk in the construction period is reduced, and water and soil erosion is reduced.

Description

technical field [0001] The invention belongs to the technical field of anti-scour guide walls of water conservancy and hydropower projects, and in particular relates to a concrete anti-scour guide wall structure and a construction method. Background technique [0002] The anti-scour guide wall structure of water conservancy and hydropower projects, such as diversion, flood discharge building outlets, river bank revetment, etc., mostly adopts the cast-in-place concrete guide wall type. structure. In order to facilitate the construction of concrete guide walls, cofferdams are generally used to protect foundation pits, and earth-rock cofferdams also need to be treated with anti-seepage to form dry construction conditions. For rivers with deep overburden and narrow channels, if the earth-rock cofferdam method is adopted, there will be problems such as large narrowness of the channel bundle, large amount of cofferdam protection, anti-seepage engineering, deep foundation pit, dif...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a concrete anti-scouring guide wall structure and construction method to solve the problem that in the prior art, the use of cofferdam filling will narrow the channel, and the cofferdam protection and anti-seepage engineering quantity is large, the construction period is long, complex process issues

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