Water recession system adopting steel-structure derrick-type water recession opening and construction method thereof

Abstract

The invention discloses a water recession system adopting a steel-structure derrick-type water recession opening. The water recession system mainly comprises a groove steel frame, fenders, a water recession pipe, an energy dissipation pool and a water recession canal. The groove steel frame is a vertical column frame formed in the mode that groove steel is fixed through horizontal supports and scissor supports; a water tank is arranged on the groove steel frame, and groove steel of 1 m is reserved at the bottom end of the water tank; the fenders are arranged in a groove steel groove of the portion, above the water tank, of the groove steel frame; one end of the water recession pipe is inserted into an opening hole, and the other end of the water recession pipe penetrates through a cofferdam and extends into the energy dissipation pool; and the side, away from the cofferdam, in the energy dissipation pool is provided with the water recession canal. The water recession system adopting the steel-structure derrick-type water recession opening is easy to manufacture and mount, conventional materials such as bricks, concrete and cement are not used, the complicated construction process of a traditional water recession opening is omitted, the construction schedule is accelerated, construction cost input is lowered, and the safety risk is low.

Description

technical field [0001] The invention belongs to the technical field of water conservancy engineering, and in particular relates to a water withdrawal system adopting a steel structure derrick type water withdrawal port and a construction method thereof. Background technique [0002] The dredging and dredging works of underwater earthwork in inland waterways and river courses generally adopt the combination of dredging and dredging by conventional dredgers. At present, most inland river dredging projects are constructed by cutter suction dredgers or bucket wheel dredgers, which have high efficiency, good quality, low cost, and the discharge distance can be far or near, especially suitable for projects with relatively discrete mud dumping areas. However, for the dredger reclamation area, the outlet is the most critical and difficult to control; the selection of the outlet form is also the most important link for the entire dredger reclamation area. Choosing a suitable water o...

AI Technical Summary

Problems solved by technology

Choosing a suitable water outlet can not only improve the construction efficiency of the project, but also reduce the safety hazards of the operation project; improper selection can easily lead to large backsilting, slow consolidation and poor flatness of the dredging and filling area, and even affect the entire weir body Water seepage and collapse lead to serious engineering accidents and adverse social impacts

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