Arch tooth type arch invert cushion pool and construction method

Abstract

The invention discloses an arch tooth type arch invert cushion pool and a construction method. The arch tooth type arch invert cushion pool is characterized in that pervious concrete is arranged at the bottom of an arch invert bottom plate to serve as a cushion layer; a vertical drainage pipe is arranged on the arch invert bottom plate, and the bottom of the vertical drainage pipe extends into thepervious concrete; structural transverse seams are formed in the arch invert bottom plate at intervals, the structural transverse seams are of caulking groove structures, and adjacent blocks mutuallymesh together through caulking grooves to form an arch structure to be integrally stressed; a red copper water stop is arranged at each of the upper part and the lower part of each structural transverse seam, and seam penetrating joint bars are arranged in the middles of the structural transverse seams; and arch teeth are arranged at the bottom of the arch invert bottom plate, steel bars are arranged on the arch invert bottom plate and the arch teeth according to structural stress, and foundation anchor bar bundles are arranged at the arch teeth. The arch tooth type arch invert cushion pool changes the structure and the stress form of a conventional arch invert cushion pool, so that the arch tooth type arch invert cushion pool overcomes the defects that a vertical drainage pipe of a conventional arch invert cushion pool structure foundation is prone to fail, the joint stress of a transverse seam structure is unreasonable, and the stress of the tail end of an arch support is not beneficial to fully utilizing the bearing capacity of bed rock of a bottom plate, so that the stress of the arch support is large.

Description

technical field [0001] The invention provides an arch-tooth type reverse-arch pad pond and a construction method, which belong to the technical field of water conservancy and hydropower engineering and are suitable for the design and construction of the reverse-arch pad pond. Background technique [0002] With the development of my country's water conservancy and hydropower projects, arch dams have become one of the main dam types. The terrain on both sides of high arch dam hubs is generally high mountains and deep valleys. Many high arch dams are not suitable for arranging flood discharge structures outside the dam, and can only vent large amounts through the dam body. flood. When the arch dam uses the dam body for flood discharge, since the water tongue is relatively close to the dam site and the water depth of the downstream river bed is relatively shallow, in order to avoid excessive erosion affecting the safety of the dam foundation and the stability of the bank slopes o...

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Problems solved by technology

[0004] In view of the shortcomings of the vertical drainage pipe of the foundation of the conventional anti-arch pad pond structure, which is prone to failure, the joint force of the transverse joint structure is unreasonable, and the force at the end of the abutment is not conducive to making full use of the bearing capacity of the bedrock of the floor, resulting in a large force on the abutment. The purpose of the invention is to provide an arch-toothed anti-arch water cushion pond and a construction method to overcome the above problems

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