A kind of face seismic structure of concrete face rockfill dam and its construction method

Abstract

The invention provides a panel anti-knock structure of a concrete panel rock-fill dam. The structure comprises a rock-fill dam cushion layer, a plastic concrete panel layer and a concrete panel; a barconstruction is arranged in the concrete panel; multiple vertical open seams a are arranged on the concrete panel; multiple vertical open seams b are arranged on the plastic concrete panel layer; inserting plates b with T-shaped sections are arranged in the vertical open seams b; the plastic concrete is laid between an original concrete panel and the rock-fill dam cushion layer to serve as a middle interlayer, the plastic concrete is sufficiently used for improving the stress panel structure type in the panel running period and the earthquake period, and efficient and portable construction onengineering is achieved.

Description

technical field [0001] The invention relates to the field of face anti-seismic structures of rockfill dams, in particular to a face anti-seismic structure of concrete face rockfill dams and a construction method thereof. Background technique [0002] As the main anti-seepage structure of concrete face rockfill dam, its safety and reliability have been one of the main issues concerned by the dam industry. Under the action of self-weight and earthquake load, the panel tends to have a large tensile stress. Because the concrete material is weak in resisting tensile deformation, it is easy to produce structural tensile cracks penetrating the panel. [0003] The existing face rockfill dam design scheme is to set cushion materials with more fine grain content under the face plate to control the relatively smooth contact between the face face and the rockfill body and reduce the stress of the face face. However, during the operation and earthquake periods of face dams, voids will s...

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Problems solved by technology

[0004] The invention provides a face-face anti-seismic structure of a concrete face rockfill dam, which solves the problem that the face plate is difficult to coordinate with the deformation of the rock-fill body during the operation period and the earthquake period of the face dam, and the phenomenon of voiding occurs due to the large tensile stress of the face plate, which causes the face plate to break out. The problem of damage; the present invention effectively improves the force on the panel, thereby effectively preventing and reducing the occurrence of tensile damage to the control panel

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