Setting method and structure of horizontal structural joints in concrete slab of rockfill dam

Abstract

The invention discloses a method and structure for arranging horizontal structural joints on a concrete face of a rockfill dam. According to the method and structure for arranging the horizontal structural joints on the concrete face of the rockfill dam, the concrete face is partitioned by section in sequence from bottom to top when the concrete face (1) is poured, and the horizontal arc-shaped joints (2) are arranged at the positions where the concrete face is partitioned; a plastic waterstop(4) is arranged on the outer surface of the concrete face (1) so that the outer ends of the horizontal arc-shaped joints (2) can be sealed, and a copper sheet waterstop (3) is arranged on the surface, in contact with a dam body (7), of the concrete face (1) so that the inner ends of the horizontal arc-shaped joints (2) can be sealed. According to the method and structure for arranging the horizontal structural joint of the concrete face of the rockfill dam, due to the facts that the horizontal structure joints are arranged on the concrete face and the arc-shaped joint structure is adopted, cracking, squeezing and fractureing, caused by serious uneven deformation, of the face which is in the direction perpendicular to the direction of the axis of the rockfill dam can be effectively avoided, the problem of deformation, the problem of fractures and leakage of the face of the rockfill dam can be well solved, and the reliability of the anti-leakage capacity of the concrete face of the rockfill dam is improved.

Description

technical field [0001] The invention relates to a concrete panel joint type in the technical field of dam engineering structures, in particular to a method for setting horizontal structural joints of a concrete panel of a rockfill dam and a panel arc-shaped joint structure. Background technique [0002] Concrete face rockfill dam is one of the commonly used dam types in hydraulic structures. After the rockfill dam is built to store water, under the action of the water pressure on the upper part of the face plate, the filled dam body will continue to produce settlement deformation. When the settlement deformation of the dam body reaches a certain amount, the face plate is prone to cracks or extrusion damage, and even Leakage brings greater difficulty to post-processing, and at the same time affects the normal operation and safety of buildings. [0003] The concrete face of the existing rockfill dam only has vertical structural joints, and there are no horizontal structural j...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem that the concrete face splitting method in the prior art cannot prevent the deformation and damage of the face plate in the vertical direction of the dam axis, and provide a method for setting the horizontal structural joints of the concrete face plate of the rockfill dam and the arc-shaped joints of the face plate structure

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