Concrete slab crawler groove formwork and slope concrete construction technology of rockfill dam

Abstract

The invention discloses a crawler grooved formwork for a concrete face plate of a rockfill dam, comprising a formwork box, a front drum, a rear drum and an upper bracket; the central axis of the front and rear drums is the front and rear axes, and the upper bracket is provided with a forward and reverse drive motor. The shaft of the motor is the upper shaft; the upper bracket and the left and right ends of the front and rear shafts are respectively provided with left and right support frames; the upper shaft is installed with the upper sprocket, the front and rear shafts are installed with front and rear sprockets, and the upper sprocket and the front and rear sprockets are wound around There is a transmission chain; a transmission belt is wound between the front and rear rollers, the front and rear axles are installed with front and rear cams, and the front and rear cams are connected with front and rear handles; . The invention also discloses a corresponding slope concrete construction process. When pouring, the formwork box and the drive belt are used as the upper formwork for concrete pouring to prevent the concrete from floating up by gravity. When the formwork box rises, it does not rub against the concrete, and there is no need for an external lifting mechanism when moving forward.

Description

technical field [0001] The invention relates to the construction field of water conservancy projects, in particular to a crawler grooved formwork and a construction process for concrete panels of rockfill dams. Background technique [0002] The rockfill dam is a rockfill dam with a rockfill body as a supporting structure, and a concrete face is poured on its upstream surface as an anti-seepage structure, referred to as a face rockfill dam or a face dam. [0003] In order to ensure the construction progress and avoid leakage caused by construction joints, each section of the slope needs to be poured once from the bottom to the top; in order to ensure the safety of the operation and maintenance personnel on the slope and the needs of the landscape, the concrete surface needs to be provided with convex and concave textures (overflow surface except) to increase friction. [0004] At present, the trackless sliding formwork construction technology is used in the construction of f...

AI Technical Summary

Problems solved by technology

[0005] The concrete surface of the construction is smooth, which leaves a safety hazard for the later operation and maintenance personnel to work up and down the slope; the timing of the sliding formwork process is not easy to control, and the concrete surface and the surface of the sliding formwork form sliding friction, and the concrete surface is prone to appear under the action of friction. Cracks that affect the durability of concrete

[0006] The formwork described in the Chinese patent "Crawler Type Circular Formwork for High Pier Construction" with the notification number CN 104674672 B avoids the sliding friction between the concrete surface and the formwork surface, but the support formwork box is always pressed against the stainless steel track, and the support formwork box and the stainless steel track There is sliding friction between them, the formwork box is easily deformed and damaged, the sliding friction between the formwork and the stainless steel track is relatively large, and the stainless steel track will not rotate easily, so it is not suitable for use on slopes

The patented crawler-type circulation formwork for high pier construction relies on the lifting mechanism to lift the formwork, and cannot realize self-propelled construction along the slope.

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