Connecting structure of red mud storage yard anti-seepage film and concrete column and construction method

Abstract

The invention discloses a connecting structure of a red mud storage yard anti-seepage film and a concrete column and a construction method. According to the connecting structure, a film pressing platform (2) is arranged above a column base (1) and below a field level line (4) of a storage yard foundation (7), an upper end face line of the film pressing platform (2) is consistent with the field level line (4), a micro-expansion concrete layer (6) is arranged on the upper end face of the film pressing platform (2), the film pressing platform (2) and the micro-expansion concrete layer (6) respectively surround the column (3) from bottom to top, and the anti-seepage film (5) is laid above the field level line (4) and extends into the poured micro-expansion concrete layer (6) to form an integral anti-seepage body. According to the connecting structure, the anti-seepage film and the concrete column can be effectively connected to form the stable anti-seepage body, potential danger can be eliminated, alkaline water is prevented from permeating into the foundation along the periphery of the column, the alkaline water pollution possibility is reduced, and the anti-seepage effect of a storage yard is improved. The structure and the construction method are economical, practical and convenient to operate.

Description

technical field [0001] The invention relates to a connection structure and construction method of an anti-seepage membrane in a red mud storage yard and a concrete column used in a belt gallery. Background technique [0002] Red mud belongs to Class II general solid waste, and its pH value is greater than 11.0. At present, land storage is mainly used in China. Since the red mud attached liquid is alkaline, the anti-seepage requirements for the storage yard are relatively high, and the anti-seepage membrane usually adopts a permeability coefficient of ≤10 -12 cm / s, and the stockyard forms an overall anti-seepage, and there must be no leakage of attached liquid, which will cause some serious environmental pollution and health hazards. [0003] At present, the red mud stockpiling process tends to be a dry process, that is, the red mud slurry is pumped to the vicinity of the stockyard, and then filtered into a filter cake through a filter press to reduce the moisture content o...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a connection structure and construction method between the anti-seepage membrane and the concrete column in the red mud storage yard, which can effectively connect the anti-seepage membrane and the column to form a complete anti-seepage body and prevent the leakage of attached liquid. In order to overcome the shortcomings of the existing technology that easily cause the leakage of red mud attached liquid, cause environmental pollution, and even health hazards

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