Construction method of high-strength sealing wall with anti-seepage function in mine roadway

Abstract

The invention relates to a construction method of a high-strength sealing wall with an anti-seepage function in a mine roadway and belongs to the field of protection measures for mine water disasters.The method includes the steps of 1, forming grooves in a top plate and a bottom plate in a sealed place and the two sides of the sealed place and removing waste on the site; 2, determining the positions and size of three holes; 3, constructing a brick wall, installing anchoring rods in grooves formed in a concrete wall and constructing a steel bar framework; 4, before construction of a wall body,filling the holes, adopting a vertical guide pipe insertion method for pouring of the concrete wall until pouring of the concrete wall is finished, and spraying slurry after construction of the wallbody is finished. An anti-seepage concrete wall construction process of a dam is combined, and through installation of an underground anti-seepage high-strength sealing device, the anti-seepage high-strength sealing wall which is convenient in construction, small in seepage amount and high in safety and reliability and can achieve sealing in a water permeation period is provided. The sealing walladopts a combined wall body structure composed of the brick wall, a filling layer and the concrete wall and solves the problem that water can permeate when a water influx accident happens under a welland it is needed to construct a waterproof sealing wall.

Description

technical field [0001] The invention belongs to the field of mine water damage protection measures, and in particular relates to a construction method of a mine roadway anti-seepage high-strength airtight wall. Background technique [0002] With the continuous increase of mining depth in our country, the shallow coal resources have tended to be exhausted, and the mine will be threatened by the water accumulation in the upper coal mined-out area when the lower coal is mined. There is a large amount of water in the goaf, and once a water inrush occurs, it will collapse into the underground within a short period of time, causing well flooding accidents. In order to prevent the occurrence of such accidents, waterproof gates and waterproof closed walls are generally taken underground. The waterproof airtight wall is mainly set in the relevant roadway between the goaf water storage reuse area and the normal production mining area and in the underground disaster avoidance chamber....

AI Technical Summary

Problems solved by technology

However, due to its single structure, the bearing strength of the wall mainly depends on the shear force of the anchor rod and the wall, and the strength is relatively small.

Secondly, the straight wall type airtight wall will leak when the water inrush is large or encounter high-pressure water in the wall, and the anti-seepage performance is poor.

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