Methods for treating fully mechanized coal mining face roof accidents through flexible air bags

Abstract

The invention relates to methods for treating fully mechanized coal mining face roof accidents through flexible air bags. The methods comprise the treatment method for fully mechanized coal mining face roof caving, the treatment method for fully mechanized coal mining face roof caving and wall caving, the treatment method for fully mechanized coal mining face coal wall cheek corner non-supporting,and the treatment method for fully mechanized coal mining face roadway wall non-supporting. According to the methods, the flexible air bags are adopted and are pressurized through air inflation to replace to cantilever slabs, driven nogs, backboards and driven columns to provide temporary support, and quick roof connection and wall sealing are ensured; and finally through timely pulling and moving of a support and control over a caved roof, a caved wall area, the coal wall cheek corners, the roadway walls and nearby surrounding rocks, the problems of fully mechanized coal mining face roof caving, the wall caving area, coal wall cheek corner non-supporting, roadway wall non-supporting and the like can be solved quickly, safely and reliably. The methods are simple, operation is easy, the effect is good, and the reliable guarantee is provided for construction safety; and the problems that as for existing methods, in the treating process, roof caving work and aloft work are needed, the construction technology is complex, the construction time is long, and the construction safety is difficult to guarantee are solved.

Description

technical field [0001] The invention relates to a method for treating a roof accident of a fully mechanized mining face, in particular to a method for treating a roof accident of a fully mechanized mining face with a flexible air bag. Background technique [0002] Roof caving, ledges, and hollows in fully-mechanized coal mines are one of the major disasters in coal mine production. Improper handling of the roadway roof in the area of ​​roof caving, ledges, and hollows in the roadway will easily cause the roof to collapse again, causing casualties and equipment damage. damage, affecting the safe production of coal mines. [0003] At present, domestic and foreign coal mines mainly use the following methods to deal with roadway roof caving, side splitting, and roadway side emptying: picking boards, stacking wood piles to connect the roof, bumping wedges, small board filling and inserting backs, etc. These methods require construction workers to work for a long time. When worki...

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Problems solved by technology

[0005] CN103321654B discloses a method for treating coal mine roadway roof fall with a flexible air bag, which is a method for semi-permanent support in the roadway during excavation (that is, the air bag must be kept in good condition during the use of the roadway to achieve the purpose of long-term support [used in the roadway , service period]), and the above-mentioned method has complex process, many procedures, takes a long time, cannot achieve the purpose of fast and efficient treatment, and is not suitable for the problems of side splitting and roof fall accidents in fully mechanized mining working faces

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