Method for quickly retracing comprehensive mechanized coal mining face in long-distance service roadway multi-channel manner

Abstract

The invention provides a method for quickly retracing a comprehensive mechanized coal mining face in a long-distance service roadway multi-channel manner, and belongs to the technical field of mining. The method mainly comprises the following steps of digging, along a coal wall, a haulage roadway on the outer side of a mining stopping line before the mining stopping line exceeds a working face; digging out connection roadways between the haulage roadway and the mining stopping line, and constructing large-diameter pressure relief holes in the connection roadways and the haulage roadway; arranging stress monitoring stations at the connection roadways and the haulage roadway; when the working face approaches the mining stopping line, if a burst danger is discovered, carrying out pressure relief treatment in time; carrying out tailing-in work when the back production of the working face is carried out until the position of the mining stopping line. By using the method, rock burst dangers generated by a service roadway are reduced; the multi-face parallel operation is realized through the connection roadways; the retracing speed is improved. The safe and quick moving and face inversing of a deep-seated strong-burst comprehensive mechanized coal mining face are basically guaranteed.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a method for quickly retracting a fully-mechanized mining face with multiple channels in long-distance auxiliary lanes. Background technique [0002] The relocation of the fully mechanized mining face is an important production preparation work of the fully mechanized mining production mine. It is not only an important link to realize safe production in the mine, but also directly restricts the improvement of the unit yield level of the fully mechanized mining face. With the improvement of the degree of mechanization of coal mines, the application of high-power and large-tonnage mechanical equipment, the work of moving and reversing seriously restricts the improvement of the unit yield level of fully-mechanized mining face. At present, there are mainly the following two rapid withdrawal methods: (1) CN1482344A discloses a multi-channel moving method for auxiliary lanes in fully me...

AI Technical Summary

Problems solved by technology

The above two methods of rapid withdrawal of fully mechanized mining face have been widely applied in shallow mines and achieved good results. Significant changes occurred in the shallower part, resulting in roof fall, deformation and impact gradually appearing when the retraction channel and the working face were connected, which seriously affected the safety and rapid relocation of the fully mechanized mining face.

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