Control method for fully mechanized caving mining stability of large dip angle working face
The invention provides a control method for fully mechanized caving mining stability of a large dip angle working face. The method comprises layout of the large dip angle working face, a stability control method of a working face support, a stability control method of a working face coal wall and a...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a control method for fully mechanized caving mining stability of a large dip angle working face. The method comprises layout of the large dip angle working face, a stability control method of a working face support, a stability control method of a working face coal wall and a safety protection method of fully mechanized caving mining. The working face is in bow pseudo-inclined layout, and can effectively inhibits coal wall rib spalling of the large dip angle working face; coal cut by a coal cutter moves to the coal wall side, and the flying coal risk of a miner working in the walkway is eliminated; and the control method is reasonable in design, technically simple and convenient to construct, with the adoption of the stability control method of the working face coalwall and the safety protection method of the fully mechanized caving mining, stability of the working face coal wall can be improved, the safety problem of workers in a coal mining process is effectively guaranteed, the proba |
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