Alternating collaborative mining method of working face rotating mining of rise coal pillar and rise penetrating
The invention relates to the field of coal mining, in particular to alternating collaborative mining of working face rotation mining of a rise coal pillar and continuous working face without the coalpillar rise penetrating or main roadway top cutting forming a gob-side entry. Limiting of a stoping m...
Gespeichert in:
Hauptverfasser: | , , , , , |
---|---|
Format: | Patent |
Sprache: | chi ; eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The invention relates to the field of coal mining, in particular to alternating collaborative mining of working face rotation mining of a rise coal pillar and continuous working face without the coalpillar rise penetrating or main roadway top cutting forming a gob-side entry. Limiting of a stoping mode need to be conducted on underground mining rise or a main roadway protection coal pillar aftera last working face of a mining area upward type or a zone area forward type is mined is combined, an alternating collaborative mining technology to realize working face rotation mining of the rise coal pillar and continuous working face without the coal pillar rise penetrating or main roadway top cutting forming the gob-side entry is provided, by using technologies of 90-degree rotation of a working face, no coal pillar penetrating and support retaining roadway, equipment is transported to a protection coal pillar recovery working face or the continuous working face, and collaborative alternation of coal pillar recove |
---|