Corner cutting destroying method of remaining coal pillars

The invention belongs to the field of coal mining, and discloses a corner cutting destroying method of remaining coal pillars. The corner cutting destroying method comprises the following steps: S1, the reserving shape and size of the remaining coal pillars, the vertical distance between bottom plat...

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Bibliographische Detailangaben
Hauptverfasser:	WANG GUIZHOU, FENG GUORUI, CHENG HAOJIE, KANG LIXUN, ZHANG YUJIANG, YUAN HONGHUI, BAI SHIMIN, LIU HUI, LIU XIFENG, DU CAIYI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING MINING OR QUARRYING
Online-Zugang:	Volltext bestellen
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