An Analysis of roof-pillar-weak floor interaction in partial extraction room-and-pillar mining /

Bibliographic Details
Main Author:	Pytel, W. M.
Corporate Authors:	Illinois State Geological Survey, Illinois Mine Subsidence Research Program
Other Authors:	Chugh, Yoginder P.
Format:	Book
Language:	English
Published:	Champaign, Ill. : Illinois Mine Subsidence Research Program, Illinois State Geological Survey, 1990.
Series:	IMSRP reprint ; 1990-4.
Subjects:	Mine roof control. Coal mines and mining > Illinois > Safety measures.

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