Updated Analysis of Longwall Pillar Stability (ALPS) computer program incorporates new Coal Mine Roof Rating (CMRR).

Bibliographic Details
Corporate Author: United States. Bureau of Mines
Format: Government Document Book
Language:English
Published: Washington, DC : Bureau of Mines, U.S. Dept. of the Interior, [1995]
Series:Technology news ; no. 445.
Subjects:
Online Access:https://purl.fdlp.gov/GPO/LPS91711

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