Details:

Alternative Title:
Int J Min Sci Technol
Personal Author:
Sears, Morgan M. ; Rusnak, John ; Van Dyke, Mark ; Rashed, Gamal ; Mohamed, Khaled ; ... More +
Sears, Morgan M. ; Rusnak, John ; Van Dyke, Mark ; Rashed, Gamal ; Mohamed, Khaled ; Sloan, Michael Less -
Description:
In 2016, room-and-pillar mining provided nearly 40% of underground coal production in the United States. Over the past decade, rib falls have resulted in 12 fatalities, representing 28% of the ground fall fatalities in U.S. underground coal mines. Nine of these 12 fatalities (75%) have occurred in room-and-pillar mines. The objective of this research is to study the geomechanics of bench room-and-pillar mining and the associated response of high pillar ribs at overburden depths greater than 300 m. This paper provides a definition of the bench technique, the pillar response due to loading, observational data for a case history, a calibrated numerical model of the observed rib response, and application of this calibrated model to a second site.
Subject:
[+]
Article
Bench Mining
Deep Cover
Retreat Mining
Rib Response
Rib Support
Thick Seam

Source:
Int J Min Sci Technol. 28(1):107-113.
Pubmed ID:
29862125
Pubmed Central ID:
PMC5978751
Document Type:
Journal Article
Funding:
CC999999/Intramural CDC HHS/United States
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:dc99b533cf39fe9fb273b647297876d2a9c9bfc5282f2b050caf2f8843a622d9
File Type:

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