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Predicting Probable Roof Fall Areas in Advance of Mining by Geological Analysis.

PB221626

Publication Date	1973
Personal Author	Overbey, W. K.; Komar, C. A.; Pasini, J.
Page Count	26
Abstract	Surface fracture trace density, changes in roof rock type, and topographic unloading due to drainage were mapped for the mining areas located in the Blacksville-Osage, W. Va., quadrangles to investigate their influence on mine roof falls. Using these factors, a technique was developed to predict probable roof fall areas ahead of projected mining operations. As a feasibility test of this proposed technique, areas were delineated where one, two, and all three of these factors were operating to formulate a 'potential hazard map' for comparison with roof fall observations that were made. The limited evidence suggests that in combination these factors are reliable predictors of where roof falls are likely to occur. This technique promises to be a useful tool in planning mining operations. (Author)
Keywords	Structural geology Mine bursts Coal mines Forecasting Aerial photography Remote sensing Fracture zones Stress concentration Rock mechanics West Virginia BM
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared in cooperation with Morgantown Energy Research Center, W. Va.
Document Type	Technical Report
Title Note	Technical progress rept.
NTIS Issue Number	197318

Predicting Probable Roof Fall Areas in Advance of Mining by Geological Analysis.

Predicting Probable Roof Fall Areas in Advance of Mining by Geological Analysis.
PB221626

Publication Date	1973
Personal Author	Overbey, W. K.; Komar, C. A.; Pasini, J.
Page Count	26
Abstract	Surface fracture trace density, changes in roof rock type, and topographic unloading due to drainage were mapped for the mining areas located in the Blacksville-Osage, W. Va., quadrangles to investigate their influence on mine roof falls. Using these factors, a technique was developed to predict probable roof fall areas ahead of projected mining operations. As a feasibility test of this proposed technique, areas were delineated where one, two, and all three of these factors were operating to formulate a 'potential hazard map' for comparison with roof fall observations that were made. The limited evidence suggests that in combination these factors are reliable predictors of where roof falls are likely to occur. This technique promises to be a useful tool in planning mining operations. (Author)
Keywords	Structural geology Mine bursts Coal mines Forecasting Aerial photography Remote sensing Fracture zones Stress concentration Rock mechanics West Virginia BM
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared in cooperation with Morgantown Energy Research Center, W. Va.
Document Type	Technical Report
Title Note	Technical progress rept.
NTIS Issue Number	197318