TY - GEN
T1 - Numerical modeling of progressive gob formation in a deep longwall mine
AU - Deb, Debasis
AU - Park, Duk Won
AU - Novak, Thomas
PY - 1996
Y1 - 1996
N2 - Because the Environmental Protection Agency has identified methane as a greenhouse gas, the degasification of coal bed methane through gob wells has become more critical. It has been observed that the degree of methane emission is closely related to the geomechanical characteristics of coal bearing strata, roof, floor, and surrounding coal seams. As a result, the study of progressive gob formation becomes necessary to understand the mechanism of strata movement and methane emission through gob wells. Several numerical models were developed to simulate gob formation of a longwall mine having similar geologic conditions as the Warrior Basin in Alabama. In addition, monthly production data from 250 gob wells and corresponding face position in each panel were collected from this area to corroborate the results of numerical modeling. This paper describes the techniques for numerical modeling of progressive gob formation and correlate the results with field investigations.
AB - Because the Environmental Protection Agency has identified methane as a greenhouse gas, the degasification of coal bed methane through gob wells has become more critical. It has been observed that the degree of methane emission is closely related to the geomechanical characteristics of coal bearing strata, roof, floor, and surrounding coal seams. As a result, the study of progressive gob formation becomes necessary to understand the mechanism of strata movement and methane emission through gob wells. Several numerical models were developed to simulate gob formation of a longwall mine having similar geologic conditions as the Warrior Basin in Alabama. In addition, monthly production data from 250 gob wells and corresponding face position in each panel were collected from this area to corroborate the results of numerical modeling. This paper describes the techniques for numerical modeling of progressive gob formation and correlate the results with field investigations.
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M3 - Conference contribution
AN - SCOPUS:35548929797
SN - 905410838X
SN - 9789054108382
T3 - 2nd North American Rock Mechanics Symposium, NARM 1996
SP - 1893
EP - 1901
BT - 2nd North American Rock Mechanics Symposium, NARM 1996
A2 - Hassani, null
A2 - Mitri, null
A2 - Aubertin, null
T2 - 2nd North American Rock Mechanics Symposium, NARM 1996
Y2 - 19 June 1996 through 21 June 1996
ER -