TY - GEN
T1 - Illumination of contributing parameters of uneven break in narrow vein mine
AU - Jang, Hyongdoo
AU - Taheri, Sina
AU - Topal, Erkan
AU - Kawamura, Youhei
PY - 2020
Y1 - 2020
N2 - One of the principal challenge facing the stope production in underground mining is the overbreak and underbreak (UB: uneven break). Although the UB features a critical economic fallout to the entire mining process, it is much inevitable and usually left as an unpredictable phenomenon in underground mines. The complex mechanism of UB must be examined to minimize the UB phenomenon. In this study, the contribution of ten primary UB causative parameters is scrutinized investigating a published UB prediction ANN model. The inputs (UB causative factors) contributions to the output (percentage of UB) of the ANN model were analyzed using Profile methodology (PM). The results PM revealed the essential importance of geological parameters to UB phenomenon as the calculated contributions of adjusted Q-rate (GAQ) and average horizontal to vertical stress ratio (GSK) are 20.48% and 18.12% respectively. Also, the trends of the other eight UB causative factors were investigated. The findings of this study can be used as a reference in stope design and reconciliation processes to maximize the productivity of the underground mine.
AB - One of the principal challenge facing the stope production in underground mining is the overbreak and underbreak (UB: uneven break). Although the UB features a critical economic fallout to the entire mining process, it is much inevitable and usually left as an unpredictable phenomenon in underground mines. The complex mechanism of UB must be examined to minimize the UB phenomenon. In this study, the contribution of ten primary UB causative parameters is scrutinized investigating a published UB prediction ANN model. The inputs (UB causative factors) contributions to the output (percentage of UB) of the ANN model were analyzed using Profile methodology (PM). The results PM revealed the essential importance of geological parameters to UB phenomenon as the calculated contributions of adjusted Q-rate (GAQ) and average horizontal to vertical stress ratio (GSK) are 20.48% and 18.12% respectively. Also, the trends of the other eight UB causative factors were investigated. The findings of this study can be used as a reference in stope design and reconciliation processes to maximize the productivity of the underground mine.
KW - ANN
KW - Narrow vein
KW - Overbreak
KW - Underbreak
UR - http://www.scopus.com/inward/record.url?scp=85089315291&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85089315291&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-33954-8_52
DO - 10.1007/978-3-030-33954-8_52
M3 - Conference contribution
AN - SCOPUS:85089315291
SN - 9783030339531
T3 - Springer Series in Geomechanics and Geoengineering
SP - 457
EP - 466
BT - Proceedings of the 28th International Symposium on Mine Planning and Equipment Selection, MPES 2019
A2 - Topal, Erkan
PB - Springer
T2 - 28th International Symposium on Mine Planning and Equipment Selection, MPES 2019
Y2 - 2 December 2019 through 4 December 2019
ER -