TY - GEN
T1 - A rock mass rating system for predicting TBM utilization
AU - Yagiz, S.
AU - Kim, T.
AU - Frough, O.
AU - Torabi, S. R.
PY - 2013/10
Y1 - 2013/10
N2 - Prediction of utilization based on rock mass properties is critical for any mechanized tunneling project, since the utilization have an influence on duration and costs of project. Using some case studies including Queens, Milyang, Manapouri, Karaj, Varzo, Maen, Pieve mechanized tunneling project around the world, the attempt is made to estimate utilization via Rock Mass Rating (RMR) System herein. It is concluded that the machine utilization has some reasonable correlations with RMR; however, this relationship is depend on not only rock mass properties but also machine specifications. In other words, the utilization may change with both rock mass conditions and utilized machine type. Due to that rock properties and other related downtimes should be examined together to obtain the reliable equations for predicting the utilization. Further, developed relationships may be used for similar rock type to estimate utilization from RMR.
AB - Prediction of utilization based on rock mass properties is critical for any mechanized tunneling project, since the utilization have an influence on duration and costs of project. Using some case studies including Queens, Milyang, Manapouri, Karaj, Varzo, Maen, Pieve mechanized tunneling project around the world, the attempt is made to estimate utilization via Rock Mass Rating (RMR) System herein. It is concluded that the machine utilization has some reasonable correlations with RMR; however, this relationship is depend on not only rock mass properties but also machine specifications. In other words, the utilization may change with both rock mass conditions and utilized machine type. Due to that rock properties and other related downtimes should be examined together to obtain the reliable equations for predicting the utilization. Further, developed relationships may be used for similar rock type to estimate utilization from RMR.
UR - http://www.scopus.com/inward/record.url?scp=85047213461&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85047213461&partnerID=8YFLogxK
U2 - 10.1201/b15683-158
DO - 10.1201/b15683-158
M3 - Conference contribution
AN - SCOPUS:85047213461
SN - 9781138000803
T3 - ISRM International Symposium - EUROCK 2013
SP - 921
EP - 925
BT - ISRM International Symposium - EUROCK 2013
A2 - Lydzba, null
A2 - Kwasniewski, null
PB - International Society for Rock Mechanics
T2 - ISRM International Symposium - EUROCK 2013
Y2 - 23 October 2013 through 26 October 2013
ER -