TY - GEN
T1 - Introducing the concept of fracture index for performance prediction of hard rock TBMs
AU - Yagiz, S.
AU - Hassanpour, J.
AU - Rostami, J.
N1 - Publisher Copyright:
© 2024 The Author(s).
PY - 2024/7/15
Y1 - 2024/7/15
N2 - The aim of this paper is to introduce the concept of fracture index for performance prediction of Tunnel Boring Machines (TBM) in excavation of rock tunnels, and to examine the influence of rock fracture intensity and its frequency on machine performance. For this purpose, field data from six tunneling projects excavated by TBM were examined. The database included more than six hundred data points. The fracture index, which represents the fracture count over an arbitrary length of scanline or borehole core with similar intensity of fracturing, provides an insight into the fracturing and joint frequency and state of rock masses. The analysis shows that fracture index can offer a critical quantification of rock mass cuttability, and can heavily impact mechanized rock excavation process, and significantly affect TBM performance.
AB - The aim of this paper is to introduce the concept of fracture index for performance prediction of Tunnel Boring Machines (TBM) in excavation of rock tunnels, and to examine the influence of rock fracture intensity and its frequency on machine performance. For this purpose, field data from six tunneling projects excavated by TBM were examined. The database included more than six hundred data points. The fracture index, which represents the fracture count over an arbitrary length of scanline or borehole core with similar intensity of fracturing, provides an insight into the fracturing and joint frequency and state of rock masses. The analysis shows that fracture index can offer a critical quantification of rock mass cuttability, and can heavily impact mechanized rock excavation process, and significantly affect TBM performance.
UR - https://www.scopus.com/pages/publications/85200377296
UR - https://www.scopus.com/pages/publications/85200377296#tab=citedBy
U2 - 10.1201/9781003429234-233
DO - 10.1201/9781003429234-233
M3 - Conference contribution
AN - SCOPUS:85200377296
SN - 9781032551449
T3 - New Challenges in Rock Mechanics and Rock Engineering - Proceedings of the ISRM Rock Mechanics Symposium, EUROCK 2024
SP - 1513
EP - 1519
BT - New Challenges in Rock Mechanics and Rock Engineering - Proceedings of the ISRM Rock Mechanics Symposium, EUROCK 2024
A2 - Tomás, Roberto
A2 - Cano, Miguel
A2 - Riquelme, Adrián
A2 - Pastor, José Luis
A2 - Benavente, David
A2 - Ordóñez, Salvador
PB - CRC Press/Balkema
T2 - ISRM European Rock Mechanics Symposium, EUROCK 2024
Y2 - 15 July 2024
ER -