TY - GEN
T1 - On the way to a better performance prediction for small-diameter hard rock TBMs
AU - Lehmann, G.
AU - Käsling, H.
AU - Thuro, K.
N1 - Publisher Copyright:
© 2023 The Author(s).
PY - 2023
Y1 - 2023
N2 - Small diameter tunneling in hard rock gets increasingly widespread due to the surge of renewables energies and the need for new and longer utility tunnels. The large variety in this small diameter range in hard rock includes different TBM types, cutterhead designs, cutter types and most notably geotechnical conditions. Predicting the advance rate for such project conditions in hard rock is an important factor in tunnel project planning and execution. Data from more than 35 small diameter hard rock tunneling pipe jacking and segment lining projects has been compiled and analyzed. Our analysis showed that the achieved performance for such projects varies considerably from the prediction with industry-standard penetration models. This paper will give an insight into the wide variability of small diameter hard rock tunneling and the associated challenges in performance prediction.
AB - Small diameter tunneling in hard rock gets increasingly widespread due to the surge of renewables energies and the need for new and longer utility tunnels. The large variety in this small diameter range in hard rock includes different TBM types, cutterhead designs, cutter types and most notably geotechnical conditions. Predicting the advance rate for such project conditions in hard rock is an important factor in tunnel project planning and execution. Data from more than 35 small diameter hard rock tunneling pipe jacking and segment lining projects has been compiled and analyzed. Our analysis showed that the achieved performance for such projects varies considerably from the prediction with industry-standard penetration models. This paper will give an insight into the wide variability of small diameter hard rock tunneling and the associated challenges in performance prediction.
UR - http://www.scopus.com/inward/record.url?scp=85160364564&partnerID=8YFLogxK
U2 - 10.1201/9781003348030-158
DO - 10.1201/9781003348030-158
M3 - Conference contribution
AN - SCOPUS:85160364564
SN - 9781003348030
T3 - Expanding Underground - Knowledge and Passion to Make a Positive Impact on the World- Proceedings of the ITA-AITES World Tunnel Congress, WTC 2023
SP - 1328
EP - 1336
BT - Expanding Underground - Knowledge and Passion to Make a Positive Impact on the World- Proceedings of the ITA-AITES World Tunnel Congress, WTC 2023
A2 - Anagnostou, Georgios
A2 - Benardos, Andreas
A2 - Marinos, Vassilis P.
PB - CRC Press/Balkema
T2 - ITA-AITES World Tunnel Congress, ITA-AITES WTC 2023 and the 49th General Assembly of the International Tunnelling and Underground Association, 2023
Y2 - 12 May 2023 through 18 May 2023
ER -