TY - GEN
T1 - Surface settlement prediction for Istanbul metro tunnels via 3D FE and empirical methods
AU - Ercelebi, S. G.
AU - Copur, H.
AU - Bilgin, N.
AU - Feridunoglu, C.
PY - 2005
Y1 - 2005
N2 - In this study, surface settlement is predicted for tunnels which are to be excavated in the section of 5 + 635-5 + 735 meters between Sehzadebasi and Yenikapi stations of Istanbul Metro line. Precautions in order to minimize the ground settlement are also suggested. Geology in this section is composed of clay, claystone, sand and marl. Tunnels, 36m 2 in cross-section, are excavated employing NATM method. Umbrella method of pre-excavation and shotcrete for temporary support are employed. Between crown and bench excavation, a 2.40 meter distance is kept constant. Settlement prediction is made with 2 different methods, empirical and 3D finite element method. Empirical method is based on Gaussian curve suggested by O'Reilley For 3D finite element, 3D Tunnel program is used. For 3D analysis, excavation and ground reinforcement steps are simulated exactly as applied in the field. The results of 2 methods are found to be in good agreement.
AB - In this study, surface settlement is predicted for tunnels which are to be excavated in the section of 5 + 635-5 + 735 meters between Sehzadebasi and Yenikapi stations of Istanbul Metro line. Precautions in order to minimize the ground settlement are also suggested. Geology in this section is composed of clay, claystone, sand and marl. Tunnels, 36m 2 in cross-section, are excavated employing NATM method. Umbrella method of pre-excavation and shotcrete for temporary support are employed. Between crown and bench excavation, a 2.40 meter distance is kept constant. Settlement prediction is made with 2 different methods, empirical and 3D finite element method. Empirical method is based on Gaussian curve suggested by O'Reilley For 3D finite element, 3D Tunnel program is used. For 3D analysis, excavation and ground reinforcement steps are simulated exactly as applied in the field. The results of 2 methods are found to be in good agreement.
UR - https://www.scopus.com/pages/publications/77953362299
M3 - Conference contribution
AN - SCOPUS:77953362299
SN - 0415374537
SN - 9780415374538
T3 - Underground Space Use: Analysis of the Past and Lessons for the Future - Proceedings of the 31st ITA-AITES World Tunnel Congress
SP - 163
EP - 169
BT - Underground Space Use
T2 - 2005 ITA-AITES World Tunnel Congress and 31st General Assembly
Y2 - 7 May 2005 through 12 May 2005
ER -