This book introduces the latest frontier of the tunneling science and technology in Japan. It contains a collection of 175 papers presented at the International Symposium on Modern Tunneling Science and Technology held in Kyoto, 2001.Design and construction of urban tunnels 1. Dangerous gap between theory and practice in earth pressure balance shield tunneling in Japan 2. Blow-out pressures measured in a centrifuge model and in the field 3. Numerical analysis of a shield driven tunnel in Lisbon 4. Time-dependant infiltration and groundwater flow in a face stability analysis 5. Three dimensional numerical simulation of tunneling 6. Simulation of shield behaviour at start to use copy cutter 7. Flaming for shield driven double track subway tunnel of box shape 8. Using 3D FEM models for predicting damage during assembling of shield driven tunnel lining of the Green Heart Tunnel 9. Development of a precast concrete lining technique using prestressd concrete structures 10. Structural characteristics and design method of in-situ steel framed concrete liner 11. Structural performance test on hybrid segments of the double-O-tube shield tunnel 12. Numerical and analytical modelling of the seismic behaviour of shallow tunnels 13. Study on large section shield tunneling for practical use 14. The new technologies of constructing the shield tunnel for the power cable in Osaka 15. Construction of urban expressway tunnel with special large cross section by NATM-Metropolitan Inter-City Highway (Ken-O-Do) Ome Tunnel 16. Analysis of a large underground station in the Lisbon metro and its interaction with nearby structures 17. Planning of construction of metro station below the heavily built up area in Delhi 18. Countermeasures for surface settlement in constructing shallow overburden urban tunnels penetrated through active fault 19. Analysis of the behaviour of an old railway tunnel due to the construction of a Lisbon Metro tunnel 20. Engineering project of removing obstacle using nlƒÐ