1. 5) Ward, W.H. and Thomas, H.S.H. : The development of earth loading and deformation in tunnel linings in London Clay, Proceedings of the Sixth International Conference on Soil Mechanics and Foundation Engineering 2, pp.432-436, 1965.
2. 6) Barrat, D.A., O'Reilly, M.P. and Temporal, J. : Long-term measurements of loads on tunnel linings in overconsolidated clay, Tunneling '94, IMM, Chapman & Hall, pp.469-481, 1994.
3. 7) Ward, W.H. and Pender, M.J. : Tunneling in soft ground-general report, Proceedings of the Tenth International Conference on Soil Mechanics and Foundation Engineering 4, pp.261-275, 1981.
4. 8) Gourvenec, S.M., Bolton, M.D., Soga, K., Gui, M.W., Mair, R.J., Edomonds, H., Chudleigh, I.L.J. and Butler, A.P. : Field investigations of long term ground loading on an old tunnel in London Clay, International Symposium Geotechnical Aspects of Underground Construction in Soft Ground (IS-TOKYO), pp.219-224, 1999.