{"references": ["", "Prinzl & A.R.A Gomes \"The requirement of Protective measure for building affected by ground movements due to shield Tunneling in soft ground\" Proc. Tunnels and Metro Polises Edited by A.Negro Jr & A. A. Ferreira , Vol. 2 A.A.Balkema 1998.", "D. K. Koungelis & C.E. Augarde \"Interaction between multiple tunnels in soft ground\". School of Engineering, University of Durham, UK 2004.", "D.N. Chapman, S.K. Ahn, and D.V.L. Hunt\" Investigating ground movements caused by the construction of multiple tunnels in soft ground using laboratory model tests '' , Canadian Geotechnical Journal, volume 44, Number 6 jun 2007, ISSN 1208-6010 , Pages 513-523.", "F. H. Chehade and I. Shahrour, '' Numerical analysis of the interaction between twin-tunnels: Influence of the relative position and construction procedure '' , Tunneling and Underground Space Technology, Volume 17, Issues 2-3, jun 2007, Page 213.", "D. N. Chapman, S. K. Ahn, D. Hunt and A. Chan, ''The use of model tests to investigate the ground displacements associated with multiple tunnel construction in soil'' , Tunneling and Underground Space Technology, Volume 21, Issues 3-4, May-July 2006, Page 413.", "M. Marata , T. Okazawa \"Shallow twin tunnel for six lanes beneath densely residential area \" Proc.North American Tunneling, Edited by Levent Ozdemir, A. A. Balkema ,1996.pp 371-380.", "X. Guogang, M. Guoyan, L. Qingbo and C. Zhifang , '' Predicting the settlements above twin tunnels constructed in soft ground\", Tunneling and Underground Space Technology, Volume 19, Issues 4-5, July-September 2004, Page 378.", "M. Karakus and R. J. Fowell , ''Effects of different tunnel face advance excavation on the settlement by FEM'' , Tunneling and Underground Space Technology, Volume 18, Issue 5, November 2003, Pages 513-523."]}

An important aspect of planning for shallow tunneling under urban areas is the determination of likely surface movements and interaction with existing structures. Back analysis of built tunnels that their settlements magnitude is available, could aid the designers to have a more accuracy in future projects. In this paper, one single Tehran Metro Tunnel (at west of Hor square, Jang University Street) was selected. At first, surface settlements of this tunnel were measured in situ. Then this tunnel was modeled using the commercial finite deference software FLAC-3D. Finally, Results of modeling and in situ measurements compared for verification.