Civil Engineering, Iran University of Science & Technology
Civil Engineering, Isfahan University of Technology
In this article a brief review of the literature on the subject is cited. The method of analysis by a finite element program is discussed in which the effect of different influential parameters are examined. The results of these computations are then compared to the corresponding empirical data and two other existing formulae for two dimensional cases. The comparisons show quite reliable and acceptable agreement between the results of the present computations and the results obtained by other recently published formulae, and also with the existing observational data. Finally some prepared design diagrams are presented for predicting the maximum values of surface settlement and the maximum settlement of the tunnel crown.