This paper is intended to present an integrated design approach to provide a flexible
design of pre-cast segmental lining in terms of the quantity of steel reinforcements for an EPB (Earth
Pressure Balanced Shield) driven tunnel in urban area. The integrated design approach is based on
Analytical Solution, Bedded-Spring Method, and Numerical Analysis. In this way, the solicitations
obtained by different methods have been compared in such a way as to consider the variability in
membrane forces, for which the structural verifications should be satisfied. In addition, the reliability
of the integrated method is rationally high due to structural examination by different methods. The
case to be analyzed by proposed integrated design approach was metro project of Ahwaz, a big city
in the Southwest of Iran. The membrane forces in the segmental lining have been analyzed by
proposed method and a quite good tendency in results was observed.