Abstract: The construction of a pipe jacking project that adjacent to the existing Tram Line No. 1 in Suzhou under operation was numerically simulated. The launching jacking pit excavation and the pipe jacking process were simulated by using the modified MohrCoulomb constitutive model. The construction sequence was therefore optimized from the numerical analysis results. From the numerical analysis results of the pipe jacking, it is concluded that both the maximum vertical and lateral movement at the existing tram line met the code allowable values. 

Key words: Pipe Jacking, Tram Lines, Modified MohrCoulomb Model