It is a crucial problem to ensure the safety for stabilizing the superstructure and underground tunnel for shield tunneling in urban district,especially for tunneling beneath the building foundation with thin overburden soil layers.A software STEAD is developed on the basis of ground subsidence theory and FLAC~(3D) code for predicting shield tunneling induced settlement.The current paper presents a case study of numerical simulation on the ground surface settlement due to shield tunneling under the foundati...