Theoretical analysis

incluing numerical simulation and engineering monitoring is conducted to study the characteristics of the ground deformation and the regularity of formation settlement

which are caused by some part of the Shenyang Metro line 1

passing through underground structure.When the shield approaches the end wall of underground framework from different directions

the soil below the end wall will move

so it must be reinforced.When the drilling of the shield passes through the independent foundation

increasing pressure and volume of grouting can′t reduce the amount of surface subsidence.Because the constraint of underground frame structure

the tunnel construction causes the increasing of width coefficient of the ground settlement tank

the decreasing of maximal settlement becomes gentler.The results of numerical simulation was close to the monitoring data when the stiffness of under-ground frame structure is ignored

and it can provide a guidance for the engineering practice.