Shield launching and receiving is the key risk point in shield tunnel construction. This paper took the shield receiving project in the downlink line of Changzhou Metro Line 1 of Boai Road station to Changzhou Railway Station as an example. The tunnel is underneath the Changzhou Railway Station and the top of the tunnel is only 3.75 m from the structure floor of the underground hall. Restricted by ground conditions

horizontal freezing method was adopted for the shield receiving construction. The freezing temperature field

the pressure in pressure relief holes and the uplift of the station floor were monitored and analyzed. The results show that the temperature drops slowly and the floor heave is closely related to the change of the temperature at the measuring point. The uplift of the station floor is larger with frost heave. The maximum uplift value is about 46 mm which is located at the center line of tunnel entrance. In order to prevent the overlarge frost heave caused by the low temperature and the damage of the superstructure

a pressure relief measure was adopted by appropriate water discharge around the frozen wall. The short steel box device was installed to receive the shield when the connected freezing wall has not fully met the requirements of the freezing design. The practice shows that the sealing effect of moderate pressure relief horizontal freezing reinforcement and installation short steel box is good. The engineering is safe and reliable. The presented method will provide a feasible technology for similar projects in the future.