The shield tunneling method is adopted in the section between Laodonglu Station and Wanghuatun Station of Shenyang Metro Line 4, and the stratum through which the tunnels pass is the water-rich clay stratum. The tunnels pass through dense buildings in the curved section, and the deformation control standard of the buildings is high. According to the comparison of the tunneling effect of the two modes, the earth pressure balance mode is proposed to pass through the buildings. In this study, the parameters of shield tunneling, the setting of shield earth bunker pressure, the setting of grouting holes of B-type segment, and the measurement and control technology of the curve section are discussed in detail. A synchronous grouting grout suitable for the characteristics of the stratum and the characteristics of the shield structure and the gap filling grout between the excavation contour of the knife disk and the outer edge of the shield are developed. The results of building deformation monitoring show that the uplift and subsidence deformation are within the allowable range, and the efficiency of shield tunneling is also greatly improved.