English：

Underground engineering construction will cause local subsidence of surrounding strata,resulting in additional deformation of adjacent underground pipelines. Once the additional deformation orforce of the pipeline exceeds its bearing limit, it will endanger the safety and normal use of the pipeline.Based on a transparent soil model test, two types of foundation excavation construction, the cantilever andinternal bracing, were simulated, and the influence of different types of local strata subsidence on theangle and opening of the pipeline interface was explored. The results indicate that the excavation of thecantilever foundation excavation and the internal support foundation excavation will cause thedisplacement of spandrel type and groove type, respectively. Compared with the settlement of spandrelstratum, the rotation angle of pipeline interface is more sensitive to the settlement of groove stratum. Therotation angle of the pipe interface induced by the internal bracing foundation excavation is 1. 46 ~2. 03times larger than that of the cantilever foundation excavation. The opening amount of the interfacecaused by the horizontal displacement of the stratum is much larger than the influence of the settlement ofthe stratum. Therefore, the opening amount of the pipeline interface caused by the displacement of thespandrel stratum is larger than that of the groove stratum.