Focusing on the segment of shield tunneling from Jinzhou Avenue Station to Leifeng West Station, specifically where it crosses underneath a drainage culvert, FLAC3D finite element software was used to develop a 3D finite element model for a double-lines shield tunnel intersecting a drainage culvert. Through detailed numerical analysis, the efficacy of soil stabilization techniques in mitigating surface subsidence and managing deformation patterns was thoroughly investigated. It unveils the intricate effects that tunneling beneath drainage culverts has on the development of ground subsidence. Furthermore, the analysis confirms that soil stabilization efforts can significantly reduce both the rate and unevenness of subsidence triggered by such tunneling activities, thus effectively safeguarding the integrity and stability of surface structures.