Abstract: For traditional pipe roofs with locking connections(where transversal connections can be neglected),the structure can be idealized as a Euler continuous beam on a Winkler elastic foundation. Taking into account the dynamic variation of the foundation coefficient induced by the box culvert jacking process,a theoretical analysis model was established for the pipe roof under dynamic box culvert jacking,and a corresponding method for calculating pipe roof deformation was proposed. Through engineering case studies,it was found that the longitudinal deformation of the pipe roof transitions from a V-shape to a U-shape during dynamic box culvert jacking,while transverse deformation exhibits a symmetric parabolic distribution due to variations in composite foundation coefficients. Furthermore,sensitivity analyses of four factors(pipe-culvert gap,tube length,tube stiffness,and buried depth)revealed that the composite foundation coefficient and overlying load are the primary factors influencing the maximum deformation of the pipe roof. In contrast,variations in tube stiffness and tube length within a certain range have minimal impact on the overall deformation of the pipe roof.