XIA Cai-chu, QUE Cheng-ke, LIU Sheng. Study of internal forces and case study of pipe-roof for box culvert jacking and replacement full face pipe-roof method[J]. 2011, 32(12).
XIA Cai-chu, QUE Cheng-ke, LIU Sheng. Study of internal forces and case study of pipe-roof for box culvert jacking and replacement full face pipe-roof method[J]. 2011, 32(12).DOI:
In box culvert jacking and replacement full face pipe-roof method
steel pipes are jacked between the start well and the receiving well. Soil in the pipes is excavated and the full face pipe-roof forms the shape of the box culvert. Subsequently
box culvert is jacked and replaces the full face pipe-roof. Specific to the pipe-roof which is considered to be an elastic foundation beam
two mechanical calculation models of the pipe-roof are built; the deflection curve equation of pipe-roof and the relating settlement control conditional derivation equation can apply to analyze the vertical deformation. By using the elastic foundation method and the simulation test analogy method
it is found that the calculation result is similar to the test result
which means the deflection curve equation is rational and provides theoretical basis for real projects.