›› 2011, Vol. 32 ›› Issue (12): 3555-3560.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study of internal forces and case study of pipe-roof for box culvert jacking and replacement full face pipe-roof method

XIA Cai-chu1, QUE Cheng-ke1, LIU Sheng1, 2   

  1. 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Changsha Railway Transit Group Co., Ltd., Changsha 410000, China
  • Received:2010-06-02 Online:2011-12-10 Published:2011-12-13

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Abstract: 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.

Key words: box culvert jacking, replacement, pipe-roof, full face, elastic foundation beam

CLC Number: 

  • TV 554
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