Abstract：Research purposes: When a shield tunnel traverses the section with different geological conditions or surface
buildings , longitudinal deformation and internal forces for segment lining will be produced. So , longitudinal mechanical
problems of the shield tunnel must be considered in design of the segment lining.
Research conclusions: (1) The theoretical formula of equivalent rigidity coefficients for tension, shearing and bending is , X referring to tension, shearing and bending. (2) The equivalent rigidity coefficient of the segment lining of the shield tunnel in a single subway on the longitudinal bending is 0. 05 obtained with FEM ( finite element method ).
李围. 盾构隧道管片衬砌结构纵向刚度问题初步研究[J]. 铁道工程学报, 2008, 25(5): 63-65.
LI Wei. Study on the Longitudinal Rigidity of Segment Lining of Shield Tunnel. 铁道工程学报, 2008, 25(5): 63-65.
2008, Vol. 25 
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