The ribbed steel plate concrete composite structure is used to replace the segment structure for the design and construction of shield tunnel lining.The finite element software was used to establish the numerical calculation model of ribbed steel plate concrete composite lining structure under various working conditions,and the stress and deformation law of lining structure under different influencingfactors was summarized.The research shows that with the increase of the number of ribs,the vertical and horizontal displacements at the top decrease,and the vertical displacement at the bottom increases.With the increase of rib height,the top vertical displacement decreases,and the bottom vertical and horizontal displacement increases.With the increase of steel plate thickness,the horizontal displacement and vertical displacement show a nonlinear decreasing trend.
composite lining structuredeformation characteristicsforce characteristicsanalysis of influencing factors