Horseshoe-shaped shield tunnel lining structure

The invention relates to a horseshoe-shaped shield tunnel lining structure. A ring of the lining structure consists of ten pipe pieces which are classified into 7 types and comprises a first standard block, a second standard block, a first corner block, a second corner block, a first transition block, a second transition block and a top sealing block. During pipe piece splicing, firstly the second standard block at the bottom is spliced, and then the first corner block, the second corner block, the second standard block, the first transition block, the second transition block, the first standard block and the top sealing block are spliced towards two sides. The pipe pieces are annularly and radially connected by virtue of hand holes via bolts. The horseshoe-shaped shield tunnel lining structure has the advantages that the stress characteristics of the horseshoe-shaped lining structure are considered, and a shield tunnel horseshoe-shaped pipe piece structure design is section-variable, so that the structure space and the material strength are fully used; edges of partial pipe pieces are of a stepped design, so that the capability of bearing the shear force is improved; the single ring is less in pipe piece quantity and form; the positions of the radial hand holes meet a certain geometrical relationship, so that one set of pipe pieces can meet the requirement of staggered splicing.