The invention discloses a technology for constructing a mined tunnel by adopting a composite tooth supporttunneling construction technology of composite tooth support through mining method, which comprises a composite tooth support
processing technology, a segment staggering and concave-convex phenomenon control technology, a segment
waterproofing technology, a shield
thrust control measurement and a tracing and monitoring technology. The technology for constructing the mined tunnel by adopting the composite tooth supportcomposite tooth support through mining method is characterized in that, in the composite tooth support
processing technology, composite tooth supports are installed in original grouting holes and used for supporting, and the tension of the composite tooth supports and vertical bolts controls segments; in the segment staggering and concave-convex phenomenon control technology, combines the pea gravel spraying and is combined with the shield
tail synchronous grouting; in the segment
waterproofing technology, water swelling stopper is installed on single edge of each segment; the shield
thrust control measurement comprises guide platform
quality control, shield axis control and shield stage
thrust control; and the tracing and monitoring technology comprises tunnel segment attitude instant tracing and monitoring and deformation detection. The composite tooth support through mining methodinvention can shorten construction period and achieve maximum staggering between two segments and maximum staggering between two rings and has the advantages of low cost.