Construction method for shield type TBM empty pushing assembly segment tunnel

The invention relates to the technical field of tunnel construction, and discloses a shield type TBM empty pushing assembly segment tunnel construction method which comprises the following steps that S1, a new Austrian method is adopted for constructing a drilling and blasting method small pilot tunnel at the receiving end of a shield type TBM, primary support is conducted on surrounding rock, and the hole diameter D of the drilling and blasting method small pilot tunnel after primary support is slightly larger than the cutter head diameter D of the shield type TBM; s2, a concrete guide table used for positioning and supporting a shield type TBM bottom pipe piece is poured at the bottom of the drilling and blasting method small pilot tunnel; s3, the shield type TBM enters the drilling and blasting method small pilot tunnel section from the tunneling section and passes through the drilling and blasting method small pilot tunnel section in an empty pushing stepping mode, and the prefabricated pipe pieces are sy