TBM rockburst section transverse tunnel-to-main tunnel-to-one-tunnel-to-four-connection roof-lifting method

The invention relates to a method for rapidly changing a transverse tunnel to a one-tunnel four-connection top-lifting of a main tunnel in a TBM rockburst section. The method comprises the following steps that S1, an auxiliary channel is constructed outside the tunnel to the main tunnel; s2, constructing an auxiliary channel adit; s3, the construction channel I is constructed in the branch hole direction of the auxiliary channel; s4, constructing a main tunnel; s5, reversely punching an auxiliary channel; and S6, the construction channel II is opened in the opposite direction, and roof lifting is completed. According to the one-hole-four-connection top-lifting method for rapidly converting the transverse hole into the main hole in the TBM rockburst section, the auxiliary channel branch hole firstly enters the main hole, then the auxiliary channel and the construction channel are reversely constructed from the main hole, the construction working face is increased, and therefore disturbance is reduced, the cons