Throwing extrusion blasting tunneling method

The invention discloses a throwing extrusion blasting tunneling method. The invention discloses a throwing extrusion blasting tunneling method which comprises the following steps: (1) constructing a plurality of first throwing surface blast holes in the bottom or the top of a mining roadway; (2) constructing a second throwing surface blast hole in the upper part or the lower part of the first throwing surface blast hole; (3) constructing row blast holes in the upper part or the lower part of the second throwing surface blast holes; (4) the row of blast holes are filled with explosives and detonators, and hole openings are blocked with stemming; and (5) carrying out millisecond throwing extrusion blasting by utilizing a compensation space between the surface of the mining roadway filling body and the surface of the ore body. The tunneling method for throwing extrusion blasting has the advantages of being large in tunneling footage, high in efficiency, small in blast hole number, low in explosive unit consumpti