Ground fissure tunnel asphalt concrete composite lining and supporting method thereof

The invention discloses a ground fissure tunnel asphalt concrete composite lining, wherein an initial lining, an asphalt concrete composite lining and an inside lining are sequentially arranged in an influence interval of a ground fissure from a surrounding rock soil body to a tunnel axial center, deformation joints A are arranged on the inside lining at intervals along a tunnel axis, injected holes are reserved at the bottom of the inside lining at both sides of the deformation joints A, and a displacement monitor is installed at the outer side of the asphalt concrete composite lining. The invention also discloses a supporting method of the ground fissure tunnel asphalt concrete composite lining, and an asphalt concrete pouring material is prepared by mixing modified asphalt after hot melting with sand and stones by adopting a stepped excavation and mining construction method; an asphalt mastic material is filled in the deformation joints A to flexibly connect the two adjacent segments of inside linings and