Chamfer arc anti-cracking structure for reserved hole of prefabricated assembly type laminated slab sleeve

The utility model discloses a prefabricated assembly type laminated slab sleeve reserved hole chamfer arc anti-cracking structure which comprises a laminated slab and a sleeve embedded part, a groove with a round corner is formed in the side corner of the laminated slab, the sleeve embedded part is arranged in the groove, and the sleeve embedded part is not in contact with the laminated slab; arc anti-crack steel bars are arranged in the portion, on the edge of the groove, of the laminated slab, the laminated slab and the sleeve embedded part are fixed together through concrete pouring, and a post-pouring concrete layer is formed on the upper surface of the laminated slab. An installation position is reserved at the position of the laminated slab sleeve, the embedded sleeve is installed and positioned on the formwork before post-pouring layer concrete is poured, the installation precision of the embedded sleeve in the later period can be improved, the edge of the side face is arranged to be of a chamfer arc s