Polyurethane flexible emergency pavement and preparation method thereof

The invention belongs to the technical field of flexible emergency pavements, and discloses a polyurethane flexible emergency pavement and a preparation method thereof, the polyurethane flexible emergency pavement comprises a polyurethane adhesive tape and a reinforcing support rod; the polyurethane adhesive tape comprises a lower-layer adhesive tape and an upper-layer adhesive tape, the reinforcing supporting rods are arranged on the lower-layer adhesive tape at equal intervals, and the upper-layer adhesive tape tightly covers the reinforcing supporting rods; the reinforcing supporting rod comprises a flexible supporting rod and a rigid supporting rod which are arranged in the length direction and the width direction of the polyurethane adhesive tape respectively, and the flexible supporting rod is a flexible sleeve internally provided with an air cavity. In conclusion, when the polyurethane flexible emergency road surface is used, the flexible supporting rods can be driven to form an expansion supporting st