Concrete floor cushion layer crack preventing construction structure in cold regions

The utility model discloses a concrete floor cushion layer crack preventing construction structure in cold regions. The concrete floor cushion layer crack preventing construction structure comprises a floor cushion layer laid on a concrete foundation. A plurality of transverse partition seams and a plurality of longitudinal partition seams are formed in the floor cushion layer. The distance between every two adjacent transverse partition seams and the distance between every two left-and-right adjacent longitudinal partition seams both range from 4 m to 5 m. The transverse partition seams and the longitudinal partition seams are perpendicularly distributed. Each transverse partition seam is filled with a transverse heat preservation batten. Each longitudinal partition seam is filled with a longitudinal heat preservation batten. The transverse heat preservation battens arranged in the multiple transverse partition seams in the filled mode and the longitudinal heat preservation battens arranged in the multiple longitudinal partition seams in the filled mode are all located in the same horizontal plane. The thicknesses of the transverse heat preservation battens and the longitudinal heat preservation battens all range from 30 mm to 50 mm. The concrete floor cushion layer crack preventing construction structure is simple in structure, reasonable in design, easy and convenient to construct and operate and good in construction effect, the completely-constructed floor cushion layer partition seams are good in caulking quality and not prone to cracking, and floor cracks can be effectively reduced.