High-performance heavy rail and matched connecting pieces thereof

The invention disclose a high-performance heavy rail and a matched connecting piece thereof. The high-performance heavy rail comprises an upper web plate, an upper flange, a lower web plate and a lower flange which are sequentially arranged from top to bottom, the upper web plate, the upper flange, the lower web plate and the lower flange are integrally formed parts, and connecting holes are formed in the front end and the rear end of the upper web plate respectively. According to the high-performance heavy rail and the matched connecting piece thereof, through the arrangement of the upper web plate, the bending resistance of the rail is improved, the connecting point of a front rail body and a rear rail body is arranged on the upper web plate, a larger space is provided for roller wheels of a walking vehicle body, and the diameter of the roller wheels can be increased conveniently; through the arrangement of the matched connecting piece, the welding workload of a construction site is greatly reduced, so that