The railway shoulder is the core positioning and load-bearing component of railway track structures, usually installed on both sides of the rail on sleepers to limit lateral movement of the rail. It is mainly made of high-strength concrete, ductile iron or wear-resistant cast steel, featuring high compressive strength, good wear resistance and structural stability. It withstands lateral impact forces, vibration loads and continuous extrusion from the rail during train operation, and its performance directly affects rail positioning accuracy, track structural stability and train running smoothness and safety.













