Classification And Functional Analysis Of Road Spikes

1. Basic application characteristics of ordinary road spikes

• Cylindrical rod and flat nail head design, suitable for conventional fixation of straight track

• Rapid positioning through impact installation, low maintenance cost

• Outstanding ability to withstand axial pressure, but easy to loosen under lateral force

2. Enhanced fixing solution of threaded road spikes

• Continuous threads are processed on the surface, and preload is generated through screw-in installation

• The thread engagement effect significantly improves the pull-out resistance, suitable for sections with frequent vibration such as bridges and tunnels

• Hot-dip galvanizing treatment enables it to maintain an anti-corrosion effect for more than 15 years in a humid environment

3. Hook-head road spikes' adaptability to curved tracks

• The nail head is bent to form a hook-shaped structure, which is mechanically interlocked with the rail bottom

• The special geometric shape effectively offsets the centrifugal force when the train passes through the curve

• It needs to be used with an elastic pad to avoid damage to the rail waist due to stress concentration

4. Connection system function of fishtail plate road spikes

Specially used to fix the fishplate at the rail joint, with a loosening groove on the head

• High-strength alloy steel material can withstand dynamic loads of up to 200kN at the joint

• Torque control tools must be used for installation to ensure that the connection surface fits tightly

In actual engineering, the type of spikes must be selected comprehensively based on factors such as track line type, train load and environmental corrosion. For example, threaded spikes should be given priority for freight lines, while the coating thickness of hook spikes should be paid attention to in rainy areas. Scientific selection of spikes is an important part of ensuring the long-term stable operation of railways.