What thickness of rail pads is required for high-speed railways?

Railway rail pad is installed between the steel rail and concrete sleepers, its main function is to reduce the shock and vibration in the rail fastening systems.

For high-speed railways, rail pad thickness is typically 8-10 mm for ballastless tracks, focusing on precise stability, while some systems use double-layer pads (total 18-22 mm), with specific thicknesses depending on the track structure (ballast/ballastless) and design needs for vibration dampening and load distribution, often in the 8-12 mm range for general high-speed use.

Typical Thickness Ranges:

• Ballastless Tracks : Often use thinner pads (8-10 mm) or specialized multi-layer designs (20-30 mm total) for precise control.

• Ballasted Tracks: using slightly thicker pads (10-12 mm) to compensate for ballast elasticity.

• General High-Speed: Ranges from 8-12 mm.

Key Considerations for Thickness:

• Vibration & Noise: Thicker pads absorb more vibration and reduce noise, crucial for passenger comfort at high speeds (200-350 km/h).

• Track Stability: Pad thickness affects rail vertical displacement; too thick can reduce stability, while too thin transmits excessive shock.

• Load Distribution: Thicker pads spread the load over a wider area, reducing stress on sleepers.

• Material: Some specialized designs use layered pads (e.g., 5mm top layer for vibration, 13-17mm base for support) for high-speed demands.

In the production and supply of rail pads (track pads), GNEE RAIL demonstrates significant advantages in production capacity, quality, product adaptability, and global service capabilities.

Our EVA/HDPE/rubber rail pads are with high elasticity, applying to types for rails such as rail UIC54, UIC60, BS80lbs,BS100lbs, and sizes as ordered. The pads can be customized with or without grooves, in various possible designs, depending on customers' requirements.

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