Abstract: Due to the large deviation of a project tunnel in construction, the space for track laying is seriously insufficient, and the steel spring floating slab track cannot be laid. A vibration damping combination scheme proposes to lay a nested damping fastener on rubber floating slab track. By establishing vehicle track structure coupling model, the dynamic simulation calculation is carried out. The results show that the vehicle safety and stability indexes are all qualified. The vibration reduction test shows that the damping combination scheme has good damping effect and can reduce vibration by more than 16 dB.