| 摘要 |
PURPOSE: A prefabricated guardrail having an emergency stop function using the restoring force of a coil spring is provided to prevent a vehicle from scratching by attaching a rubber packing on the end part of a slate. CONSTITUTION: A prefabricated guardrail having an emergency shut-down function using the restoring force of a coil spring comprises support parts, fixed rails(50,50'), and stop parts. The support parts are composed of support posts(70,70') vertically positioned at uniform intervals. The fixed rails are fixed to the support posts in the longitudinal direction of a road. The stop parts are vertically coupled to the fixed rails through bolts and nuts. |
