Installation of road guardrail

When installing high road guardrails, they shall be arranged according to the filling height, slope gradient, protected objects, etc. It is a comprehensive performance to ensure the safety of the passengers in the collision vehicle through the overall protection of the guardrail and the correct guidance of the vehicle.

1. Be familiar with the route, bridge and culvert design along the line and consider them before layout;

2. Generally, concrete wall guardrails are used on large and medium bridges. There is a rigid and flexible transition process when they are connected with road guardrails, which should be paid attention to in advance. At this time, the road should be reinforced and firmly connected with the wall guardrail. To avoid the influence of expansion joints on the bridge, a section of wall guardrail can be added on the abutment;

3. Besides, the roadside guardrail shall be set at the emergency telephone, and the opening shall be set to properly protect the telephone facilities, which shall be given special consideration.

4. In the section with high retaining wall, whether the foundation of guardrail column is firm shall be considered.

5. For the sake of safety, wall guardrails can be set;