highway guardrail post spacing

highway guardrail post spacing distance

highway guardrail post spacing means the distance from the center point of the post installation to the center point. highway guardrail post spacing the normal type is 4 meters and the reinforcement type is 2 meters. The installation location can be divided into a roadside guardrail and a central divider guardrail.

highway guardrail post spacing is nationally standard. The highway guardrail post is very important for the stability of the guardrail. The two post are clamped between two corrugated steel guardrails. When the road is in normal operation, the guardrail can be easily inserted into the pre-installed insertion and extraction holes by means of the plug-in post, which serves as isolation and protection.

Application of highway guardrail

At the same time, it cooperates with the guardrail belt on the outer side of the road, and is neat and uniform. When the vehicle collides with it, the corrugated steel guardrail board has good crashworthiness and energy absorption, and it is not easy to be destroyed, and at the same time it can protect the vehicle and the passengers.

highway guardrail post spacing is measured by bridges, passages, movable guardrails, interchanges, and level crossings as control points. The spacing of the high-speed guardrail post is divided into 2m and 4m. The 2m spacing is for the reinforcement post, and the 4m spacing is the ordinary post. However, the actual construction often has the special-shaped spacing. The installed guardrail plate is called the special-shaped plate. Indefinite, so it is difficult to manufacture, and it affects the engineering. Therefore, the spacing of the irregularities should be reduced as much as possible when determining the spacing of the post.

road crash barrier

highway guardrail post spacing installation

The highway guardrail post spacing installation should be consistent with the design drawing and coordinated with the road alignment. The post should be firmly buried in the soil to reach the design depth and be perpendicular to the road surface.

For general road sections, the post can be constructed by driving method. The construction should be accurately positioned. When the depth is too deep, the post should not be pulled out for correction. All of them must be pulled out and re-introduced after the foundation is compacted.

When the driving method cannot be used, the excavation method can be used to bury the post. When the post is buried, the backfill should be made of good material and layered and compacted (the thickness of each layer should not exceed 15cm). The compaction of the backfill should not be less than the phase. Adjacent to the undisturbed soil. The pillars in the rock are backfilled with granules and compacted.

highway guardrail post spacing installation can be installed by drilling method. After the post is positioned, the same material as the roadbed is used for backfilling, and the layer is filled and compacted.

highway guardrail detail dwg

When the post is paved with pavement, the post pit is backfilled and layered from the subgrade to the surface layer 5 cm below the surface layer. The remaining part is backfilled and compacted with the same material as the pavement.