Guardrail Jacking
- Guardrail to be raised is demarcated and confirmed at site with the Engineer representative.
- Depending on type of footing surface, the height of post shall be 710 mm for concrete surface and 800 mm for non-concrete surface. The following drawing shown the final height of guardrail as intended after the jacking.
Guardrail Jacking (using heavy duty hydraulic jack or chain block)
- The equipment is positioned adjacent to the identified post.
- Manually, the post is raised to the required height as mentioned in (ii) above.
- Upon achieving the required height, the footing of guardrail post is properly compacted as to ensure that the post shall not ‘slip down’.
