A working-platform assessment considers whether the proposed platform and underlying ground are appropriate for specified construction plant and operating conditions. It relates the actual subgrade, platform materials, plant loading and intended movements to project-specific engineering assumptions.
For piling rigs, drilling rigs, cranes and other heavy equipment, an apparently firm surface is not enough to establish that the platform is suitable. The assessment must consider the equipment data, site conditions and intended construction activities.
The project team should provide the manufacturer and model of the proposed plant, operating configuration, track or outrigger geometry, relevant loading information, working area, site levels and proposed platform build-up.
Where information is incomplete, the geotechnical assessment can only address the assumptions stated in the agreed scope. Changed equipment, loading, platform geometry, weather or ground conditions may require reassessment.
- Rig, crane or plant model and relevant operating weight.
- Track dimensions, outrigger configuration and ground bearing pressures where available.
- Proposed working area, travel paths, edge clearances and platform levels.
- Existing ground conditions, fill, groundwater and any prior investigation results.
- Proposed platform materials, thickness, drainage and construction records.
- Required verification, inspection, maintenance and reporting scope.
BR 470 may provide relevant industry guidance for working platforms for tracked plant where appropriate, but a reference to the document does not replace project-specific design inputs, competent assessment, site safety responsibilities or plant manufacturer requirements.
The platform recommendation should identify its assumptions, subgrade conditions, plant configuration, proposed construction and relevant limitations. A certificate or recommendation cannot cover equipment or operating conditions that were not included in the assessment.
Why inspection and maintenance still matter
Working platforms can deteriorate through wet weather, rutting, repeated trafficking, poor drainage, excavation, local repairs or changed loading. A platform assessment does not replace routine inspection, site safety management or maintenance.
Saturation, pumping, significant rutting, edge damage or a change in rig configuration should prompt the responsible project team to reassess whether continued operation remains appropriate.
Send the project address, platform layout, current ground information, proposed rig or crane data, loading information, site photographs and the required construction programme. Include any requested certificate, verification scope or contractor specification.
Sydney Geotechnical confirms working-platform pricing according to the actual plant, site conditions, investigation requirements and reporting scope.
Common questions
Working platforms for piling and drilling rigs: common questions
Does every piling rig need the same working platform?+
No. Platform requirements depend on the specific plant, operating configuration, ground conditions, proposed platform materials and project-specific loading assumptions.
Does a platform certificate remove the need for daily checks?+
No. The platform still requires appropriate inspection, drainage, maintenance and review when ground, weather, loading or plant conditions change.
Can an existing working platform be assessed?+
Potentially. The appropriate scope depends on site access, available construction records, plant data, current platform condition and whether additional investigation or verification is needed.
Need working-platform assessment in Sydney?
Get a scope matched to the project
Send the site address, proposed works, current plans and any request from your builder, engineer, council or certifier. Sydney Geotechnical will review the information and confirm an appropriate scope and fee.
This guide provides general information only and is not a substitute for investigation, engineering advice, footing design or approval advice for a particular property. Project requirements and ground conditions must be assessed site by site.
