Role Purpose
Lead the management and preparation of Geotechnical Field Reports-construction-stage documents that reliably capture ground-related realities versus design assumptions. The role ensures that actual ground conditions, excavation behaviour, groundwater observations, temporary works performance, unexpected hazards, methodology changes, instrumentation & monitoring data, and lessons learned are systematically recorded and analysed to inform future site investigation, design development, and risk management.
Key Responsibilities
1) GFR Planning & Framework
- Define the GFR scope, structure, templates, and data standards per project phase and package.
- Establish a capture plan for observations and data (who/what/when/how), aligned with construction methods and programme milestones.
- Set traceability between design assumptions (e.g., GBR, interpretive reports, risk registers) and as-built evidence.
2) Data Capture & Validation
- Coordinate daily/weekly capture of site records:
- Excavation logs, face maps, probe/drill records, spoil logs.
- Groundwater levels/flows, inflow events, pumping rates.
- Temporary works behaviour: ground movements, strut loads, prop performance, shotcrete behaviour, lining convergence, etc.
- Instrumentation & monitoring (I&M): settlement/levelling, inclinometers, extensometers, piezometers, strain gauges, load cells, vibration, noise, dust (as applicable).
- Health, safety and environmental ground-related incidents/near misses.
- Method changes and non-conformance reports with root-cause notes.
- Validate data quality (completeness, timestamping, geo-referencing, calibration status).
- Maintain version control and metadata for all datasets and photos.
3) Technical Assessment & Reconciliation
- Compare observed ground behaviour against design assumptions and geotechnical categories.
- Interpret deviations (e.g., soil/rock type variability, fabric/structure, discontinuities, groundwater regime, gas, obstructions).
- Assess temporary works performance against design criteria and trigger/action levels.
- Identify emerging risks, opportunities, and required design/sequence mitigations.
- Propose targeted supplementary investigation or monitoring where uncertainty remains high.
4) GFR Production
- Prepare concise, evidence-led GFRs with:
- Executive summary & key findings.
- Sectioned narrative per activity (e.g., shafts, deep basements, tunnelling drives, piling, ground treatment).
- Tabulated datasets and annotated figures/photos.
- Cross-reference to design documents (GBR, geotechnical design reports, TW design) and I&M dashboards.
- Impacts on risk register and recommended actions (owner, priority, due date).
- Lessons learned and implications for future phases/sites.
- Manage review cycles (internal, contractor, designer, temporary works coordinator, client) and issue final controlled version
