Featured Geoscience & Engineering Projects

We delivered a region-wide geological survey integrating new cored boreholes, outcrop logging, and desk-based synthesis of historical datasets. Particular emphasis was placed on structural controls, stratigraphic continuity, and geohazard screening relevant to subsurface energy infrastructure.

Methodology

• Core logging to BS and industry guidance, including detailed discontinuity characterisation.
• Digital geological mapping with tablet-based data capture and QA protocols.
• Construction of a 3D conceptual geological model constrained by cross-sections.

Key outcomes

• Clear definition of stratigraphic targets and exclusion zones for subsurface assets.
• Evidence-led recommendations adopted as the basis for subsequent geotechnical design.
• Robust data pack enabling regulators and stakeholders to interrogate the geological rationale.

For a constrained city-centre redevelopment, PIRAN GEOSCIENCE LTD undertook staged ground investigation and analysis to support piled foundations, basement excavation, and service diversions in highly heterogenous made ground and weak bedrock.

Scope and approach

• Phase 1 desk study and preliminary hazard register.
• Phase 2 intrusive investigation with in situ testing and high-quality sampling.
• Derivation of characteristic geotechnical parameters for design limit states.
• Ground movement assessment for sensitive neighbouring structures.

Project benefits

• Refined foundation design leading to a reduction in pile lengths and materials.
• Transparent communication of settlement risk to stakeholders and insurers.
• Evidence-based mitigation measures built into construction sequencing.

We provided the geo-environmental chapter and supporting technical appendices for a new bypass, focusing on soil and groundwater quality, land contamination, mineral resources, and geohazards potentially affecting long-term environmental performance.

Assessment focus

• Baseline soil and groundwater quality characterisation.
• Assessment of construction-phase and operational-phase risks.
• Interface with ecology, hydrology, and materials management disciplines.

Sustainable recommendations

• Material reuse strategy reducing off-site disposal and import requirements.
• Monitoring framework to track groundwater and surface water quality.
• Clear mitigation commitments incorporated into the Environmental Management Plan.

PIRAN GEOSCIENCE LTD developed a 3D subsurface model for a cross-country energy interconnector, combining borehole records, geophysical profiles, legacy reports, and surface mapping. The model provided a single, auditable source of ground truth for multi-disciplinary design teams.

Data integration

• Standardisation and QA of heterogeneous borehole and trial pit datasets.
• Incorporation of seismic and resistivity lines to constrain structural geometry.
• Generation of cross-sections and exportable surfaces for design platforms.

Value delivered

• Rapid scenario testing for alignment variants and construction methodologies.
• Improved visibility of geohazards for risk workshops and cost planning.
• Clear visualisations used to brief project sponsors and regulators.

On a heavily constrained brownfield site, we designed and supervised a phased investigation combining rotary and window-sampling techniques, in situ testing, and groundwater monitoring to de-risk foundations, pavements, and buried services.

Technical rigour

• Real-time logging and digital data capture with embedded quality checks.
• Dynamic adjustment of exploratory hole locations in response to field observations.
• Integration of contamination and geotechnical sampling programmes.

Client outcomes

• Clear ground zoning allowing phased development with defined risk profiles.
• Reduced provisional sums for abnormal ground conditions.
• Concise reporting tailored to both technical and commercial audiences.

PIRAN GEOSCIENCE LTD supported an infrastructure investment fund with a rapid but technically robust review of ground risks across a mixed portfolio of energy, logistics, and regeneration schemes at varying stages of development.

Consulting approach

• Structured review of available geoscience and geotechnical information per asset.
• Risk scoring framework aligned with the client’s internal governance thresholds.
• Targeted recommendations for additional investigation or monitoring where required.

Feedback

“The Piran team distilled complex ground conditions into a format our investment committee could interrogate quickly, without losing technical substance.” – Investment Director, Infrastructure Fund

Our consultants contributed independent geoscience and geo-environmental expertise to a formal scientific advisory group convened to scrutinise design assumptions, risk assessments, and monitoring strategies for a nationally significant infrastructure project.

Role and contribution

• Critical review of ground models, analytical methods, and data quality.
• Participation in structured risk workshops with designers, contractors, and regulators.
• Authoring clear, traceable advisory notes and technical memoranda.

Collaborative outcomes

• Strengthened assurance processes around geoscience inputs.
• Common understanding of residual risks across stakeholder groups.
• Enhanced transparency for the public and oversight bodies.

The value of robust geoscience is best demonstrated through measurable outcomes. Across recent commissions, PIRAN GEOSCIENCE LTD has consistently reduced uncertainty, informed safer designs, and supported more sustainable project decisions.