Ayesa 3D ground modelling for tunnelling: practice and training lessons for engineers
Reviewed by Tom Sullivan
First reported on New Civil Engineer
30 Second Briefing
Ayesa head of ground engineering and tunnelling Cláudio Cabral Dias is pushing wider adoption of subsurface 3D ground modelling to de‑risk next‑generation tunnelling, but warns that success depends on structured retraining rather than simply buying new software. He points to integrated 3D geological models that combine borehole logs, geophysics and historical excavation data to predict fault zones and variable rock mass behaviour ahead of TBM drives. Dias stresses that design teams, site engineers and contractors must all learn to interrogate and update these models in real time if they are to influence alignment, support classes and construction sequencing.
Technical Brief
- Subsurface 3D mapping is framed as a safety‑critical design tool, not just visualisation output.
- Dias stresses that without structured retraining, engineers misinterpret 3D ground models, creating new safety risks.
- He argues for formal workflows defining who updates models, when, and under which site triggers.
- Data governance is highlighted: consistent coding of logs and geophysics is needed to avoid unsafe model artefacts.
- Safety culture is expected to shift from static ground assumptions to continuously revised subsurface risk registers.
- Contractors are urged to embed 3D model interrogation into method statements and temporary works checks.
- Dias links model literacy to incident prevention, especially where TBM drives intersect poorly constrained faulted ground.
- Wider implication: clients may begin specifying 3D ground modelling competence as a pre‑qualification safety requirement.
Our Take
Ayesa’s role on HS2 Track Systems Lots 1–3, as noted in our coverage of the Ayesa–Egis JV, suggests its 3D ground modelling tools are already being exercised on some of the UK’s most complex rail tunnelling interfaces, giving the software a high-stress proving ground.
Within the 33 Software stories in our database, Ayesa is one of the few engineering consultancies appearing both as a digital tools proponent and as a delivery-side designer, which typically allows faster feedback loops between site experience and software feature development.
For tunnelling-focused safety work, our tag-matched pieces show far more attention on construction methods than on pre-construction modelling, so Ayesa’s emphasis on 3D ground models signals a shift towards moving risk controls upstream into design and planning rather than relying mainly on procedural controls on site.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
Related Articles
Related Industries & Products
Tunnelling
Specialised solutions for tunnelling projects including grout mix design, hydrogeological analysis, and quality control.
Construction
Quality control software for construction companies with material testing, batch tracking, and compliance management.
QCDB-io
Comprehensive quality control database for manufacturing, tunnelling, and civil construction with UCS testing, PSD analysis, and grout mix design management.