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Damilola Akinniyi

Geotechnical engineering and research

Engineering the Ground We Build On

I investigate how unsaturated and tropical soils respond to changing environmental and loading conditions, and what this means for geotechnical design and resilient infrastructure.

Explore My ResearchView Publications
Geotechnical ground system illustration
Ground BehaviourExperimental insight
Climate ResilienceInfrastructure impact

Research focus

Understanding Ground Behaviour

Changes in moisture, temperature, suction, loading and chemical conditions can significantly affect the ground beneath foundations, slopes, highways and containment systems.

My work connects these changes to safer, more sustainable engineering decisions.

Geotechnical ground system illustration

Specialisms

Research Areas

Unsaturated and Tropical Soils

Investigating soils influenced by suction, moisture variation and environmental exposure, including lateritic soils found in tropical regions.

Critical State Soil Mechanics

Using critical state principles to understand soil behaviour under different stress, density and loading conditions.

Soil Microstructure

Exploring how particle arrangement, pore structure and microscopic interactions influence behaviour at the engineering scale.

Compacted Soil Mixtures

Examining the hydraulic, mechanical and shrinkage behaviour of compacted materials used in barriers and liners.

Geo-Environmental Engineering

Investigating interactions between soils, contaminants and environmental systems, including the effects of leachate.

Numerical Modelling

Using computational methods to investigate complex behaviour, test assumptions and interpret experimental results.

Methods and capabilities

Connecting Evidence Across Different Scales

I combine experimental, microstructural and numerical methods to connect laboratory observations with engineering behaviour and practical application.

Laboratory Testing
Soil Characterisation
Mechanical and Hydraulic Testing
Unsaturated Soil Testing
Microstructural Analysis
Critical State Interpretation
Numerical Modelling
Data Analysis and Interpretation

Climate and infrastructure

Engineering for Changing Environmental Conditions

Rainfall, drought, temperature variation and changing groundwater conditions can influence soil strength, volume change and long-term performance.

My research supports more resilient infrastructure and contributes to United Nations Sustainable Development Goals 9 and 13.

Current work

Research Themes

Hydro-mechanical behaviour of tropical soils

Hydro-Mechanical Behaviour of Tropical Soils

Exploring how suction, moisture variation, soil fabric and mineralogy influence water retention, permeability, shear strength, settlement and foundation performance.

Thermo-mechanical behaviour of tropical soils

Thermo-Mechanical Behaviour of Tropical Soils

Investigating how temperature influences stiffness, strength, thermal conductivity and stress-strain behaviour under climate-driven thermal variations.

Microstructural evolution during extreme wetting

Microstructural Evolution During Extreme Wetting

Examining changes in pore structure, particle arrangement and bonding during extreme wetting, and connecting these changes to volume change, permeability and strength loss.

Teaching and geotechnical education

Making Technical Knowledge Useful

I turn research and technical concepts into clear learning resources for students, researchers and practising engineers.

Explore Geotechnical Resources

Knowledge exchange

From Research to Learning

Clear technical communication connects laboratory findings, engineering practice and the development of future professionals.

Selected work

Engineering Publications

A selection of peer-reviewed research covering critical state behaviour, compacted soil mixtures, geo-environmental engineering, unsaturated soils and soil-water retention.

Shrinkage behaviour research graph

Effect of Specimen Preparation on Shrinkage Behaviour of Compacted Bentonite-Sand Mixtures

View Publication
Unsaturated soil dilatancy graph

Influence of Suction on the Dilatancy of an Unsaturated Lateritic Sandy Lean Clay

View Publication
View All Engineering Publications

Practice and industry

Research Grounded in Real Projects

The questions I research come from ground I have actually worked on: tunnelling on the NEOM Mountain Running Tunnel Project in Saudi Arabia, infrastructure and soil mechanics at AECOM in Hong Kong, and civil and geotechnical design with Black Edge Nigeria.

That practice keeps the research honest, and it shapes the problem sets and worked solutions I publish for engineers meeting the same conditions on site.

See Industry Experience and Problem Sets

Research collaboration

Let’s Advance Ground Engineering Together

I welcome collaboration in soil behaviour, environmental change, technical education and resilient infrastructure.

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