Sustainable retaining walls, abutments and slopes for resilient infrastructure
For more than 60 years, Geoquest has helped infrastructure owners, engineers and contractors deliver reliable retaining structures in environments where conventional approaches reach their limits.
Developed from the original concept invented by Henri Vidal, the Reinforced Earth technique is a proven mechanically stabilized earth (MSE) solution combining engineered backfill, soil reinforcements and facing elements to create durable and adaptable retaining structures.
Infrastructure challenges are becoming more complex
Project stakeholders face increasing pressure to deliver infrastructure that is safe, resilient and sustainable while controlling budgets and construction schedules. At the same time, projects must often be delivered in constrained environments where conventional retaining structures may require extensive excavation, significant concrete volumes or complex foundation treatments. Common project challenges:
- Weak ground conditions
- High retained heights
- Differential settlements
- Seismic exposure
- Restricted working areas
- Accelerated construction schedules
- Carbon reduction objectives
- Landscape integration requirements
How the Reinforced Earth technique works?
The Reinforced Earth technique is based on a simple but powerful principle: friction between compacted granular fill and tensile reinforcements creates a stable composite mass capable of retaining significant loads over the long term. This interaction transforms soil into an engineered construction material with predictable mechanical behaviour.
Unlike conventional retaining structures that rely primarily on reinforced concrete and rigid structural elements, Reinforced Earth structures distribute loads throughout the reinforced fill mass. This approach provides engineers with greater flexibility when designing retaining solutions in challenging ground conditions, constrained construction environments or projects requiring optimized material use, while reducing dependence on large concrete structures and complex foundation treatments.
The technique combines three essential components working together to create durable retaining walls, abutments and reinforced slopes capable of supporting significant loads over the long term:
- Facing elements
Precast concrete panels, steel facings, mineral facings or vegetated finishes provide durability, aesthetics and long-term protection of the reinforced fill mass.
- Soil reinforcements
Steel or geosynthetic reinforcements mobilize tensile resistance and enhance the overall performance of the structure.
- Engineered backfill
Selected granular materials create the bulk of the structure and contribute to long-term stability and performance.
Why choose Reinforced Earth solutions?
Engineered to perform reliably under demanding loading and ground conditions.
- High load-bearing capacity
- Proven outstanding seismic resistance
- Excellent settlement tolerance
- Long-term durability
- Reliable performance under static and dynamic loads
Designed to simplify construction and accelerate project delivery.
- Faster installation
- Reduced excavation requirements
- Limited disruption to surrounding activities
- Adaptability to constrained sites
Optimizing material use while reducing environmental impact.
- Reduced concrete consumption
- Reduced embodied carbon
- Vegetated and mineral-facing options
- Better integration into urban and natural environments
Delivering long-term value throughout the project lifecycle.
- Controlled project costs
- Reduced maintenance requirements
- Efficient use of available land
- Lower lifecycle costs
Our Reinforced Earth solutions:
Why choose Geoquest?
The successful delivery of Reinforced Earth structures depends on more than selecting a retaining solution. Ground conditions, loading requirements, constructability, durability objectives and project constraints must all be considered throughout the design and construction process.
As the inventor and pioneer of the Reinforced Earth technique, Geoquest combines more than 60 years of experience, a global engineering network and proven project expertise to help clients develop durable, efficient and site-adapted structures. With over 100,000 structures delivered worldwide, our teams support projects from concept development through construction and long-term performance.
Applications
- Transportation infrastructure
- Roads, highways, railways, metros and airports
- Hydraulic infrastructure
- Rivers and waterways, coastal and ports and harbors
- Resources and industry
- Mining, oil and gas and energy.
- Urban Development
- Commercial and logistics, functional facilities, housing and residential and sports and leisure
