Transportation Infrastructure
Roadways, bridges, airports, rail systems
servicesdeep injection udi
Deep Injection (UDI)
What is Deep Injection (UDI)?
Deep Injection (UDI) is a trenchless soil stabilization technique that delivers expanding polymer resins at depth to strengthen weak soils, fill voids, and restore foundation support. By compacting soils and displacing water, UDI increases bearing capacity and can provide controlled structural lift with minimal disruption at the surface.
Problems It Solves
- Differential settlement in foundations, pavements, and slabs
- Weak or loose soils lacking sufficient bearing capacity
- Voids caused by erosion, groundwater movement, or abandoned utilities
- Hydrostatic pressure creating instability in saturated soils
- The need for rapid stabilization without excavation
Types of Polymers Used
High-Density Polyurethane Foams
- Expands to densify soils at targeted depths
- Provides lightweight load transfer without soil overload
- Achieves rapid curing for minimal downtime
Structural Polyurethane Resins
- Creates rigid support for foundations and pavements
- Restores bearing capacity in soft or unstable zones
- Extends long-term stability in load-bearing areas
Hydro-Insensitive Polymers
- Expands reliably in wet or saturated conditions
- Displaces pore water to reduce hydrostatic pressure
- Maintains performance in challenging ground environments
Benefits of Deep Injection (UDI)
Deep Injection (UDI) provides targeted soil improvement without excavation. By delivering resins at depth, this process corrects settlement, stabilizes weak soils, and restores long-term performance for critical assets.
Waterproof Protection Where It Matters Most
- Trenchless method with minimal surface disruption
- Restores bearing capacity and soil strength
- Reduces downtime compared to excavation-based repairs
- Provides long-term settlement mitigation and structural stability
Key Applications
Foundation Support
Stabilizes and lifts settled foundations without excavation
Roadways & Bridge Approaches
Restores alignment and eliminates dips at approach slabs
Airport Aprons & Runways
Strengthens subgrades to handle heavy aircraft loading
Rail Corridors
Densifies ballast and subgrade soils to prevent settlement
Utility Trenches
Stabilizes weak soils around pipelines and underground utilities
Bulkheads & Seawalls
Reinforces soils to improve shoreline stability and prevent erosion
Industries & Applications
Deep Injection (UDI) supports infrastructure across industries where soil stabilization and settlement control are critical. From transportation networks to industrial facilities and coastal environments, this method provides fast, durable solutions with minimal operational impact.
Municipal Systems
Municipal Systems
Utilities, stormwater systems, public works
Industrial Facilities
Industrial Facilities
Plants, warehouses, process facilities
Energy & Utility
Energy & Utility
Pipelines, substations, underground facilities
Marine & Coastal
Marine & Coastal
Bulkheads, seawalls, levees
Commercial
Commercial
Retail centers, office parks, multi-family developments
How Our Process Works
1
Investigation
Soil conditions assessed using geotechnical testing and inspection
2
Planning
Injection depths, spacing, and sequencing designed for site conditions
3
Access
Small-diameter steel tubes inserted to design depth with minimal disruption
4
Injection
Expanding polymers placed in staged lifts to densify soils and fill voids
5
Monitoring
Injection pressures and ground response tracked in real time
6
Validation
Post-injection testing verifies improvement in soil strength and stability
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