Microtunneling & Trenchless
Microtunneling & Trenchless Excavation Support
URETEK provides engineered polymer injection and ground improvement support for microtunneling and trenchless pipeline installations. We stabilize launch and receiving shafts, densify soils to prevent settlement and blowouts, and seal groundwater infiltration to create safe, predictable boring conditions. Our methods are compatible with active infrastructure, sensitive utilities, and confined job sites—supporting successful trenchless execution from start to finish.
Applications in Trenchless Construction
Microtunneling (MTBM) and Guided Boring Projects .
Horizontal Directional Drilling (HDD).
Pipe Jacking and Auger Boring .
Utility Relocation and Crossings .
Sanitary, Storm, and Water Mains .
Industrial and Energy Transmission.
Common Issues Resolved
Shaft wall instability and poor soil modulus .
Settlement of roads or structures above alignment.
Groundwater inflow and dewatering challenges .
Unconsolidated soils or karst voids along bore path .
Failure of annular grouting or trench breakers.
URETEK Microtunneling Solutions
Soil Densification: Pre-treats weak or saturated soils at shaft zones and bore path.
Void Filling: Seals karst cavities or unmapped utility voids.
Curtain Grouting: Forms impermeable barriers behind shafts or utility corridors.
Launch Shaft Support: Stabilizes base and walls for excavation and jacking operations.
Trench Breakers: Prevents groundwater migration during or post-install.
Key Advantages for Microtunneling Teams
Fast cure times (minutes) for critical path conditions .
Compatible with sand, clay, peat, and fill soils.
Trenchless and low-footprint application .
Prevents surface disruption and ground loss .
Supports rapid, safe, and clean excavation progress.
Use Cases in Microtunneling and HDD
Pre-treatment beneath roadways and rail crossings .
Shaft stabilization at congested or urban sites.
Water sealing at utility connections and penetrations.
Emergency repair of inflow or collapse zones.
Support for annular grouting and backfill voids.
Cross-links to: Underground Infrastructure, Soil Stabilization, Void Filling, Waterproofing, Utility Infrastructure, Sewer Rehab
Ensure Safe Launch Conditions and Protect the Bore Path
URETEK partners with tunneling contractors, engineers, and municipalities to support successful trenchless infrastructure installations. Contact us for pre-bid recommendations or to schedule a subsurface risk assessment.
Request Microtunneling Support Brief