Our Services
Tunneling and Trenchless Methods
- Temporary work shafts
- Tunnel excavation support and lining
- Soft ground and hard rock tunneling
- Microtunneling
- Rock bolts
- Blasting
- Construction dewatering
- Horizontal directional drilling
- Pilot tube/guided auger boring
- Pipe jacking
- Auger boring
.jpg "Black River Tunnel - Lorain, OH")
Excavation Support
- Cofferdams
- Sinking caissons
- Soldier piling and lagging with tiebacks
- Soil-nailed walls
- Tangent and secant pile walls
- Concrete diaphragm walls
- Deep excavations
- Internally-braced systems
- Sheet piling
- Structural underpinning and pipe support
- Trench box systems
.jpg "South Interceptor Force Main - Omaha, NE")
Earth Retention
- Mechanically-stabilized earth walls
- Gravity walls
- Conventional cantilevered and discontinuous/continuous walls with a one-sided cast-in-place (CIP) structural concrete facing
- Externally-stabilized discontinuous/continuous walls with a one-sided CIP structural concrete facing
- Ground reinforcement
Deep Foundations
- Micropiles
- Driven piles
- Drilled shafts
- Augered cast-in-place piles
- Drilled displacement piles
- Vibration monitoring and analysis
.jpg "Gilboa Low Level Outlet Tunnel - Gilboa, NY")
Specialty Consultation and Design
- Forensic engineering
- Structural mats and rafts
- Seismic site response analysis
- Structural adequacy of steel casing
- Ground improvement and grouting
- Reaction frames for pile testing
- Ground-supported tower cranes
- Dewatering systems
- Noise abatement walls
- Cable barrier systems
- Geotechnical instrumentation
- Slope and embankment stability
- Reinforced soil structures
- Earthen structures
- Landslides
- Rock slope stability
- Three-sided arch culverts
- Pipe support within facilities
- Pre- and post-condition assessments
- Cut & cover structures
Non-Destructive Foundation Testing
- High-strain dynamic pile testing (PDA)
- Pile Integrity Test (PIT)
- Crosshole Sonic Logging (CSL)
- Thermal Integrity Profiling (TIP)
- SPT hammer energy verification
- Vibration Monitoring
.JPG "Madison/Milton Bridge over the Ohio River")