INNOVATIVE DESIGN SOLUTIONS
Terrapex’s Geotechnical Engineering division, formerly known as Alston, has developed innovative design solutions for ground engineering applications including slope stabilization, landfill liner design and installation, and geotextile reinforced engineered fills.
Alston has demonstrated time after time that if there is a value engineering solution, we will find it.
SLOPES & EMBANKMENTS
- Design of Cuts & Earthfills
- Slope Stability Assessment
- Slope Reinforcement
- Base Reinforcement
- Erosion Protection
- Slope Stabilization
- Mine Tailings Dams
- Water Retaining Earth Berms
SHALLOW & DEEP FOUNDATIONS
- Evaluation of Soil Bearing Capacity
- Settlement Analysis
- Deep Foundations including Push, Helical, Driven & Auger Injected Piles & Drilled Shafts
- Support to Existing Foundations including Underpinning
- Evaluation of Earth Pressures
PAVEMENTS
- Pavement Design for Highways, Airports, Light & Heavy Vehicle Usage, Parking Lots
- Pavement Condition Surveys
RETAINING WALLS
- Engineering Design of Mechanically or Gravity Stabilized Earth Walls
- Detailed Computer Software Analysis
- Preparation of Construction Drawings
GROUND IMPROVEMENT
- Geosynthetic & Soil Nail Reinforcement
- Surcharge Loading
- Deep & Rapid Impact Compaction Grouting
FACILITY CONTAINMENT
- Clay Liners
- Polymeric Membranes
- Sand Bentonite Liners
- Soil & Cement Bentonite Slurry Walls
UTILITIES INFRASTRUCTURE
- Buried Construction – Trenches & Tunnels
- Pipe Jacking
- Pipe Bedding
- Trench Backfill