Terrapex Environmental Ltd.
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Geotechnical Engineering Service

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Design of cuts and earthfills.Evaluation of stability of existing slopes.Slope reinforcement using geotextiles, geogrids, soil nails.Base reinforcement to support earthfills on soft subgrade soils.Erosion protection using geocells matting, rip rap.Stabilization of unstable slopes.Mine tailings dams.Water retaining earth berms

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Foundations

  • Evaluation of soil bearing capacity to support footing foundation
  • Settlement studie
  • Deep foundations including driven piles, drilled shafts ("caissons"), auger injected (CFA) piles
  • Additional support to existing foundations by underpinning utilizing concrete panels, grouting, micropile
  • Evaluation of earth pressures on retaining walls, security of excavation base, tieback support, etc.

Pavements

  • Thickness designs for pavements for major and minor highways, airport runways end taxiways
  • Condition surveys of existing pavements
  • Pavements for vehicle parking, truck usage and heavy industrial container loads

Ground Improvement

  • Geosynthetic and soil nail reinforcemen
  • Surcharge loadin
  • Stage construction
  • Grouting

Facility Containment

  • Clay liner
  • Polymeric membrane
  • Sand bentonite liner
  • Soil bentonite and cement bentonite slurry walls

Municipal Sector

  • Investigations for buried service construction including trenches, tunnels
  • Pipe jacking
  • Pipe bedding
  • Suitability of native soils for trench backfill

Inspection and Testing

  • Engineered fills, granular base
  • Subgrade approva
  • Excavations and shorin
  • Earthworks
  • Aggregate selection
  • Monitoring of ground movements
  • Installation of deep foundations
  • Ground reinforcement