The Collin Group

Innovative Geotechnical Engineering

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    • Geosynthetics
      • HITEC
      • Mechanically Stabilized Earth Walls
      • Reinforced Soil Slopes
      • Embankments Over Soft Soils
    • Ground Improvement
      • Ground Improvement
      • Vibro-Concrete Columns
      • Soil Nailing
      • Column Supported Embankments
      • Rammed Aggregate Piers
      • Deep Mixing Method
      • Stone Columns
    • Excavation Support Systems
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Photos

Vibro-Concrete Columns

  • Click to open image! VCC Installation VCC Installation
  • VCC Installation - Restricted Headroom VCC Installation - Restricted Headroom
  • VCC Load Test VCC Load Test
  • VCC Load Test VCC Load Test
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Rammed Aggregate Piers

  • Click to open image! Rammed Aggregate Pier Installation Process Rammed Aggregate Pier Installation Process
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Column Supported Embankments

  • Click to open image! Installation of Load Transfer Platform Installation of Load Transfer Platform
  • Statnamic Column Load Test Statnamic Column Load Test
  • Auger Cast Pile Installation Auger Cast Pile Installation
  • Auger Cast Pile Installation Auger Cast Pile Installation
  • Installed Columns Installed Columns
  • Typical Plan View - Column Supported Embankment Project Typical Plan View - Column Supported Embankment Project
  • Typical Cross-Section - Column Supported Embankment Project Typical Cross-Section - Column Supported Embankment Project
  • Segmental Retaining Wall Supported on Column Supported Embankment Segmental Retaining Wall Supported on Column Supported Embankment
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Deep Mixing Method

  • Click to open image! Deep Soil Mixing Woodrow Wilson Bridge Deep Soil Mixing Woodrow Wilson Bridge
  • Nine Foot Diameter Deep Mixing Column Nine Foot Diameter Deep Mixing Column
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Stone Columns

  • Click to open image! Stone Column Installation Process Stone Column Installation Process
  • Stone Column Installation Stone Column Installation
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Reinforced Soil Slopes

  • Click to open image! Reinforced Soil Slope _ O'Hare Airport Reinforced Soil Slope _ O'Hare Airport
  • Reinforced Soil Slope - O'Hare Airport Reinforced Soil Slope - O'Hare Airport
  • Reinforced Soil Slope - O'Hare Airport Reinforced Soil Slope - O'Hare Airport
  • Reinforced Soil Slope - O'Hare Airport Reinforced Soil Slope - O'Hare Airport
  • Reinforced Soil Slope - Alabama Reinforced Soil Slope - Alabama
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Soil Nailing

  • Click to open image! Soil Nailing for Temporary Excavation Support Soil Nailing for Temporary Excavation Support
  • Soil Nailing for Temporary Excavation Support Soil Nailing for Temporary Excavation Support
  • Soil Nailing for Temporary Excavation Support Soil Nailing for Temporary Excavation Support
  • First Lift - Soil Nailing First Lift - Soil Nailing
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Excavation Support Systems

  • Click to open image! Hybrid Excavation Support System Soldier Beams and Tiebacks and Soil Nailing Hybrid Excavation Support System Soldier Beams and Tiebacks and Soil Nailing
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Mechanically Stabilized Earth Walls

  • Click to open image! Temporary Mechanically Stabilized Earth Wall Temporary Mechanically Stabilized Earth Wall
  • Temporary Mechanically Stabilized Earth Wall Temporary Mechanically Stabilized Earth Wall
  • Segmental Retaining Wall Segmental Retaining Wall
  • Segmental Retaining Wall Segmental Retaining Wall
  • Typical Segmental Retaining Wall Plan View Typical Segmental Retaining Wall Plan View
  • Typical Segmental Retaining Wall Cross Section Typical Segmental Retaining Wall Cross Section
  •  
  
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7445 Arlington Road, Bethesda, MD 20814

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