Geotechnical Services



Ground Investigation

BOA has an extensive experience on Ground Investigation to investigate ground and groundwater which is to be affected by the proposed developments.

Followings are BOA’s capability on Ground Investigation:

  • Desk Study
  • Geological mapping
  • Walkover, drive-over and Flyover Surveys
  • Aerial Photo and digital image interpretation
  • Planning, supervision and interpretation of geophysical survey for geological profiling
  • Seismic reflection and refraction
  • Resistivity survey
  • Electromagnetic survey
  • Planning and supervision of geotechnical and geoenvironmental Drilling and Coring, water well drilling and Filed Investigation
  • Test Pitting
  • Trenching
  • Hollow and solid Auguring
  • Continuous Flight Auguring
  • Percussive drilling
  • Rotary direct Circulation with water, air, foam and fluid flush methods
  • Rotary Reverse Circulation with water, air, foam and fluid flush methods
  • Down the hole hammer
  • In-situ testing and interpretation
  • Standard Penetration Test
  • In-situ Field Vane Shear Test
  • Cone Penetration Test with pore pressure measurement and seismic testing
  • Dilatometer Test
  • Menard pressuremeter, Self-boring pressuremeter and cone pressuremeter testing
  • Auto Ram Sounding & Dynamic cone Tests
  • Crosshole and Downhole Seismic Tests
  • In-situ Falling, Rising and Constant Head Tests
  • BAT Permeameter Test
  • Geophysical logging
  • Pumping Tests
  • Constant Discharge Test
  • Recovery TestStep Drawdown TestRock Packer Testing both Single and Double Packer Disturbed
  • Sampling
  • Undisturbed Sampling
  • Piston Sampling
  • Twist Sampling
  • Geo-environmental Sampling
  • Groundwater sampling


Design and Analyses

  • Shallow and Deep Foundations
  • Embankment and Slope Stability
  • Excavation and Retaining Wall Designs
  • Settlement Analyses
  • Reinforced Wall Design
  • Tunnel and Underground Structure Designs
  • Shore Protection and Erosion Protection Designs
  • Dam and tailing Dam Design
  • Open Pit Design
  • Rigid and Flexible Pavement designs
  • Ground Improvement Design
  • Preloading
  • Preloading with Wick Drain
  • Vacuum Preloading
  • Electro-Osmosis Consolidation
  • Stone, Lime and Cement Columns
  • Soil Mixing
  • Ground Engineering Design
  • Ground Anchor and Tie-back designs
  • Slope Stabilization and Soil Nail design
  • Grouting and Grout curtain design
  • Contaminated Land Assessment
  • Impermeable and Hydraulic Barrier Designs
  • In-situ contaminated soil treatment Design
  • In-situ contaminated groundwater treatment Design
  • Water Balance Study
  • Geotechnical Instrumentation Design


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