Past Projects

To supplement the information gathered from the desktop review and to assess the soil and groundwater conditions at the site, we complete a subsurface exploration program. The subsurface exploration consist of: 

• Backhoe / excavator test pitting
• Auger drilling and sampling
• Sonic drilling and sampling
• Falling Head and Constant Head percolation testing
• Standpipe piezometer / inclinometer installation
• Wildcat penetrometer testing
• DCPT and SPT testing
• Down-hole seismic shear wave velocity measurements
• Cone Penetration Testing (CPT)
• Soil resistivity testing

Our understanding of geological structures, materials and processes, ground-structure interaction, and construction technologies, combined with the systematic application of investigative, scientific, engineering, and risk management techniques provide practical solutions to ground related issues.  

• Shallow and deep foundation (pile) design
• Retaining wall design
• Groundwater seepage analysis
• Preparation of site-specific ground response spectra 
• Soil liquefaction triggering analysis 
• Ground Improvement

We work closely with our clients to identify and characterize hazards on the ground, establish risk scenarios and assess associated risks.   Investigations can include the assessment of the risk to humans, property and the environment from natural hazards such as earthquakes, landslides, sinkholes, soil liquefaction, debris flows and rockfalls. 

• Slope stability analysis
• Slope stabilization design
• Rock fall analysis
• Slope monitoring

Excavation shoring is typically required to retain soils adjacent to deep excavations to either facilitate new construction or other earth retention applications and to provide a safe work environment for construction crews. 

 Proper shoring installation will ensure the building remains structurally sound throughout construction.

• Soil Nails and Shotcrete
• Pressure / Chemical Grouting
• Lock Block retaining walls 

We provide quality control (QC) testing services for construction projects including Materials Testing and instrumentation monitoring.  

During site preparation and construction, we will review geotechnical field works in order to confirm the ground conditions are as expected, and that the work undertaken is in general accordance with the intent of the  Geotechnical Engineer of Record is   recommendations. 

• Review temporary unsupported excavation slopes 
• Review stripped and prepared subgrades prior to placement of geotextile, and engineered fill or construction of the slab
• Review and acceptance of engineered fill
• Review placement and compaction of engineered fill
• Review soil conditions at foundation grade prior to the construction of foundation formwork
• Review of placement and compaction of under-slab fill, prior to construction of grade-supported slab