Geotechnical

 

SCI provides a single point of contact for a wide range of geotechnical services including field explorations, laboratory testing, and foundation and site development recommendations. Our services are highly sought after by architectural and engineering design professionals, public agencies, commercial and residential developers, and the construction industry. Our geotechnical engineers and geologists have extensive experience with the varied subsurface conditions encountered across the Midwest and are always looking for innovative ideas to provide cost effective solutions for your project. We contract with multiple drilling firms and can mobilize several rigs to the site to expedite the exploration phase.

Geotechnical Services include:
– Foundation Analysis and Design
– Earth/Rock Embankment Design
– Slope Stability Analysis
– Earth Dam/Levee Design
– Soil Borings and Rock Coring
– Retaining Wall Design
– Soil Stabilization
– Geophysics
– Pavement Design
– Geologic Studies
– Excavation/Shoring Design
– Earthquake/Seismic Engineering
– Ground Water Studies
– Failure Analysis

 

The technical staff of geotechnical engineers at SCI are trained to respond to a wide range of soil related issues that may occur during an emergency situation. These include:
– Failure Analysis and Corrective Action Recommendations
– Soil Stabilization, Slopes and Sinkholes
– Retaining Walls and Foundations
– Streambank Instability/Collapse
– Dams and Levees
– Post Earthquake Stabilization (liquefaction)

Geophysical

With today’s advanced geophysical imaging technologies, engineers have much more information available to them about subsurface conditions than they previously had through traditional boring and test pitting. These innovative and generally non-invasive techniques enhance SCI’s geotechnical services. They provide additional data for analysis and evaluation and, in many cases, save time and money. Geophysical imaging techniques can be used independently or in conjunction with other methods to provide supplemental information for a wide range of projects. SCI Senior Geophysicist Dr. Neil Anderson states, “What tool is the most effective in a particular situation depends on quite a few variables. We need to consider what the ultimate deliverable will be; what the immediate environment looks like; the size, depth, and physical properties of the target; and so forth.”

For example, several geophysical technologies have practical applications for transportation departments and are being used for many exploratory activities, such as:
• Inspecting bridge decks and pavements
• Identifying deteriorating rebar in concrete
• Locating underground utilities
• Mapping the top of groundwater or bedrock
• Finding subsurface voids

Laboratory Testing

SCI’s laboratories in Missouri and Illinois are overseen by a Corporate Quality Assurance Manager. The laboratories staff seven full-time and eight part-time engineering technicians and are validated by the USACE and AASHTO accredited.

The benefits of selecting SCI to provide laboratory services include:
• Quick Turn-Around/Ability to Meet Tight Deadlines
• Ability to Develop New Tests to Accommodate Client Needs
• Pickup/Drop-off Services
• Multiple Drop-off Locations
• Most Delivery Formats Provided
• Competitive Rates/Volume Pricing

Soil Laboratory Testing Services:
• Index Properties and Classification
• Grain Size Distribution
• Strength Parameters
• Hydrometer
• Standard & Modified Proctor
• Volume Change Tendencies (Swell)
• Permeability
• Consolidation Characteristics
• California Bearing Ratio
• Relative Density

SCI currently has the necessary equipment, licenses, and trained staff to perform the following tests in accordance with applicable ASTM and AASHTO standards:
• Direct Shear
• Triaxial Strength
• Consolidation/Swell
• Hydraulic-conductivity
• High Volume Index Testing
• Pervious Concrete Cylinder Permeability
• Recycled Concrete Aggregate Testing