Geotechnical Engineering

CEC provides consulting geotechnical engineering services to industry, architects, developers, and contractors. We have performed geotechnical investigations to determine foundation and retaining wall design parameters, investigate mine subsidence and landslides, develop site grading requirements, investigate foundation failures, and analyze and design pavements. We also provide construction-monitoring services; field testing of earthwork, foundations, and retaining walls; and landslide stabilization construction.

Subsurface Investigation and Laboratory Testing

CEC has extensive experience developing subsurface investigations and geotechnical laboratory testing programs tailored to meet our clients' needs. We are experienced with the use of subsurface investigation methods, including test drilling, in-situ testing, borehole photography/video, and geophysical logging. Our professional staff of engineers and geologists has diverse experience monitoring investigations and field classifying materials. CEC develops site-specific laboratory testing programs to determine soil and rock parameters required for geotechnical analyses and design. Testing is selected based on the end use of the data and routinely includes classification, plasticity, shear strength, consolidation, and compaction testing.

Geotechnical Analysis

CEC performs a wide range of geotechnical analyses including bearing capacity, settlement, slope stability, seepage, and pavement evaluation and design. We have a large selection of computer software and maintain access to several on-line databases, enabling CEC to efficiently analyze alternatives to optimize designs and provide our clients with cost-effective geotechnical construction. Our capabilities also include the analysis and design of alternative retaining wall and reinforced earth systems, and the preparation of construction documents.

Mine Subsidence Investigations

Numerous coal seams in the eastern United States have been deep mined. Abandoned deep mine workings often present a risk of structural damage due to subsidence. By utilizing subsurface investigation techniques, reviewing available mine maps, and evaluating geotechnical parameters, CEC estimates the risk of mine subsidence and, if necessary, makes recommendations to reduce those risks. CEC is also experienced in designing mine and structure stabilization measures, preparing construction documents, and managing construction for the stabilization work.

Construction Monitoring

CEC provides clients with experienced construction technicians for monitoring fill placement, earthwork operations, foundation installation, landslide and deep mine stabilization, pavement installation, and utility and retaining wall construction.