Geotechnical Engineering
Geo-Logic Associates delivers expert geotechnical and geoenvironmental solutions, helping clients navigate complex site conditions with confidence and efficiency.
High Caliber Geotechnical Expertise
Internationally recognized experts lead our practice, delivering innovative, yet practical solutions for complex challenges of geotechnical engineering.
Service Leader
Water retention, conveyance, and infiltration systems
Reliable water infrastructure depends on thoughtful planning, sound engineering, and designs that perform efficiently for decades to come. Our multidisciplinary team helps clients plan, design, rehabilitate, and manage dams, reservoirs, levees, conveyance systems, and infiltration facilities with solutions that are practical, resilient, and cost-effective.
Services include:
- Earthfill and rockfill dam, dike, levee, and reservoir engineering
- Geosynthetically lined water conveyance, storage, and infiltration system design
- Slurry walls (soil-bentonite / soil-cement-bentonite cutoff walls) design
- HDPE barrier walls (impacted groundwater and methane) design
- Permeable reactive barriers / zero valent iron (ZVI) walls
- Seepage cutoff walls
Earthquake engineering
Geo-Logic Associates provides expert earthquake engineering services for dams, levees, solid and hazardous waste landfills, Superfund sites, pipelines, vertical construction, and other critical infrastructure. We offer:
- Paleoseismic evaluations
- Specialty site characterization
- Seismic hazard analyses and development of design ground motions
- Soil liquefaction evaluation
- Evaluation of soil liquefaction impacts
- Site response analyses
- Seismic stability and deformation analyses
- Development of remedial measures against soil liquefaction
Beneficial redevelopment of Brownfield sites
Geo-Logic Associates is a recognized leader in Brownfields redevelopment, with experience on more than 200 successful projects and contributions to EPA guidance documents that help shape industry best practices.
- Planning and performing site investigations
- Mitigation development
- Closure design
- Permitting of Brownfields sites
Earth retaining structures and excavation support
Geo-Logic Associates provides comprehensive services for earth retaining structures and excavation support, from planning and permitting through design, construction oversight, and long-term performance monitoring.
Services include:
- Gravity retaining walls
- Mechanically Stabilized Earth (MSE) walls
- Sheet pile walls
- Conventional lagging and tieback soldier pile walls
- Excavation stabilization by soil nailing and/or rock bolts and anchors
Foundation engineering and ground improvement
Internationally recognized geotechnical specialists develop dependable, cost-effective foundation solutions for challenging sites where subsurface conditions are critical to project success.
- Designing shallow and deep foundation systems in non-routine and problematic soils, such as municipal solid waste (MSW) and peat bogs
- Developing and implementing soil improvement measures against compressible, liquefiable, expansive, and collapsible soils
Geohazard mitigation
Combining drone technology, GPS-enabled field investigations, and geologic expertise, our team develops detailed site models and practical solutions to complex geohazard challenges.
- Drone-based geologic mapping of bedding, faulting, and folding
- GPS-supported assessment of landslide complexes and defining parameters
- Geotechnical hazard characterization using field-generated data
- Development of detailed site models for engineering and design
- Numerical modeling of fault-rupture propagation and its impacts
- Slope-stability assessment and analysis
- Siting support for critical infrastructure using value-added methodologies
Geotechnical laboratory services
Reliable geotechnical testing provides the foundation for informed engineering decisions and successful project outcomes. Through four full-service accredited laboratories, our team delivers accurate, standards-based testing supported by advanced equipment, rigorous quality assurance practices, and oversight from licensed professional engineers. Testing includes:
- Soil classification
- Moisture-density relationships
- Soil shear strength (direct and triaxial)
- Hydraulic conductivity
- Moisture retention
- Geosynthetics and interface testing
- Amended soil testing
- Concrete, masonry, mortar, and grout testing
- Asphaltic concrete testing
- Custom field testing
Water retention, conveyance, and infiltration systems
Reliable water infrastructure depends on thoughtful planning, sound engineering, and designs that perform efficiently for decades to come. Our multidisciplinary team helps clients plan, design, rehabilitate, and manage dams, reservoirs, levees, conveyance systems, and infiltration facilities with solutions that are practical, resilient, and cost-effective.
Services include:
- Earthfill and rockfill dam, dike, levee, and reservoir engineering
- Geosynthetically lined water conveyance, storage, and infiltration system design
- Slurry walls (soil-bentonite / soil-cement-bentonite cutoff walls) design
- HDPE barrier walls (impacted groundwater and methane) design
- Permeable reactive barriers / zero valent iron (ZVI) walls
- Seepage cutoff walls
Earthquake engineering
Geo-Logic Associates provides expert earthquake engineering services for dams, levees, solid and hazardous waste landfills, Superfund sites, pipelines, vertical construction, and other critical infrastructure. We offer:
- Paleoseismic evaluations
- Specialty site characterization
- Seismic hazard analyses and development of design ground motions
- Soil liquefaction evaluation
- Evaluation of soil liquefaction impacts
- Site response analyses
- Seismic stability and deformation analyses
- Development of remedial measures against soil liquefaction
Beneficial redevelopment of Brownfield sites
Geo-Logic Associates is a recognized leader in Brownfields redevelopment, with experience on more than 200 successful projects and contributions to EPA guidance documents that help shape industry best practices.
- Planning and performing site investigations
- Mitigation development
- Closure design
- Permitting of Brownfields sites
Earth retaining structures and excavation support
Geo-Logic Associates provides comprehensive services for earth retaining structures and excavation support, from planning and permitting through design, construction oversight, and long-term performance monitoring.
Services include:
- Gravity retaining walls
- Mechanically Stabilized Earth (MSE) walls
- Sheet pile walls
- Conventional lagging and tieback soldier pile walls
- Excavation stabilization by soil nailing and/or rock bolts and anchors
Foundation engineering and ground improvement
Internationally recognized geotechnical specialists develop dependable, cost-effective foundation solutions for challenging sites where subsurface conditions are critical to project success.
- Designing shallow and deep foundation systems in non-routine and problematic soils, such as municipal solid waste (MSW) and peat bogs
- Developing and implementing soil improvement measures against compressible, liquefiable, expansive, and collapsible soils
Geohazard mitigation
Combining drone technology, GPS-enabled field investigations, and geologic expertise, our team develops detailed site models and practical solutions to complex geohazard challenges.
- Drone-based geologic mapping of bedding, faulting, and folding
- GPS-supported assessment of landslide complexes and defining parameters
- Geotechnical hazard characterization using field-generated data
- Development of detailed site models for engineering and design
- Numerical modeling of fault-rupture propagation and its impacts
- Slope-stability assessment and analysis
- Siting support for critical infrastructure using value-added methodologies
Geotechnical laboratory services
Reliable geotechnical testing provides the foundation for informed engineering decisions and successful project outcomes. Through four full-service accredited laboratories, our team delivers accurate, standards-based testing supported by advanced equipment, rigorous quality assurance practices, and oversight from licensed professional engineers. Testing includes:
- Soil classification
- Moisture-density relationships
- Soil shear strength (direct and triaxial)
- Hydraulic conductivity
- Moisture retention
- Geosynthetics and interface testing
- Amended soil testing
- Concrete, masonry, mortar, and grout testing
- Asphaltic concrete testing
- Custom field testing
