Geotechnical Construction
For over 28 years, ENTACT has been committed to the successful creation and implementation of environmental and geotechnical construction solutions. Working with a variety of clients, from industrial to commercial to governmental, we provide the geotechnical expertise to address subsurface scopes. Our industry-leading personnel has the proven experience to complete the most challenging projects, providing a full suite of solutions to expertly manage every detail from start to finish.
Ground Stabilization / Settlement & Liquefaction Mitigation
- Shallow Soil Mixing – Mass Solidification
- Deep Soil Mixing
- Wet & Dry Soil Mixing
- Soil-Cement Columns
- Overlapping Columns
- In-Situ Gravity Retaining Walls
- Shallow Excavator Mixing
- Hydraulic cut-off walls
Barrier Walls (Cut-Off Walls)
- Soil–Mixed
- Soil-Bentonite
- Cement-Bentonite
- Soil-Cement-Bentonite
- Slag Cement—Portland Cement-Bentonite
Earth Retention / Structural Support
- Steel, Vinyl, & HDPE Sheet Pile Walls
- Benching & Sloping
- Trench Box & Slide Rail Systems
- Anchors & Tiebacks
- Soldier Piles & Lagging
- Self-Hardening Slurry Walls
- Auger Cast Piling
- Wet Soil Mixing
- Cement/Slurry Grouting
Slurry Wall Construction
ENTACT has constructed several million square feet of slurry wall for various applications utilizing seasoned field crews and company owned specialty equipment including long reach excavators, extended sticks and booms, slurry mix tanks, silos and pumps. We have experience with slurry wall construction using a variety of materials including native and imported soil, bentonite, cement, slag, and polymers, in various combinations. Our experienced specialty equipment operators and field engineers, supported by our in-house treatability and geotechnical lab, consistently deliver a quality product meeting project requirements and quality control objectives.
Excavation Support Systems
ENTACT work often occurs at depths or locations that require installation of various support systems to ensure the integrity and stabilization of the work area or surrounding structures. We utilize and self-perform benching/sloping, trench boxes, slide rail shoring, and sheet pile installations to allow our work to proceed. When there is a civil construction element that ENTACT cannot self-perform directly we subcontract specialty expertise.
All Services
Geotechnical Construction
- Ground Stabilization/Settlement & Liquefaction Mitigation
- Earth Retention/Structural Support
- Barrier Walls
- Slurry Wall Construction
All Services
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Environmental Remediation
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Geotechnical Construction
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Soil Mixing & Treatment
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Coal Ash Impoundment & Landfill Closure
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Ground Improvement
Environmental Remediation
- Excavation
- Cap & Containment
- Dewatering & Water Treatment
- Decommissioning, Decontamination & Demolition
- Sediment Removal & Wetland Restoration
- Manufactured Gas Plant (MGP) Site Remediation
- Pipeline Abandonment & Removal
- Coal Ash Impoundment & Landfill Closure
- Mine Reclamation & Remediation
- Residential Remediation
- Permeable Reactive Barriers
- Stormwater Management & Erosion and Sediment Controls
Geotechnical Construction
- Ground Stabilization/Settlement & Liquefaction Mitigation
- Earth Retention/Structural Support
- Barrier Walls
- Slurry Wall Construction
Soil Mixing & Treatment
- In-Situ Solidification/Stabilization (ISS)
- Ex-Situ Treatment
- Chemical Fixation
- Chemical Oxidation
- Chemical Reduction
- Bioremediation
- Wet Soil Conditioning
Coal Ash Impoundment & Landfill Closure
- Dewatering and Water Treatment
- Ash Management
- Wet Ash Conditioning
- Landfill Construction
Ground Improvement
- Deep Soil Auger Mixing
- Shallow Excavator Mixing – Mass Solidification
- Wet & Dry Soil Mixing
- Soilcrete Columns
- Soil Improvement Services to Support Tank Pad Construction and Tank Farm Expansion
- Ground Improvement for Plant Expansion
- Ground Improvement for LNG Construction
- Overlapping Columns
- In-Situ Gravity Retaining Walls
