Foundation & Infrastructure Support
Specialized foundation support services including micropiles, underpinning, and ground improvement for structures on challenging soil, settling foundations, and infrastructure requiring enhanced capacity.
Understanding Foundation & Infrastructure Support
Foundation support requires understanding why existing foundations are failing and designing systems that provide permanent solutions. Our approach combines geotechnical investigation to identify ground conditions with specialized installation techniques that work in challenging access situations.
Micropiles are our most versatile underpinning solution, small-diameter drilled piles that develop high capacity through friction in dense soil or rock bond. Our low-headroom drill rigs work in basements with only 6 feet of clearance, allowing micropile underpinning inside existing structures. Piles can handle loads up to 500 kips and work in any soil or rock condition.
Tieback anchors provide lateral support for foundations affected by slope movement or overturning loads. High-capacity PTI-certified anchors resist forces up to 500 kips while maintaining structure stability during construction. Rock anchoring secures structures to bedrock for seismic and wind load resistance.
Pressure grouting fills voids beneath foundations and improves surrounding soil. Compaction grouting densifies loose soils; permeation grouting stabilizes granular materials; compensation grouting can even lift settled structures back toward original grade.
For foundations threatened by adjacent excavation or slope movement, soldier pile walls provide earth retention during construction. Horizontal drains address groundwater that may be contributing to settlement or instability.
Specialized applications include dam and spillway stabilization using tensioned anchors and grouting, bridge pier rehabilitation with micropile groups, and historic building preservation requiring minimal vibration and maximum care. Our drilling capabilities handle any ground condition from soft alluvium to granite.
When Foundation Support Is Needed
You may require foundation stabilization or improvement when you notice: settlement or cracking in structures; tilting or rotation of retaining walls; soil loss or void formation beneath slabs or footings; groundwater infiltration or erosion undermining support; increased loading from new construction or road widening; slope movement affecting foundations; or pavement deflection or subsurface voids. Early intervention prevents costly structural damage and safety risks.
Without proper intervention, these conditions typically worsen over time. Early assessment and appropriate remediation can prevent costly emergency repairs and protect the assets and people that depend on stable ground.
Common Causes
- Weak, compressible, or collapsible soils
- Undetected voids or subsurface erosion
- Groundwater pressure and poor drainage
- Overloading or design-life exceedance
- Seasonal moisture changes or frost heave
- Construction vibration or excavation nearby
- Slope movement affecting foundations
- Bearing capacity failure in weak ground
- Deterioration of original foundation materials
- Seismic damage to foundation elements
Restoring Foundation Integrity
We approach foundation problems systematically, first understanding why the foundation is failing, then designing solutions that address root causes while providing lasting support. Our techniques work in any soil condition and can be installed with minimal disruption to occupied structures.
Foundation Assessment
Document existing conditions including crack patterns, settlement measurements, structural distress, and drainage issues. Assessment identifies the failure mechanism and establishes baseline for measuring repair effectiveness.
Subsurface Investigation
Borings and soil testing determine soil properties, depth to competent bearing material, and groundwater conditions. This data is essential for designing underpinning systems that will perform long-term.
Engineering Design
Engineers analyze existing loads, required capacity, and installation constraints to design the optimal foundation support system. Design considers access limitations, vibration sensitivity, and construction sequence.
Deep Foundation Installation
Micropiles, helical piles, or driven piles are installed adjacent to or through existing foundations. Piles extend to competent bearing strata, developing capacity through end bearing, side friction, or both.
Load Transfer
Structural connections transfer loads from existing foundations to new piles. Connections may include pile caps, brackets, grade beams, or direct attachment depending on foundation type and access.
Verification & Monitoring
Load testing verifies pile capacity meets design requirements. Monitoring tracks settlement and confirms stabilization. Documentation provides records for owner, engineer, and insurance purposes.
How We Deliver
Our field services deliver comprehensive solutions tailored to your specific site conditions and requirements.
Why Choose Rock Supremacy
Techniques We Use
Proven engineering methods that deliver long-term stability and protection.
Cable Anchors
Cable anchors are post-tensioned multi-strand prestressed anchors that drill deep into competent rock or dense soil, develop bond along a fixed-length zone, and are stressed to lock in 200 to 2000 plus kips of holding load. They are the high-capacity end of the post-tensioned ground anchor family, used for dam abutment stabilization, large rock-mass tie-down, deep landslide remediation, and the foundation anchoring of high-energy rockfall barriers.
Foundation Underpinning
Load-transfer technique that carries existing foundation loads past failing soil into deeper bearing strata or anchored ground. Includes micropile underpinning, battered soil anchors, and foundation tie-backs.
Epoxy-Grouted Dowels
Epoxy-grouted dowels are a resin-bonded variant of rock dowels in which two-part structural epoxy or polyester resin replaces cement grout. Resin systems reach handling strength in minutes and full bond in hours, making them the dowel of choice for emergency stabilization, mining production cycles, and post-installed adhesive anchors in concrete.
H-Pile Walls
H-pile walls use rolled steel HP-section beams with lagging between the flanges to retain deep excavations, bridge abutment cuts, and permanent infrastructure walls.
Horizontal Drains
Horizontal drains are slightly upward-inclined drilled drains (50 to 500 plus ft, 2 to 4 inch slotted PVC or HDPE) installed into a slope or embankment to lower the groundwater table and relieve the pore pressure that drives landslide movement. Standard slope-drainage tool per TRB Special Report 247 and FHWA-NHI-08-097.
Micropile Underpinning
Micropile underpinning strengthens or replaces an existing foundation by transferring load to deeper bearing strata through small-diameter drilled-and-grouted piles, allowing settled or undersized foundations to be repaired without demolishing the structure above.
Micropiles
Micropiles are small-diameter, high-strength deep foundation elements used to transfer loads into competent ground. Their versatility makes them ideal for underpinning, slope stabilization, and situations with limited access or difficult geology.
Pressure Grouting
Pressure grouting injects fluid grout into soil pores, rock fractures, or open voids to densify loose ground, seal water pathways, fill cavities, and lift settled foundations. Compaction, permeation, fracture, and chemical grouting variants address different host-ground conditions.
Rock Bolting
Rock bolting stabilizes fractured, jointed, or unstable rock masses by anchoring steel bars deep into competent rock. By tying loose blocks back to stable substrate, rock bolts improve the overall strength and cohesion of slopes, cuts, tunnels, and vertical faces.
Soldier Pile Walls
Soldier pile walls are proven earth retention systems for stabilizing deep excavations and steep slopes. Steel beams installed at intervals with lagging placed between them provide flexible, economical support that adapts to site constraints.
Structural Shotcrete
Structural shotcrete is pneumatically applied concrete engineered to carry computed structural loads, used for soil nail wall facings, tunnel primary and final linings, dam and spillway rehabilitation, and permanent retaining walls. ACI 506 family specifications govern design, placement, and acceptance testing.
Tieback Anchors
Tieback anchors are post-tensioned ground anchors that drill through a wall facing into competent soil or rock, develop bond along a deep fixed length, and are stressed to lock in 100 to 600 plus kips of holding load. They provide the active lateral restraint behind soldier pile walls, secant pile walls, foundation tie-ins, and dam abutments where passive systems would not develop adequate capacity.
Weep Drains
Weep drains are short through-facing drainage outlets that discharge water trapped behind retaining walls, MSE walls, soldier pile walls, and shotcrete-faced soil nail walls before hydrostatic pressure can drive facing detachment, wall tilt, or freeze-thaw damage. Standard detail per AASHTO LRFD §11.10.8.
Industries Impacted
We serve these sectors with specialized expertise in their unique challenges and regulatory requirements.
Our Work
See how we've delivered this solution for clients across the country.
I-70 Corridor Stabilization
Installed 50,000 sq ft of high-tensile mesh and performed extensive scaling after a major weather event.
Lava Hot Springs Slope Stabilization
Multi-phase slope stabilization project protecting the historic hot springs resort and Highway 30 from an active landslide.
Moffat Subdivision Railroad Stabilization
Large-scale railroad stabilization project with over 10,000 linear feet of drilling to secure train tracks entering the historic Moffat Tunnel.
Foundation & Infrastructure Support FAQ
Our Service Area
Rock Supremacy operates from strategic bases in Oregon and Tennessee, giving us coast-to-coast reach with direct access to the western mountains, central corridors, and the southeastern rockfall hot zones. Our teams are licensed, equipped, and trained to mobilize anywhere in the Lower 48, Alaska, Puerto Rico, Canada, and the Caribbean.
If rock is moving, sliding, cracking, sloughing, or threatening a critical asset, we can be on-site within 48 hours for emergency response. Our crews arrive with the equipment, engineering support, and shotcrete/ground-stabilization systems required to stop the problem, not just manage it.
Where We Work
- United States: Lower 48 + Alaska
- Territories: Puerto Rico
- International: Canada + Caribbean
- Remote and rugged access
Our Strategy
- Two operational bases
- Rapid emergency dispatch
- Certified technicians
- Full-scale capability on arrival
Western Division (HQ)
Eastern Division
About Rock Supremacy
Rock Supremacy is North America's premier geotechnical contractor specializing in rockfall mitigation and slope stabilization. Our team combines technical expertise with uncompromising safety standards.
From the steep canyons of Colorado to the coastal bluffs of California, we've developed proven methodologies for stabilizing slopes and protecting critical infrastructure. Our crews are trained to work in the most demanding vertical environments.
Our Safety Record
We maintain a safety-first culture because we believe every worker deserves to go home safe at the end of the day. This commitment to safety has earned us the trust of DOTs, mining companies, and energy providers across the country.
All crew members receive ongoing training in high-angle rescue, fall protection, and hazard recognition. We conduct daily safety briefings and maintain rigorous equipment inspection protocols.
Client Testimonials
Trusted by DOTs, engineering firms, and property owners nationwide.
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