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MICROPILE INSTALLATION

The Grouted Helical Micropile system involves the construction of a grout column around the shaft of a standard Helical Pile Foundation System. This grout reinforcement is implemented to enhance the piling capacity in situations where the standard helical pile alone may not meet the project’s capacity requirements.

Drilled helical micropiles find application in scenarios where traditional grade beams or driven pile foundation systems are either impractical or unfeasible. These adaptable deep foundation elements are commonly employed in environments with low headroom, restricted access areas, and locations sensitive to vibrations. Their effectiveness encompasses both new construction and the rehabilitation of existing foundations, offering versatility across various construction environments.

TYPICAL APPLICATIONS FOR MICROPILES

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GULF COAST TOWN CENTER

The construction project involved the implementation of Micro Pulldown Helical piles to support the foundations of the New Courtyard and Center Roundabout. Coastal Foundation Solutions successfully installed thirty-seven micropiles for this undertaking.

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DOLLAR GENERAL

The deep foundation helical piling was a Grouted Micro Pulldown Pile. We installed sixty-eight (68) piling with 50% of the piling in 15-degree batter. The project entailed a combination of Coastal Foundation Solutions unique equipment and helical experts.

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GAF

The engineered loads for this project were exceptionally high 80 tons in compression and 35 tons in tension. Additionally, we were required to pre-drill for helicals due to the dense surface material at the project site prohibiting ground penetration.

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CASA NEOS

Our micro piles provide additional lateral foundation stabilization for new projects in coastal “V” zones. We designed and engineered HELICAL MICRO PULLDOWN PILING for this project due to its “V” zone designations.
Utilizing our state-of-the-art equipment, the team at Coastal Foundation Solutions installed forty-seven (47) micro piles to support the new mezzanine.

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WINDSTAR ON NAPLES BAY

Windstar is a delightful example of all the wonderful joy that make Southwest Florida the destination of choice.
Coastal Foundation Solutions was contracted to provide foundational support for the expansion to the existing Windstar Clubhouse.

The project consisted of installing one hundred-forty-six micro pulldown pilings to 42-foot. The micro piles were load tested to 50 tons in compression.

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BAREFOOT BEACH

With overhead restraints, micro pulldown helicals were the logical choice in delivering the support required for this beachfront home. A static load test was performed utilizing Helical Micro Pulldown Piles, the test piling secured 32 tons in compression and traveled to 34 feet. The installed 5″ grout column provided an additional 8 tons of compressive strength. Our team installed thirty-eight (38) total micro pulldown underpinning piles around the perimeter of the coastal structure.

POSITIVE ASPECTSMICRO PULLDOWN PILING

NO VIBRATIONS/SPOILS

Helical Pulldown Piles offer a disturbance-free installation process, producing neither vibrations nor spoils. This makes them a superb option for projects next to existing structures, ensuring minimal impact on surrounding areas and eliminating the need for additional soil disposal.

TIGHT ACCESS INSTALLATION

In contrast to alternative deep foundation systems, micro pulldown and micro piles necessitate the use of lighter equipment with a smaller footprint, eliminating the need for complicated crane pads at the time of installation.

CONFINED SPACE INSTALLS

Micro Piles offer versatility in installation, accommodating a spectrum of equipment sizes from hand-portable tools to 30-ton excavators tailored to site constraints and project-specific load demands. Fluid options for nearly any install application.

PERFORMANCE IN ELEVATED GROUNDWATER CONDITIONS

The presence of high groundwater poses no hindrance to the installation or load-bearing capacity of grouted helical piles in both compression and tension applications.

VERSATILE DEPTH INSTALLATION

Micro Piles and Helical Pulldown Piles offer the flexibility to be installed at depths ranging from 6 ft. to 120 ft. ensuring access to the appropriate bearing stratum. The modular system allows for seamless extensions, facilitating easy adaptation to achieve the desired depth.

MICROPILESMICRO PULLDOWN

#10 [NEED HIGH CAPACITY INFO & PHOTO HERE PER NOTES]

  • Impressive load-bearing capabilities for compression, tension, and lateral forces
  • Suitable for installation in confined spaces, utilizing compact drilling equipment
  • Ability to penetrate various soil types, and obstacles
  • Minimal vibration and disruption during operation

TEAMWORK | COMMUNICATION | INTEGRITYCHARLIE HEADING (FAMILY)

Having successfully executed over 1200 projects, boasting 38,000 installed helical piles and 8,000 micropiles across Florida, Coastal Foundation Solutions has emerged as a trailblazer in the deep foundation construction industry.

What sets CFS apart is our unwavering commitment to innovative solutions tailored to overcome the complexities of diverse site and soil conditions. Positioned as the unrivaled leader in specialty deep foundations, our unique design-build approach consistently delivers cost saving for clients compared to traditional deep foundation methods.

At the core of CFS’s success lies our foundation built on enduring relationships and trust.

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NO SPOILS

Eco-Conscious: Helical piles offer an environmentally friendly solution by minimizing the need for extensive earthwork or the removal of spoil materials, particularly advantageous in environmentally sensitive areas.

CORROSION PROTECTION

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Selecting the appropriate materials for Helical Pull-Down Piles in coastal regions is of utmost importance. In Florida, where the coastal conditions can be harsh with elevated salinity and humidity, the choice of materials significantly influences the structure’s durability. Materials resistant to corrosion, such as galvanized steel, are the preferred options in such challenging environments.

GROUTED TERMINALS

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Grout casing for helical piling.

Involved Engineering/Design Solutions

GROUTING PROCEDURES

Grouted Helical Micropiles seamlessly integrate the benefits of pre-engineered helical piles into applications demanding elevated pile load capacities. Significantly outperforming their un-grouted counterparts, they exhibit an impressive 30% to 100% additional capacity in depending on soil conditions.

The innovative technique involves the infusion of a flowable and expansive grout while the foundation is screwed into the soil. This process results in the formation of a grouted deep foundation, characterized by a central shaft supporting friction-bearing forces and helical plates providing end-bearing support in substrata.

GRID RENDERING #18

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TORQUE PAD

The torque indicator gauges the twisting force exerted on the pile during the process of screwing it into the ground. For individuals unfamiliar with helical piles, it’s essential to understand that torque is closely linked to the load-bearing capacity of the pile. Failing to measure torque leaves you unaware of the pile’s potential load-carrying capacity.

STATIC LOAD TEST

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Various load tests can be conducted on helical piles to evaluate distinct aspects of their performance. Predominantly, axial compression, axial tension, and lateral load tests are employed for helical piles. These assessments gauge the pile’s ability to withstand downward pressure, upward tension, and lateral forces, respectively.

The choice of load test is contingent upon the specific forces the pile is expected to encounter in its operational environment. Engineers consider factors such as structural loads, soil conditions, and local climate to ascertain the most appropriate methodology for the given circumstances.

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