Micropiles Soil Remediation

Situation

Environmental clean-up at large car dealership. Extensive structural support into bedrock needed for deep excavation of contaminated soils.

The project’s original design was to use Helical Pull Down Micro-piles with 6″ steel casing. Ultimately, the geology dictated a switch to concrete micropiles. Shore in-house capacity guided a seamless switch between the two approaches.

Strategy and Action

Using their minimal access COMACCHIO MC 400P drill rig and Mitsubishi over burden system air-rotary hammer, Shore installed thirteen 5.5″ concrete micropiles, reinforced with 1.5″ centralizer bar, to a depth of 20ft below grade (6 ft into rock) and extending some piles to 36ft overall.

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About Helical Piles

Applications

Underpinning and Foundation Repair
New Construction Support
Storm-damaged Structure Rehabilitation
Communication Towers
Bridges and Bridge Abutments
Solar Panel Foundations and Mounts
Wind Turbines
Elevator Shaft Foundations
Guy-wire Anchors
Swimming Pools
Heavy Machinery
Large Lighting and Signage
Tieback Anchoring and Retaining Walls
Soil Nailing
Environmental Walkways and Broadwalks

Advantages

Environmentally Friendly
Vibration Free
All Weather
Re-usable
Removable
Fast Installation
Low Noise
Cost Effective
Mobile

Load Testing

Helical pile load testing is necessary for generating a plan for a new project. Engineers use this information to determine the optimal pile foundation. We use a spread of helical pile load tests in order to ensure that the true load testing in pile. Depending on the test, the results can give several options to proceed. While the specific might vary by site, we generally use the ASTM D-1143 and ASTM D-3966 for our deep foundation testing.

About Micropiles

Expert Installation

Despite the name, installing micropiles is no small task. As experienced deep foundation specialists, we’ll guide you through the process of determining what type of work you need, and how to go about getting it done. Whether you already have installation plans, or you are just trying to figure things out, Shore will work alongside you to help get your project done.

Any Site, Any Soil

Micropiles can extend to depths of 200 feet, and achieve workloads of over 200 tons. Micropiles are used to transfer structural load through unsuitable soils. Thus, micropiles are a solution when Helical Piles or other deep foundation methods may not work.

Environmental Advantages

Micropiles are good for environments where minimal vibration is required. It’s an ideal choice for urban environments. Also, due to their flexibility in size, range, and drilling methods, they can be used in ground conditions that could be considered more difficult for other deep foundations.

Micropiles Soil Remediation