Anchor & Micropile Drilling

Our Foundations services include:

Mini Rig Drilling

We work closely with experienced subcontractors who come in after we complete our initial lift of shotcrete to perform aesthetically pleasing architectural finishes.

Excavator-Mounted Drilling

Excavator-mounted drills are highly effective for drilling in hard-to-reach places. These drills are primarily used to drill tie-backs using a high-powered percussion head. They can also be equipped to drill using cased methods as required. The units can be mounted on a variety of excavator carriers to suit individual project requirements.

Low Headroom Micropiling

Similar to our fleet of mini rigs, our low headroom rigs can access restricted work areas. These rigs come with more power, options and capability. They can drill bigger diameters and deeper depths, similar to their full-size counterparts. The mid-size rig pictured here is equipped to install casing up to 14 inch diameter within an overhead restriction of 13 feet.

 Tie Backs

Our diverse fleet of equipment is capable of installing tie backs or soil nails to any retaining wall.

• Cast-In-Place Walls
• Diaphragm Walls
• Secant Walls
• Shotcrete Walls
• Sheet Pile Walls
• Deep Soil Mixing Walls
• Existing Parkade Walls

Anchor Testing and Lockoff

We own, maintain, and regularly calibrate high quality anchor testing equipment which can be tailored to meet specific job requirements. We have experience and knowledge to perform proof, performance, design, or verification tests to meet the requirements of the following standards:

• PTI DC3531-14 – Post Tensioning Institute – Recommendations for Prestressed Rock and Soil Anchors
• FHWA NHI-05-039 — Federal Highway Administration – Micropile Design and Construction
• Canadian Geotechnical Society – Canadian Foundation Engineering Manual

Micropiles

Micropiles are used in tension or compression to support foundations. Commonly utilized for seismic retrofits of existing structures or where restricted access limits the use of larger piling equipment. Micropiles, depending on ground conditions and performance specifications, may utilize any of the following techniques:

• Temporary Casing
• Permanent Casing
• Threadbar
• Dual-Corrosion Protection
• Bearing Plates
• IBU Self-Drilling Bar
• Strands

Standard Micropiles can be installed at diameters from 3 to 10 inches and beyond, with a design load of up to 350 tons.