Helical Piles, Shotcrete

Overcoming Poor Soil-Bearing Capacity

The Paruk Residence is a high end two story structure, located at 24 York Valley Crescent in North York, Ontario, just north of the Don River. A geotechnical investigation performed by Patriot Engineering revealed very poor soil bearing capacity, unsuitable for a slab-on-grade or strip footing foundation.

The floor slab was designed as a structural slab supported on grade beams resting on helical pier foundations. The helical piers were 2-7/8 inch diameter, 55 ksi minimum yield strength, galvanized, and supplied by Ideal Group.
The helical piers were designed for a maximum 30 kips working load, which was achieved at a torque resistance of approximately 9,000 ft. lbs. Using a 17,000 ft. lbs. McMillen drive unit, 94 piers were installed in 3 days.

HCM also did the excavation, perimeter shotcrete shoring and U/S stone placement c/w geotextile, which helped construction access and provided a clean surface for the concrete form work contractor.

Client: HC Matcon
Location: Toronto, Ontario

Grand House

Grand House

Difficult But Not Impossible The Grand House is a student designed and constructed co-operative housing project located in Cambridge, Ontario. It has won awards and is a landmark building. Due

London Mental Health

London Mental Health

London Mental Health – Structural Shotcrete HC Matcon completed a 1,650ft2 structural shotcrete wall in just two days of shooting concrete. The wall had a depth of 0.450m thickness and

Sarcee Trail

Sarcee Trail The foundation of an existing residential apartment building in Southwest Calgary was compromised and required remedial measures to be completed. RWH designed a micropile underpinning system based on

TTC Steels Launch Shaft

TTC Steels Launch Shaft The TTC tendered the Steeles Launch Shaft project as part of the much needed Shepherd subway extension into Vaughan. HCM undertook this project as a general

Smith Residence

Smith Residence

/ Micropiles, Shotcrete

Toronto’s First Permanent Soil Nail Wall This project involved a hillside lot and a high end home in Toronto. The installation was the first permanent soil nail wall used in

Niagara Biosolids Facility - Inside Pit

Niagara Biosolids Facility – Inside Pit

/ Micropiles, Shotcrete, Underpinning

A Shotcrete Solution to a Difficult Problem Work to the existing Biosolids Facility required the installation of deep pits and foundations for proposed processing equipment. Due to the tight confines