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

LRT Slope Protection at Retaining Wall

LRT Slope Protection at Retaining Wall

LRT Slope Protection at Retaining Wall HC Matcon (HCM) and RWH Engineering (RWH) reacted quickly after being contacted to provide a design-build solution for a slope failure that occurred during

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

Bluwater Condominiums

Bluwater Condominiums

The Pemberton Group is adding the luxury waterfront Bluwater Condominiums to its portfolio. The 22,000 SF area of shoring area will accommodate the construction of three eight-story buildings on the

CN Malton GO Station

CN Malton GO Station

Challenge: Build While Trains Are Running Work on the Malton GO Station in Toronto, Ontario includes improvements such as new walkways and a tunnel for pedestrian access to new platforms.

Wal-Mart Micropiles

Wal-Mart Micropiles

Overcoming Poorly Engineered Fill This project solved a very difficult problem for Buttcon and Walmart Canada, with the new footings settling on a poorly done engineered fill. The previous winter

TTC Wilson Complex Modification

TTC Wilson Complex Modification

/ Micropiles, Shotcrete, Soldier Piles & Lagging, Underpinning

Engineering Solutions The Toronto Transit Commission will be purchasing all new subway cars in the near future, creating the requirement of larger maintenance carhouses. The original contract drawings employed caisson