Skip to content

Graham Residence

  • Shotcrete

 Residential Shoring: Complex Design Requires Innovation

A retaining wall was required to accommodate the architectural design for a private residence. The site topography presented the General Contractor (Builder) with the challenging task of constructing a retaining wall structure into a steep hill on a residential lot in the Mount Royal area of Calgary, Alberta. To accommodate the residence, extensive shoring was required along the property lines and the back alley of the site.

  • The retaining wall was designed by T.H. O’Rourke Structural Consultants Inc. as a Tied-back Shotcrete Shoring Wall with its excavation depths ranging from between 6.0m to 12.0m below-grade.
  • The length of the shoring wall is approximately 87.0 lin. metres with a total of 382 square metres of exposed surface area. The shoring design also reflects the structural Engineer’s requirement for a permanent retaining wall at the back of the property (deepest excavation).
  • In addition, the client accepted HCM’s proposal to provide monitoring of the permanent wall, which included the supply and installation of inclinometers and their subsequent reading for the duration of one year.
  • HCM completed the soil nailing operations with a TEI drill mounted on an excavator hoe.
  • The project required precision in placing the shotcrete shoring along the contour of the building envelope as a significant amount of the shoring was adjacent to the property’s steep slope.
  • Also, special emphasis was put on the sensitivity of the entire project with respect to neighboring properties, minimizing disruption, noise and vibrations to existing structures.

HCM Contractors finished this project on schedule and to the complete satisfaction of the Builder and Owner.

Client: Wiens and Company
Location: Calgary, Alberta

McMaster Nuclear Building

/ ,
McMaster Nuclear Building The nuclear research building was an upgrade to the existing structure to allow for world class nuclear research for leading nuclear scientists.  This project was funded by
Read More

Maxwell Bates

/
Maxwell Bates This project, located on Fourth Street in the downtown core of Calgary, consisted of a tied-back continuous caisson wall.  The caisson wall provided zero ground loss and minimal
Read More
Guelph Civic Administration Complex

Guelph Civic Administration Complex

/ , ,
Complex Shoring Requires Innovative Design Work on this site involved the supply and installation of caissons, underpinning, rock anchors, as well as both traditional soldier pile and lagging and shotcrete
Read More
Paruk Residence

Paruk Residence

/ ,
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.
Read More
Scarborough Hospital

Scarborough Hospital

/ ,
A Design-Build Solution The Scarborough Hospital was adding a new Critical Care Centre in the courtyard surrounded on all sides by existing hospital structures.  HC Matcon’s scope of work included:
Read More
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.
Read More