Skip to content

TTC St. Clair Station

Two new elevators on the east and west sides of St. Clair station were installed to allow easier access for disabled persons. During construction, HC Matcon was confronted withsome interesting challenges, including extremely tight access and a high water table.

The east elevator pit was constructed with a 10 m deep caisson wall, braced horizontally against the existing subway structure. Piles were drilled with a Bauer BG 22H self-lining drill in order to overcome the high groundwater conditions.

The west elevator pit was constructed with an 8 m deep lagging wall, the piles for which were drilled in a single weekend in order to comply with TTC and City of Toronto access restrictions. HC Matcon’s excavation operations were aided by our own dewatering systems installed at each elevator pit. A total of 4 deep wells were effectively used to lower the water table below final excavation grade.

Client: Consolidated Canadian
Location: Toronto, Ontario

Mill Pond Estates

Mill Pond Estates

Shotcrete: Low Cost and Overcoming Hillside Access Issues This 12,000 sq. ft. project involved temporary hillside shoring for a developer in Tillsonburg. The project was completed during winter months with
Read More
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
Read More

Burke Residence

Burke Residence The site topography presented the challenging task of installing shoring on steep slopes which impeded the accessibility of conventional equipment to the residential lot at the back alley
Read More
St. Thomas Courthouse

St. Thomas Courthouse

Alternate Methods Stop Running Sands HCM was retained to design, supply and install a complete shoring system to facilitate construction of the new St. Thomas Court House for EllisDon. Construction
Read More
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
Read More
Love Condos

Love Condos

Love Condos This project involved approx 41,000 sf of piles and lagging temporary shoring system. The project was broken into two phase both consisting of piles and lagging with both
Read More