Dufferin Mall

Dufferin Mall

Dufferin Mall Pedestrian Tunnel

This renovation project includes the challenge of constructing a 10ft wide by 12ft deep pedestrian tunnel inside an active mall. HCM together with RWH Engineering proposed an innovative design and construction process to accomplish this endeavor with very limited working space and tricky access issues. The construction involves:

• Shotcrete shoring to allow for vertical excavation of the tunnel area

• Bob Cat mounted TEI drill for the installation of tie backs

• Removal of excavated material via narrow stairwells and utility corridors

• Supply of materials and tools via narrow stairwells and utility corridors

In addition, HCM’s scope of work includes increasing the depth of an existing elevator pit, building underpinning, exterior stair concrete footings and retaining walls.

Client: EllisDon Corporation
Location: Toronto, Ontario

Weston Tunnel Grade Separation

Weston Tunnel Grade Separation

Weston Tunnel Grade Separation

HC Matcon achieved a significant milestone on the Weston Tunnel project, allowing for the GC to accelerate the schedule and make up for project delays. HCM mobilized 5 large diameter drill rigs and in seven and a half weeks installed 311 soldier piles (12,000 linear feet) drilled into bedrock up to 60 feet deep and approximately 620 filler piles (7,000 linear feet). The work was completed with an average of 30% downtime as drilling was carried out between two operational train tracks.

Client: KO Constructors
Location: Etobicoke, Ontario