Shotcrete, Underpinning

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

The Osterberg Cell

The Osterberg Cell HCM was contracted to provide supply & installation of O-Cell load test on the New Calgary Library project located in downtown core of the city, in close

Centron Business Park Retaining Wall

Centron Business Park Retaining Wall

Steep Slope Retaining Wall The site topography presented the developer with the challenging task of constructing a permanent retaining wall structure into a hill formation near Blackfoot Trail in southeast

George Street Bridge

George Street Bridge This bridge replacement project required the drilling of two abutments consisting of a total of 32 drilled caissons in the existing creek bed. In addition to the

Segmental Excavation Mining and Support of Excavation - Eglinton LRT - Cedarvale Station SEM and SOE

Eglinton LRT – Cedarvale Station SEM and SOE

Eglinton LRT – Cedarvale Station SEM and SOE The Eglinton LRT Cedarvale Station required the new structure to pass below the existing TTC subway below grade. HC Matcon Inc. (HCM)

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

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