65 Lillian Street Condominium Building

65 Lillian Street Condominium Building

65 Lillian Street Condominium Building

Work on this jobsite included the excavation support system for a new condominium building located on 65 Lillian Street in Toronto, Ontario. HC Matcon used soldier piles and shotcrete lagging shoring (SPLS) with soil nails to support the excavation of an approximately 30-foot deep underground parking garage.

One challenge of this project was the close proximity of the excavation to the property line of the adjacent residential buildings. The consultant’s design included a caisson wall for this part of the system. HC Matcon proposed an alternative to save the owner and general contractor money, schedule time, and square footage of finished building by applying an equivalent system of shotcrete shoring and soil nails. This system will also act as a one-sided form for foundation walls.

During this project, there were some unforeseen obstacles for the shoring installation that required avoidance.

Utilities were found between the shoring system and the adjacent existing building footings to be demolished. HC Matcon was able to modify the pile design to support these utilities during demolition.

Other concrete obstructions were avoided by using an alternative pipe pile design to satisfy property line constraints, a perched walkway for the access of neighboring houses, and to facilitate the demolition of the existing parking garage.

HC Matcon will take on many challenges related to shoring and foundation design while keeping the interests of the general contractor and owner in mind.

Client: Lewis Build Corporation
Location: Toronto, Ontario

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:

  • excavation of the new building foundation on pad footings
  • permanent shotcrete underpinning system to support surrounding structures
  • soldier pile and lagging wall to support a pedestrian walkway adjacent to pad footings and service manholes
  • demolition of service tunnels while maintaining operation and maintenance access for emergency services and hydro caissons to support new canopies and additions to existing structures.

At various points during construction, HC Matcon has been required to provide innovative design-build solutions to accommodate changes to the original design.

Client: EllisDon
Location: Scarborough, Ontario

Aldershot GO Station Improvements

Aldershot GO Station Improvements

Our Innovative Solution Saves Time

Work at the Aldershot Go Station in Burlington, Ontario comprised of the construction of two new pedestrian tunnels to access the existing passenger platforms. The project was further complicated by the proximity of high speed passenger train rails and the need to maintain and operate the facility while the work was in progress.

  • In order to minimize the impact of the installation of the shoring, HC Matcon Inc. opted to install a single row of multi-strand high capacity tie backs; in excess of 900 KN capacities.
  • The high design loads required these anchors installed under strict on site quality control of strand and grouting procedures.

The innovative approach taken by HC Matcon Inc’s design team provided the optimum solution to the strict requirements of the project while, significantly reducing the duration and subsequent impact to the overall project completion schedule.

Client: Kenaidian Contracting
Location: Burlington, Ontario