General Motors — CAMI Assembly Plant

Ingersoll, Ontario

PROJECT SERVICES

Demolition

PROJECT CATEGORY

Industrial

PROJECT DATE

April 2020 – August 2022

CLIENT NAME

General Motors

The project

The scope of the subcontract work required the selective demolition and removal of the old paint shop back to the base building within a footprint of approximately 188,000 square feet, while leaving the main building structural framing and services intact and protecting adjoining areas of the plant.

The redundant equipment and structures included the paint booths, ovens, and conveyors along with the associated mezzanines, the secondary support structures, and the electrical and mechanical services, which were located on the ground level, the mezzanine and upper mezzanine levels as well as the roof of the building.

The extent of the demolition work was from the top of slab on grade to the underside of the existing building roof trusses and included the cleaning of various pits, with sections of the existing redundant equipment and mezzanine level structures being left intact. The work also involved the removal of twenty-five (25) stacks from the main building roof above the paint shop.

Delsan-A.I.M. undertook a major tear-out of equipment and infrastructures in preparation for the installation of a new paint shop inside the General Motors CAMI Assembly Plant in Ingersoll, Ontario.

This challenging project – which required close coordination with the general contractor and other subtrades – entailed working on a 24-hour a day, 7-day a week basis to meet the schedule requirements using two (2) shifts with crew sizes, at peak operations, of up to fifty (50) personnel per shift.

During the planning phase, Delsan-A.I.M. prepared the required plans and procedures for the work and set up the site, which included a trailer complex along with equipment and scrap laydown areas that were isolated from other plant operations using construction fencing.

Delsan-A.I.M. safely and successfully executed the work in the allotted timeframe using a combination of mechanically and manually operated demolition equipment. A large fleet of sixteen (16) mid to large excavators was mobilized to perform the mechanical demolition and clean-up operations along with front-end loaders, skid-steer loaders, telescopic handlers, forklifts, and ride-on sweepers.

Delsan-A.I.M. utilized five (5) dedicated roll-off trucks to evacuate the demolition debris as the work progressed and to transport the materials to an on-site laydown area for further processing and subsequent off-site shipment to licensed recycling or disposal facilities.

In addition, Delsan-A.I.M. mobilized fourteen (14), 60’ to 80’ elevated work platforms to provide worker access for the selective demolition work, which involved using manually operated cutting equipment, such as reciprocating saws and torches, to not only create a safe separation from equipment and structures to be removed from those to remain, but also to perform the final trimming work.

The stacks – with the highest extending about 75’ above the roof level – were removed in accordance with an engineered lifting plan using a 500-ton mobile crane equipped with a luffing jib to reach the furthest stack, which was located about 265’ from the edge of the building.