Crane Hot Line is part of the Catalyst Communications Network publication family.
In Calgary, combating greenhouse gases is a top priority, driving the adoption of emission-free technologies. Marking a milestone in this endeavor, the LB 30 unplugged, Canada's first battery-powered construction rig, is put to the test amidst freezing temperatures of minus 36 degrees during the construction of a pedestrian overpass.
Graham, the contractor, and Ki International Ltd., handling deep foundation work, deploy the LB 30 unplugged for challenging drilling tasks. Despite the icy conditions, the machine successfully completes its inaugural operation, installing 22 piles using the Kelly method.
"We saw the LB 30 unplugged as an opportunity to do something good for our society," explains Gordon Williamson, owner of Ki International Ltd. “It is imperative that construction machines with electric drives have a future in Canada in order to steer our economy towards sustainability."
Situated in north-west Calgary, the construction site serves a bustling area housing key facilities like the Foothills Medical Centre and the Calgary Cancer Centre. The new overpass aims to enhance accessibility and foster local growth.
Employing the Kelly method, Ki International Ltd. constructs 22 cast-in-place piles for the overpass, with the largest ones reaching a diameter of 1,000 mm and a depth of 18 m. Soft ground conditions necessitate casing throughout the drilling process.
Facing the frigid Canadian winter posed the greatest challenge, with temperatures plummeting to minus 36 degrees. However, despite the biting cold, work commenced in January without any delays in rig performance.
The proximity of the construction site to a major hospital underscores one of the LB 30 unplugged's key benefits: its low noise emissions. Ensuring unhindered passage for emergency vehicles amidst ongoing construction operations is crucial, and the rig's quiet operation enhances safety for medical staff, patients, and construction personnel alike, particularly in urban areas.
"We are proud that this emission-free technology is being used in Canada for the first time. Zero emission aligns with our policies and our climate strategy. The use of such machines will help us to reduce greenhouse gases,” Jason Lin, project manager for the City of Calgary, said. “That is very important for us.”
Jason Lin, Project Manager for the City of Calgary, expresses enthusiasm for the LB 30 unplugged's alternative drive system, aligning with the city's emission reduction goals. Gordon Williamson concludes with satisfaction, stating, "We sought out a challenging task—one that truly tests the machine. And we got it. This project proves that the LB 30 unplugged can handle tough drilling tasks and extreme weather conditions with ease."
