High-volume Water Stop Project
Water inflows through a caisson wall jeopardized a tunnel construction schedule. Multiurethanes designed and completed a chemical grouting program to stop the leaks and get the project back on schedule.
Leak sealing in Concrete Tunnel Liner
Engaged on a time-critical water stop project to seal active infiltrations through a concrete tunnel liner using chemical grouts.
Cement Grouting in LRT Construction Project
Performed microfine cement grouting and waterstop operations using polyurethane resins, and provided soil stabilization in cross passage tunnels along the road in a light rail transit (LRT) line construction project.
Cement Grouting to Fill Voids Behind a Tunnel Liner
Performed soil stabilization and microfine cement grout injection to fill voids around the tunnel liner at the Eglinton Crosstown Project in Downtown Toronto
Pressure Grouting for Railway Repair
Our technical team developed a solution to lift train track crossings on wood ties by pressure grouting under the tracks. This new approach was fast, reliable and surprised the utility contractor, who had been looking for this solution for a long time.
Water Cut-off in a Tunnel Shaft
Engaged on an energy transmission facility expansion project, performing a water cut-off operation in a tunnel shaft liner for a major utility company.
Soil Stabilization in Tunnel Construction Project
Provided soil stabilization for a complex tunnel project with several site restrictions including no drilling from surface and working in close proximity to sewer and water mains.
Tunnel Decommissioning using Cement Grouting
Engaged on a tunnel decommissioning project involving multiple stages of drilling and cement grouting work from the surface, to improve ground conditions prior to miners entering the tunnel for subsequent stages of decommissioning.
Innovative Water Cut Off Solution for a Hard Rock Tunnel
A large tunneling contractor found itself in a difficult situation with a large flowing water leak in a new rock tunnel 20 metres underground.
Water Cut-off Operation in Tunnel Construction
Performed a water cut-off operation for a large utilities company to stop water inflows in a tunnel construction project, using polyurethane resins.