MCA Engineering was engaged to design, procure and construct a new caisson shaft as part of a critical underground services upgrade. Delivered within a constrained urban environment, the project required strict controls around ground stability, public interface and construction efficiency, drawing on MCA’s shaft-sinking expertise to deliver a fully engineered, safe and durable solution.
The client needed a new shaft installed safely within a tight urban site, where ground stability, public safety and minimal disruption were all critical constraints. A standard construction approach risked delays and safety exposure, so the project required a specialist contractor capable of engineering a controlled, precision-built solution suited to the constrained environment.
MCA designed and installed a segmental caisson shaft, managing cutting edge placement, collar installation, ring assembly, jacking, sinking, excavation and construction of the reinforced concrete base slab. The team combined precast technology, controlled excavation and precision jacking systems, drawing on MCA’s extensive shaft-sinking capability to manage ground conditions and urban constraints throughout.
MCA delivered a fully engineered caisson shaft solution that met the project’s strict safety, stability and efficiency requirements. The combination of precast technology and precision jacking ensured safe installation and long-term structural integrity, giving the client a durable underground services shaft installed without disrupting the surrounding urban environment.
