Auckland City Hospital Central Plant and Tunnel

Automated structural and geotechnical monitoring, ensuring safe, uninterrupted works for Auckland Hospital’s critical new plant building and 240m service tunnel

The Auckland City Hospital Project

Auckland Hospital, a vital facility, requires infrastructure modernisation due to its aging systems. The New Zealand government plans to construct a Central Plant Building to accommodate crucial services like power, heating, cooling, emergency generators, and storage facilities. This building will be connected to the main Hospital via a 240-meter service tunnel, facilitating the efficient flow of services and resources. This project involves the construction of a new five-storey central plant building and the service tunnel.

The situation

The joint venture of McConnell Dowell and Built Environs has contracted Sixense to deliver a monitoring solution that brings advantages and improvements to the management of construction-related risks. This includes the establishment of a real time monitoring network for the excavation and construction of the plant building and service tunnel.
Continuous monitoring is essential at the bustling construction site, where there is a potential obstruction of the line of sight between the total stations and monitoring prisms, leading to the disruption of the uninterrupted flow of monitoring data.

What we’ve delivered

Monitoring is being carried out using a combination of structural and geotechnical monitoring sensors, including monitoring prisms and in place inclinometers. All sensors are automated with wireless data transfer, enabling seamless data transmission to Sixense servers.
Sixense ensures uninterrupted data continuity by utilising the integrated cameras in the total stations to remotely observe the prisms. This capability allows the survey team to verify the precise location of the prisms and promptly share images of any issues with the construction team. As a result, the on-site team can swiftly address these concerns, minimizing downtime and facilitating the resumption of uninterrupted monitoring.
The Geoscope software platform developed by Sixense integrates monitoring data obtained from various instruments, enabling real-time monitoring and informed decision-making through a centralised access point.