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Geotechnical advice and monitoring, Queensland Children’s Hospital, Australia

THE PROJECT

Located in South Brisbane, the Queensland Children’s Hospital is a single paediatric health centre that unites the Royal Children’s Hospital and the Mater Children’s Hospital. Costing $1.5 billion, it comprises 12 storeys and a multi-level basement car park and a total floor space of 80,000 m².

PSM was engaged to provide geotechnical advice regarding the impact on the Queensland Children’s Hospital of three levels of basement excavation on the adjacent Vulture Street Bus Tunnel.

ENGINEERING AND TECHNICAL OPPORTUNITIES

Ensuring public safety and protecting the operational efficiency, functional safety, and structural integrity of the busway tunnel during basement construction was a key consideration of this project.

APPROACH AND INNOVATION

Following a rigorous assessment and modelling, PSM’s tailored approach included:

  • Detailed analysis to predict potential movement of tunnel lining
  • Monitoring of baseline data before basement construction including tunnel dilapidation survey
  • Provision of a PSM engineer on call 24/7 for rapid assistance and decision making
  • Real-time monitoring including vibration, tiltmeter, crack gauges, extensometers (inside tunnel) and inclinometer instruments (outside tunnel)
  • Provision of detailed and timely advice to Queensland Health and the Department of Transport and Main Roads regarding the interaction between the works and the existing tunnel structure.

OUTCOMES

PSM provided investigation, design, analyses, 24-hour real-time monitoring and on-call critical decision making for safe operation of the busway. PSM also provided detailed and timely advice to Queensland Health and the Department of Transport and Main Roads regarding the interaction between the works and the existing tunnel structure. The project was successfully completed with all tunnel operator requirements met.

Services: #Geotechnical

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    Locations

    Sydney

    G3, 56 Delhi Road
    North Ryde NSW 2113

    BRISBANE

    Level 6, 500 Queen St
    Brisbane Qld 4000

    PERTH

    Level 3, 22 Delhi St
    West Perth WA 6005

    Geelong

    Shop 4, Suite 4, 23-31 Gheringhap Street
    Geelong VIC 3220
    Contact us
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