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Our works

LOGANHOLME WWTP LIFT PUMP STATION UPGRADE

LOGANHOLME, QLD | DOWNER

(LOGAN CITY COUNCIL)

$7M ($1.2M) | MAY 2021 - DEC 2021

Allstar is supporting delivery of the Loganholme WWTP Lift Pump Station Upgrade project being delivered by the Logan Water Infrastructure Alliance – a public and private sector enterprise involving Downer, Logan City Council, Cardno and WSP and one of the largest water infrastructure delivery programs in Australia. The upgrade including new pumps and a penstock will improve operation on the lift station and operator safety.

OUR SCOPE:

  • Demolition and removal of existing benching and construction of new benching in the wet well

  • DN700 and DN1000 (2 no.) core holes between 600mm thick wet well/dry well dividing walls

  • Grouting of penstock frame, suction pipe penetrations and pump and duckfoot base plates

  • Demolition and removal of pump plinths for existing pumps

  • Form, reinforce and pour pump and duckfoot plinths for new pumps » Form, reinforce and pour infill landing slabs using cantilevered formwork

Allstar Loganholme Project

HIGHLIGHTS/CHALLENGES:

  • Restricted work areas

  • Multiple work fronts with only one gantry crane

  • Concrete placement 20m below ground

  • Weather dependent: development of emergency / contingency plans if wet weather was to develop resulting in releasing valves to flood wet well

  • Removed of over 50T of concrete rubble from existing structure

  • Utilised innovative remote demolition robot to reduce manual handling and fatigue inducing jackhammering

  • Safely delivered the works in parallel with other contractors (SIMOPS)

  • Over 50T of concrete removed over 20m plus below ground level

  • Innovative construction methods used to optimise schedule

  • Challenged design to create less intensive work methodologies

  • Use of demolition robot to minimise personal entering confined space environments

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