Port of Brisbane Motorway Alliance Enhances Geotechnical Outcomes

摘要

The Port of Brisbane Motonvay was designed and constructed by an Alliance comprisingrnCoffey Geosciences, Parsons Brinckerhoff, Leighton Contractors and Queensland Motonvays. The project was completed six months ahead of schedule and under budget to the satisfaction of the Alliance Partners and State Government.rnThe Motorway extends from the Gateway Motonvay in the west to the Port of Brisbane on the east and the Alliance was responsible for the design and construction of Package 3 of the project between the Gateway Motorway and Lindum Road. Package 1, located within Package 3, was carried out by others, but the Alliance was responsible for liaison of the whole project.rnThe Port of Brisbane Motonvay crosses variable ground conditions with weathered rock at shallow depth near the Gateway Motonvay and weak, compressible soils towards the east. The thickness of soft soils varied but was predominantly between about 20m and 30m. The geotechnical team working together with estimators, construction personnel, hydrologists and highway engineers, and peer reviewers fiom Queensland Main Roads provided a robust design within a short time frame and continued to provide input during construction to achieve the high standard set by the Alliance Partners. This paper describes the geotechnical challenges encountered and how they were overcome with proper Alliance spirit.