This project presented a number of challenges including the modelling of predicted settlements between the central core structures (main structure is 30 storeys) and surrounding podiums. The site is underlain by a 20m profile of Coode Island Silt. Geotech proposed a hybrid of CFA foundation piles to the Melbourne Formation siltstone and cast in situ displacement piles founding in the Werribee Formation. With the underlying Melbourne Formation siltstone at around 48m depth some of the main CFA piles were founded at 51m depth making them the deepest CFA piles constructed in Australia. Our scope of works included the D&C of 168 no. 600-900mm dia. CFA and displacement piles up to 51m deep; 6 no. 750mm dia. piles to crane bases ; and a rigorous program of sonic integrity and dynamic pile load testing.
Riverside Quay – a Fender Katsalidis designed 12 storey commercial building above an existing 8 storey carpark. With the site’s close proximity to the tunnel into Melbourne Casino, the Yarra River, Freshwater Place and Eureka Tower and demolition at each end of the existing Riverside Quay carpark, this project presented Geotech with considerable staging and access hurdles. The structural modelling of the east and west cores was finalised in parallel with our site works ensuring that our designers were constantly challenged to find practical last minute solutions to a fluid design. Our scope of works included the D&C of 86 no. 600-900mm dia. CFA foundation piles typically 27- 30m depth; crane base and Alimak piles; and sonic integrity and dynamic pile load testing.
On Friday night at the Master Builders Awards Gala Dinner held at Crown Palladium, Geotech took out the Excellence in Civil Construction category for their Candowie Reservoir Upgrade Project (D&C) in Almurta, VIC.
The Excellence in Construction Awards showcase the best that the Victorian construction industry has to offer: the best in design and planning, construction, project management, mechanical services and building materials.
Said Director Darren Loidl: “On Friday night it was my great pleasure to accept the 2015 Excellence in Civil Construction award from the Master Builders Association for our upgrade of Candowie Reservoir. The award recognises the dedication of our skilled personnel and staff who delivered this challenging and unusual project.”
“The award is also evidence of the excellent collaboration between the Geotech Group, our client Westernport Water and their designers Entura, as the project was delivered efficiently where it now doubles the previous water storage capacity for the Phillip Island community.”
The Candowie Reservoir Upgrade project involved nearly doubling the dam’s storage capacity by raising the dam wall and spillway by 3m in order to secure a reliable and affordable water supply for future generations in the Bass area. The embankment upgrade raises the existing crest wall using a combination of pre-cast panels and cast in-situ works in order to construct the new embankment fill behind the new wall. New permanent anchors were also installed to meet required seismic loads on the increased height of the outlet tower. The spillway and its training walls also required attention. Water levels had to remain high and works were to be undertaken in a live operational environment.
This year’s excursion for students and departmental staff from The University of Melbourne (UoM) was to Botanica Apartments at 188 Whitehorse Road, Balwyn, a project that comprises a 2-level basement car park on a 5,700m² site. Geotech was engaged as the specialist subcontractor by Hamilton Marino Builders for the design & construction of the retention works including soldier & foundation piling, temporary ground anchors and shotcrete infill panels.
General Manager Nic Morgan’s presentation to the students described the design complexities and geotechnical conditions of the site, and construction techniques required to undertake the works.
UoM was extremely pleased with the excursion and received a lot of positive feedback from both students and colleagues.
Geotech’s close association with UoM goes back some 30 years, the last decade of which has taken the form of annual excursions to various Geotech construction sites for students completing their “Geotechnical Engineering” subject. Recent excursions include field trips to The Icon Apartments in St Kilda, the new Royal Children’s Hospital in Parkville and the Moonee Ponds Central shopping centre (examples of basement works), and to the Royal Melbourne Hospital and Flemington Racecourse (tunnelling works).
We look forward to next year’s excursion, where students can make the connection between the 'theory' they learn in class and 'real world' practice.
Through Geotechnical Engineering’s (GE) close ties with Coleman Rail within the Geotech Group, GE has developed an impressive record on major grade separation projects. Working in the rail corridor is in GE’s DNA. These include:
As a key partner within the project team on these grade separations, GE has been able to demonstrate our great diversity if direct skills including soil nails, shotcreting, conventional bored piles, CFA piling, sheet piling.
These projects are frequently undertaken with very limited access for plant and occupation- type time frames requiring nightshift works. The broad range of GE’s direct skills ensures timely progress of the projects across multiple fronts with project management and site operations experienced in working in the rail corridor.
As part of the $US19b PNG LNG & Condensate Jetty project, the US$130m contract to construct the 1,800m long jetty and LNG ship loading facilities. During construction of the jetty, some unfavourable geotechnical conditions were encountered, where the penetration of driven steel tubes was deemed insufficient to withstand calculated tensions that may occur during an earthquake event.
The anchoring works were located at State Portion 152, which is located along the south coast of Papua New Guinea, approx. 30km from Port Moresby. No suitably sized drilling, equipment, anchoring fabrication materials or stressing equipment were available in PNG. As the operational plant and equipment occupied the entire width of the jetty, blocking access to all other construction, the anchoring works were conducted on a night shift basis. All anchors were installed and stressed without incident on the project.
Geotech was engaged with the project’s design engineers to develop a design & construct solution that would provide additional tensile capacity to the structure. After an extensive 12 month period working collaboratively with the project’s international design group, Geotech’s permanent ground anchor solution was adopted for implementation.
John Beever Australia is successfully delivering another key project for Boral, this time at their Deer Park Quarry, one of Boral's largest hard-rock operations in Australia.
The Geotech Group had 20 runners compete in the recent Run Melbourne event, where some 17,000 participants have so far raised more than $1.5 million for 400-plus charities.
The incentive to train (well, some did!) and run in the middle of winter was our fundraising for the Fiji Children's Emergency Appeal via Unicef Australia. On that, we must thank our corporate partners in BJ Safety Supplies, as well as the major contributions we received from the following clients:
With donations still coming through, we will raise over $11,400 thanks to the generous support of family, friends, colleagues and clients.
Donations can still be made until August 24 via the following link: https://runmelbourne2016.everydayhero.com/au/geotech-group
ON Thursday 21 July 2016, the Directors of the Geotech Group of companies launched their Safety Charter, demonstrating their collective commitment to sending every worker home safely to their families.
The ceremony was attended by over 200 employees from the Melbourne Metro area, with the charter soon to be delivered to our projects in country Victoria and interstate.
Company founder Gerry Noonan was guest of honour at the ceremony, where his alter ego "Safety Gerry" was revealed. Gerry waxed lyrical about just how far industry safety standards had come since Geotech was founded back in 1972. From his stories it’s fair to say a long way!
The charter is a great example of the Directors and employees working together, as it was derived in response to suggestions from our internal Safety Leadership programs.
The charter involves seven actions about health and safety, which each signatory must commit to. The actions are succinct and common sense, in recognition of the need for immediate understanding and ease of compliance onsite.
The ceremony included the announcement of the winner of the inaugural Safety Gerry Award, taken out by Craig Addicoat (Supervisor, John Beever Australia) for his efforts in managing 70,000+ man hours without a reportable injury at our Origin Gas Plant project in Port Campbell, Victoria, demonstrating an exceptional approach to safety and commitment to the Group’s safety objectives. His reward was a $5,000 travel voucher, which you’d imagine will be spent going somewhere other than Port Campbell! Other nominees were awarded Bunnings vouchers.
At the completion of the ceremony, all employees were invited to sign the charter, whereby they committed to look after themselves and their work mates.