RESIDENTIAL REFURBISHMENT, MILSONS POINT.Utilising the most superior drilling and dust extraction system available.

Hilti. Outperform. Outlast.

CASE STUDIESPROJECTHilti SAFEset dustless drilling system

TO BOOK AN ON-SITE DEMONSTRATION CALL 131 292

BARRY DRIVE BRIDGE UPGRADE, ACT.Environmental challenges solved with Hilti SAFEset dustless drilling solution.

The Barry Drive Bridge runs over Sullivan’s Creek in Canberra. The bridge which was built after World War Two, is a main thoroughfare for the city’s road freight. With road freights expected to double in Canberra over the coming decade, the bridge was in much need of significant upgrades to allow access for larger vehicles. The project had to comply with the SM1600 standard for bridge load and required strengthening works along the abutment, pier and deck.

The challenges that arose with the ACT Government’s strict regulations stating that there was to be no contamination of the river under the Barry Drive Bridge meant that no concrete, dust or waste was permitted to fall into the water beneath. A task that would make the entire drilling and installing process extremely difficult.

To resolve this issue Hilti Australia, implemented its revolutionary SAFEset technology. This technology uses a hollow drill bit attached to a vacuum that removes the dust from the source through the middle of the drill bit, leaving the site completely clean and in turn causing no environmental damage. To keep the project environmentally safe and ensure there’s no lasting impact from the bridge reinforcement, Hilti became involved right from the tender stage of the project.

Hilti Australia’s Account Manager, Jackson Teo, and Field Engineer, Zac Bouchabake, worked with both SMEC, the specifier and Hawkins Civil, the principal contractor, from design stage through tender to completion. They noted that the introduction of the SAFEset technology was imperative to meeting the client’s brief. “With such strict regulations around the environmental impact, Hawkins Civil agreed that the Hilti SAFEset system was the best solution. The Hilti SAFEset technology not only met all the standards, but it also made significant impacts on the productivity on site.”

Jared Hawkins, Project Manager for Hawkins Civil, said the system worked beyond his company’s expectations and impressed their client, as well as the local Environmental Protection Agency.

Once the project was initiated it included the installation of approximately 2,000 anchors and carbon fibre reinforcements to increase the strength of the bridge deck. For the project, all drilling was done with the Hilti-designed system that utilised an overhead drill press designed and manufactured locally by Baxter Engineering.

Throughout the project, environmental management was critical as the ACT Environmental Protection Agency inspected the site numerous times and commented on the efficiency of the system and quality of the environmental controls. Furthermore, the system as a whole, including the drills, drill bits, vacuums, glues and incidentals, worked flawlessly and the project was completed with zero non-conformances, making it an all-round success.

Case study 1

To book an on-site demonstration call 131 292.

BARRY DRIVE BRIDGE UPGRADE, ACT.Environmental challenges solved with Hilti SAFEset dustless drilling solution.

LEGACY WAY TUNNEL, BRISBANE.Efficiencies in smoke duct corbel anchorage.

Scheduled to open in 2015, Legacy Way is Brisbane City Council’s 4.6km road tunnel that connects the Western Freeway at Toowong with the Inner City Bypass (ICB) at Kelvin Grove.

The tunnel, constructed by Transcity JV, incorporates a smoke duct above the roadway for smoke extraction in the event of a fire. This is formed by precast panels supported by a continuous corbel. The construction of the smoke duct and corbel was the largest single anchoring application in the tunnel’s fit-out and following hydro-blasting the next step in its construction was the installation of anchors.

The anchors consisted of 103,200 N20 reinforcing bars bonded 270 mm into the segment lining. Reinforcement was tied to these anchors and subsequently the corbel was cast. Meetings between Hilti and Transcity JV design and construction teams along with subsequent evaluations and assessments identified the Hilti SAFEset system of

HIT-HY 200-R with the TE-YD 25/59 hollow drill bit fulfilled the stringent performance requirements as well as being significantly more productive than traditional drilling and anchoring methods.

Drill speed appraisals in January 2013 confirmed that there were significant and tangible productivity benefits to be gained from utilising the SAFEset system. The faster drilling speed and elimination of anchor hole cleaning resulted in a time saving of up to 90 seconds per hole as well as providing a dust free working environment and the assurance that the anchor holes were automatically cleaned and ready for injection of the HIT-HY 200-R resin.

The Hilti hammer drills and vacuums were secured to Herrenknecht automated drilling rigs which were located on rails on self-propelled gantries. The success of this critical application is an example of good design practice and successful integration of new technologies.

Case study 2

To book an on-site demonstration call 131 292.

SAFEset is a registered trade mark of Hilti.

RESIDENTIAL REFURBISHMENT, MILSONS POINT.Utilising the most superior drilling and dust extraction system available.

Testimonial

Hilti (Aust.) Pty Ltd I Level 5, 1G Homebush Bay Drive I Rhodes I NSW 2138 I T 131 292 I F 1300 135 042 I www.hilti.com.au

Hilti. Outperform. Outlast.