| BACKGROUND |
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| Northern Link is a proposed major underground toll road which will connect the Brisbane Western Freeway, to the Inner City Bypass Clem 7 and the Airport Link tunnel. It is a part of the Brisbane City Council's TransApex project. The TransApex project is designed to cater for the expected traffic growth within Brisbane's CBD. |
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| WHAT WE DID |
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| Geotechnical investigation was required to obtain data on the solid geology vital in the design and selection of the proposed tunnel and is route. |
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| Client | Brisbane City Council |
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| Duration | Two months spread over two years of work have been completed. |
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| Location | Boreholes were completed along the proposed route, within restricted urban roadways. |
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| Drilling | Technical Facilitation |
| • | Deep core holes to a depth of 60-90 metres; |
| • | Night works due to traffic and site restrictions; |
| • | Grout backfilling of borehole on alignment; |
| • | Complex geotechnical engineering insitu rock testing; |
| • | Installation of Geotechnical Instrumentation. |
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| OUTCOME |
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| "As a result of the investigation the project was deemed feasible and progressed to contract stage, with construction to commence late 2011." |
| Gary Bruyeres | Brisbane City Council, Senior Engineer |
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