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Webinar puts microtunnelling on the agenda

The fourth instalment of the ASTT’s Technical Webinar series discussed the current microtunnelling design guidelines and some of the important information contained within the standards.

Titled Unpacking the ASTT Microtunnelling Design Guidelines for Sewers, presenters Jim Shooter, Robert Loncar and John Bower examined how the microtunnelling design guidelines for sewers were created, with the three basic microtunnelling sections and how the design for each differs.

The webinar also covered the role of geotechnical information and the difference between designing a rigid and a flexible pipe.

“No matter where you go, you’re going to hear that the geotechnical information is critical,” said Mr Shooter.

“To work with the ground, you’ve got to know what it is. The amount of preparation required for trenchless is enormous compared to open cut work.

“There are many geotechnical methods that are now available, and they have progressed enormously over the years.”

The ASTT has been holding webinars in place of its in-person trenchless forums this year due to restrictions on gathering brought about by the COVID-19 pandemic.

For more information on the society or upcoming webinars visit the ASTT website.

If you have an event you would like featured in Trenchless Australasia contact Assistant Editor Sophie Venz at

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