Workshop – Light Weight Deflectometers (LWDs) within Bulk Earthworks Projects – Demonstrated Uses and Project Specifications
Don’t miss our upcoming workshop where you’ll learn everything you need to know about using this technology in bulk earthworks projects.This practical hands-on workshop aims to help geomechanics practitioners become confident in using the Light Weight Deflectometer (LWD) as an alternative method for verification of earthworks compaction, using worked examples and case studies.
The workshop target audience is:
- pavement designers,
- civil and geotechnical engineers (consultants and contractors); and
- laboratory managers.
LWDs offer innovative solutions to an industry that is currently utilising 1970s technologies, requiring nuclear sources to be present onsite and is beset with staff and skill shortages. In this context, the use of LWDs reduces the time taken to complete the insitu testing, the time lag between testing and reporting, automates recording of test results and removes the need for nuclear sources to be mobilised around construction sites. In addition, LWDs allow the insitu, direct measurement of design parameters, and reduce the need for use of generic parameters to relate site test results to design adopted inputs. The workshop will focus on bulk earthworks applications, like embankments and sub-grades.
Draft QLD DTMR “Guidance on Use of Light Weight Falling Deflectometers (LWDs) to be Accepted as an Alternative Method for Verification of Earthworks Compaction Requirements” within an QA regime was released in 2021.
The workshop will build from the basics of compaction right through to really understanding LWD’s and the interpretation of results. We will pull apart the draft QLD DTMR Guidance and help attendees to apply this method specification in practice, using real world data and worked examples.
Attendees will also gain insights from projects where this approach was developed and refined into specifications that were adopted for onsite works; including major NSW and QLD infrastructure projects.
Your educators are those who have been facilitating the implementation of LWD’s for more than 15 years, and include pavement designers, geotechnical engineers, laboratory managers and contractors.
We cannot wait to share the full line up with you!
Primary Presenters:
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Secure your tickets now and join us for an informative, practical and engaging session!
The Light Weight Deflectometer (LWD) was first used in 1998 by the Minnesota Department of Transportation (Mn/DOT) at the Minnesota Road Research Project. Starting in 2005 the LWD has been used by Mn/DOT as an acceptance tool for the compaction of roadbed and miscellaneous embankment and trench construction, culvert treatments and other tapered construction.
The PANDA probe is giving us and the construction team very useful insight with immediate feedback on the compaction being achieved on a major new rail construction project in QLD. We have two teams working daily using PANDA DCP’s and the Automatic Hammer on the rail formation, enabling real time decision making with confidence, based on the highly repeatable results.
Our Plate Load equipment is getting a lot of use. We’re very happy with it. 🙂
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