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Lyceum 2021 | Together Towards Tomorrow

Over the past seven years, GHD has transformed its workflow of geological modelling and quality assurance since the adoption of Leapfrog geological modelling packages.

Moving from reviews where Leapfrog Viewer acted as the revision control to Seequent’s Central software has allowed GHD to develop detailed 3D geological models with model updates continuously documented within the software.

The adoption of Central has allowed GHD’s regional network in Australia, Papua New Guinea and New Zealand to collaborate more easily on a daily to hourly basis, for projects locally and further afield throughout GHD’s globally connected network.

Overview

Speakers

Christopher Bennett
Geology Service Line Leader, APAC GHD Australia – Brisbane

Duration

30 min

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Lyceum 2021

Video transcript

Video Transcript

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(upbeat uplifting music)

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<v ->Hello, my name is Christopher Bennett</v>

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and I am the Geology Service Line Leader for APAC at GHD.

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Thank you for joining this presentation

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on how GHD enhances 3D geological modeling capability

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by combining it’s globally connected network

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with Seequent’s Central software.

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GHD is an employee owned professional services company

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in engineering, architecture, environment and construction.

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GHD was established in 1928

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and has grown to greater than 10,000 staff

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across five continents.

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We see having a globally connected network

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is a cornerstone to our business

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and believe this allows us to progress

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our services towards the future.

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Additionally,

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having a progressive approach to digital technologies

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has allowed GHD to stay at the forefront of innovation

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and for our geology service line,

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our digital journey increased

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in collaboration across the company recently,

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in the engineering geology services

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through the use of Leapfrog.

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GHD first began to use Leapfrog in Australia

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with a couple of users in 2014,

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our modeling was limited

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to two to three staff who could create,

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then manually upload models to our system

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for review by others.

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Review tracking was limited within the model

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and we relied upon an internal QA system

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to detail our processes.

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As detailed in our 2019 conference paper,

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the 3D Geological Model had become a client asset,

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as much as design tool by that stage.

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And, while this worked due to the relatively small team

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of engineering geologists,

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using and interacting with 3D models,

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it was a limited team.

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With the integration of civil infrastructure

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into the model as part of the process,

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consultation process for the client,

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our systems relied heavily on viewer file creation

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to maintain file version control for review.

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So, what changed?

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Adoption and collaboration growth.

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Our geological modeling of civil infrastructure projects

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has exponentially grown to the point

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where we have over 30 engineering geologists modeling

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on projects across the globe.

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The majority of modeling is done within a hundred plus staff

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in the Geology service Line in Australian APAC region,

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meaning that to service projects,

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GHD was uploading and downloading a large amount of data

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prior to Central being adopted.

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So,

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we needed a solution

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and that was the adoption of Central.

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During the initial uptake of the trial period with Central,

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the COVID outbreak occurred in 2020.

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This lead to national and state borders being closed

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and placed a strain on GHD’s

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need to use locally based staff for fieldwork.

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These restrictions came into effect around the time

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that we started a dam in Brisbane.

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It mean, our Queensland team

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had a number of engineering geology field task on,

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while the New Zealand team were at home in lockdown,

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including a staff member in Dunedin,

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who had previously modeled.

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So,

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we were able to allow the creation of the model

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to be passed across to Dunedin to be modeled.

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This is while our lead geologist

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and reviewer was based in Brisbane.

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Our initial modeling shown here on the screen,

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revolved mainly around the modeling of the main units,

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with a review process occurring in number of drafts

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in the comments tracked as shown on the right of screen.

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Not all changes were recorded as we began using Central,

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based on us learning the software

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and learning it’s abilities and potential.

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We benefited on being able to provide a QA sign off

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within the model at the completion

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and records were taken across the GHD’s QA system

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for project approval.

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This phase of the project came to completion in late 2020

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and model was closed down for future use.

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With the next phase of the project kicking off this year,

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the staff member in Dunedin was no longer available,

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but a team member in Sydney was.

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The lead geologist and the reviewer stayed the same.

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So the transition of the model to the next phase was simple.

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The Central license was provided across

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to the new project team member and modeling could begin.

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But more importantly,

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the engineering geologist taking over the project

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was able to review the previous developments

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and assumptions made in the model

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through the date stamps and data comments,

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to understand what had been required

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to build the model to the point it was at.

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The next phase of the study

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included onsite geological mapping,

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leading to further development of the model

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through the structural discs and geological detail.

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The record on the version list provided constant tracking

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of these developments throughout this next phase.

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The next project showcases how Central further assisted GHD

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through geographical separation

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using a large database over a period of time.

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This example of Hunter Water’s Chichester Dam

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model development began in 2020

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and continued through to the present day.

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GHD relied on the use of central for this project

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as our leading engineering geologist at GHD had moved

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from Australia to live in Papa New Guinea,

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and uploading and downloading model files

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would lead to large time delays.

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The geological model for Chichester Dam included topography,

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BIM information and geotechnical investigation details.

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As shown by these images of the model,

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the study involved incorporation

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of numerous foundation services and drawing sections,

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which facilitated and the review of the geological model

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against the dam structure.

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These large but accurate files are critical

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to proper QA review of the geology against infrastructure.

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So, having them in the model in full was key.

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This dam site also included

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a large array of bore hole information

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which GHD uses in different presentation formats

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to check the distribution of geological features

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and geo technical properties.

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These features were assessed against the dam structure in detail

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through multiple interpretation and assessments.

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As the development of this geological model evolved,

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the modeler based in Sydney

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and the reviewer in Port Moresby were able to piece together

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the information making key connections

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before moving onto the next area of information.

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The workflow process from Sydney to Port Moresby

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was continuous and

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throughout the development.

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Central allowed GHD to track these updates essentially

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by providing an evolution of the geological model

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as it developed to a point where you can see

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the overall geology structures within the dam,

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sorry beneath the damn, connected.

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This collaborative approach is something

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that GHD sees is key towards the quality of our work

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and is part of an effective geological model,

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as it relates back to the principals

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of developing a geological model

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in accordance with ANCOLD guidelines

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from Concept model at the top of the right of the flow chart

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to the Analytical model in the bottom.

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And it has been with Central

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that we were able to track the development

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through the past 12 months as the model evolved

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through the phases expected with the ANCOLD guidelines,

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while documenting the collaboration now possible

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through a global e-connected network using Central.

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I hope you enjoyed the presentation

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and thank you for joining me at Lyceum.

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(upbeat uplifting music)