This presentation looks at the challenges of implementing digital engineering for linear infrastructure. The session deals with the challenges of integrating standard drawings, contract variations, 3D constructability assessments and real-world coordinate systems. Using the example of a $180 million motorway upgrade in SEQ, the presenter outlines digital engineering from the contractor perspective, and transitions the focus from design models to as constructed models, showing how digital engineering improves construction processes and outcomes.
BIM has for a long time been the domain of designers. From the design perspective, a "digital twin" is converted to reality and the design model essentially becomes the spatial construction record to be used for asset maintenance going forward. The reality is that the road construction process is complex, process focused and pragmatic, meaning that BIM must solve construction problems in order to be effectively integrated. 3D model data must work for constructability assessments, scheduling and quality assurance. The effect of on site design changes needs to be accommodated within the BIM landscape and record keeping must be integrated in order to avoid duplication of effort.
In real terms BIM can improve the construction process, but we should not underestimate the cultural issues ahead. At the end of the day the line of least resistance to produce a 3D construction record is to build a detailed "as constructed" BIM model on site using site using site survey data. The key realising the potential of BIM is to keep design, construction and administration activities connected through a live shared data environment. A well organised 3D spatial database which can provide connectivity, visualisation and data entry portals for associated construction systems including scheduling and QA will prove a useful addition, and this means that the database aspects of BIM need careful attention.
As most of us are now aware, the Queensland Department of Transport and Main Roads (TMR) has mandated that BIM be used on road construction jobs in Queensland. TMR have indicated their intention, that all major works will have adopted the BIM approach by 2023 and BIM deliverables have been appearing contract documentation for more than 12 months. So what does BIM mean for linear infrastructure and how is it going to improve construction processes?
Seymour Whyte is running a BIM pilot as part of their $170 million Mudgeeraba to Varsity Lakes M1 upgrade, and has been wrestling with what BIM means for road construction for more than a year. This presentation takes a look at BIM learnings from M2VL, BIM from the designers perspective as well as the practical applications on site.
Time & room
2.00 pm–2.30 pm in Hall M
Mr Chris Power
Date & venue
Friday, 25 October 2019 at the Adelaide Convention Centre