Chris Power has over 20 years’ experience in Survey and Spatial Science and has been walking the “as constructed” BIM concept through its paces for Seymour Whyte and Vinci.
“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 realizing the potential of BIM is to keep design, construction and administration activities connected through a live shared data environment. A well organized 3d spatial database which can provide connectivity, visualization and data entry portals for associated construction systems including scheduling and QA will prove a useful addition, and this means that the data base aspects of BIM need careful attention”.
Make sure you take the opportunity to see how BIM is shaping up for linear construction.
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.