Murphy Surveys were one of the first companies in Ireland to introduce Laser Scanning to their services range and continue to provide clients with the most economic BIM solutions to meet their needs.
Murphy Surveys provide an exclusive 3D surveying and CAD/BIM modelling department to encompass retrofit, refurbishment and renovation projects supporting the BIM process from the project output. The company offers bespoke data processing software and tailored workflows ensuring clients get value and precision from their BIM investment.
One of the stumbling blocks to many clients using laser scans directly in BIM projects is the perceived ‘Bulk’ size and lack of knowledge or ability to use and store scan information. Murphy Surveys have many methods for using laser scan information, delivering scan information and hosting information.
Colour Laser scans are instant records of site conditions and can be accessed any time afterwards, even years later, as a complete visual record of a site at that given time in complete 3D space. It captures any feature and surface and is used as a record for archiving, conservation or for future design works that need to rely on existing information.
Once a site is scanned and registered this can instantly be linked into a BIM model environment. This is used as the background to show the surveyed building so that models can be produced which enables further uses and analysis.
Murphy Surveys regularly scan sites at different intervals to track construction progress and link these into BIM environments instantly to check and verify models for clash detection purposes which reduces rework and costs associated with this on sites.
Complex sites require frequent surveying to reduce rework of service installation as there are many sub-contractors working at different schedules and speeds that result in clashed service routes quite often. Other problems associated with complex facilities are duplication or misreading of 2D information resulting in further clashes with other disciplines.
The solution is frequent laser scanning of services using Murphy Surveys customised workflows. This allows instant verification of installed items versus modelled design items at staggered intervals. This helps model information to be analysed and updated quickly and more frequently before it gets to site, reducing waste and downtime.
Hosting and Using Laser scan information
Clients can view laser scans instantly without the need for extra software or storage capacity. Murphy’s can host scan data in the Cloud and send a link to clients to view survey scans through a web browser. This allows users to view scans from any position on a site, rotate, pan, zoom, and measure any object in the survey, while viewing it from multiple angles from aerial positions or bubble views that operate like Google Streetview would.
Scans can also be delivered on hard drives so they can be linked directly to a BIM project. In any BIM view, sections and plans will cut laser scans the same way as model elements allowing direct comparisons to models. All scans are set up in true coordinates but can be delivered in local coordinates too depending on project requirements so there is no need to manually adjust. Staged scans can allow multiple linking opportunities in a BIM that allow construction progress to be viewed easily and sequenced, further reducing time wasted gathering this information otherwise.
When successfully integrated to BIM projects direct usage of laser scans increases project success and understanding and provides for leaner and reduced costs associated with construction projects.
Future Innovation Today
Murphy Surveys have introduced a new division murphyUAV, the technology of the Unmanned Aerial Vehicle (UAV) integrates with the company’s existing BIM solutions. Areas which were previously thought inaccessible, such as rooftops, can now be captured using the UAV. The external data collected by murphyUAV can be merged with internal scan data to create a more fully rounded point cloud of the building both internally and externally.
Murphy Surveys see the importance in continual investment in both technology and people in order to increase the capabilities of their services and ensure clients get the most economical solution to their BIM requirements.