BIM Services​

Certitude Surveys was created with a vision, not only to provide exceptional engineering surveying services, but also to play a leading role in the Building Information Modelling (BIM) revolution. In order to offer a comprehensive range of BIM services to our clients, Certitude Surveys has partnered with Glentworth Group, one of the leading BIM planning and controls consultants in WA. Read on for an overview of our services, and get in touch to find out how you can obtain a new level of efficiency and quality with the BIM revolution. 

Scan to BIM

Collection of high-accuracy, comprehensive and consistent spatial data of the built environment is an integral part of BIM, which, along with modelling, allows us to produce smart, parametric asbuilt models. These are known as a “digital twin” of the physical space or site. They provide a record of the construction process results which is far more useful than traditional pdf asbuilt drawings. During construction, the model can be used for claims, progress validation, quality assurance and clash avoidance. It is ultimately handed over to the client at the completion of the project, integrating with the asset management systems to obtain much greater efficiency and control throughout the project lifecycle.  

The scan to BIM process is conducted as follows;

1. Data collection 
   Data collection is usually completed with a 3D laser scanner, though it can also be done with a traditional surveying total station, in which case the process is called “Survey to BIM”. This is much slower, as each point has to be recorded manually, whereas the scanner collects around 1 million points/second. The only time a total station would be used is where a very high level of accuracy is required, ie ±1mm.
2. Registration 
   Each scanner setup creates a series of dense point clouds, of whatever is visible from each point. These are then merged together in a process called registration. Certitude Surveys uses Leica Cyclone Register, a very powerful program which creates seamless point clouds that can be georeferenced to datum coordinates.  
3. Modelling 
   Features are extracte d from the 3D point cloud using modelling software such as Revit. Parameters for each feature and component are populated with relevant information to create a smart model. The level of detail (LOD) and Level of information (LOI) are two variables which determine what kinds of features are extracted for the model, and how much information is recorded about each one.LOD andLOI will be determined by the client prior to the modelling process to suit their purposes. With a comprehensive point cloud in theirpossession, they can always add greater levels of detail and information at a later date without further site visits being necessary.  

PLANNING 

Effectively managing time on projects with inherent complexity and risk is key to success.  We draw upon years of project planning and commercial management experience and expertise to assist our clients. This experience is combined with cutting edge software systems to achieve a new level in efficiency and interoperability. We provide tailored planning and scheduling solutions to support our clients in the creation, management and effective communication of robust programmes. 

• Tender Planning
• Basis of Schedule & Construction Methodology Preparation
• Progress Monitoring and Reporting
• Earned Value Analysis & Project Controls
• Schedule Risk Analysis (SRA)

*P6 / MSP / SYNCHRO  

4D PLANNING 

4D BIM involves time-related information being linked to different components of the Building Information Model.  Specific elements of work, including details on procurement, construction and installation period are all part of the 4D Model. 

This approach to project controls and scheduling provides unparalleled graphical representations of schedules. Whether it is for Development Schedules, Working Schedules or for Forensic Analysis, 4D Planning allows traditional Gantt charts to be better communicated to all project team members and stakeholders to capture enhanced feedback, achieve greater clarity, reduced project risk and a develop a more robust and commercially secure project plan. In addition, we can carry out high-accuracy spatial data acquisition to support or contest claims and for asbuilt verification.  

DELAY AND DISRUPTION ANALYSIS

By adopting best industry practice principles, blended with a wealth of hands on construction experience and technology applications, Certitude Surveys in collaboration with Glentworth support clients with the preparation of, and response to, delay and disruption related claims.  Our team of qualified and experienced Planners and Quantity Surveyors provide the necessary technical expertise to professionally handle:

• Delay Analysis
• Disruption Analysis
• Quantum Analysis
• Extension of Time Preparation and Review