Today availability of using the high-resolution space imagery, the complex mathematical computational strength of server and GIS technology has created a positive environment on the application of “Geo-remote sensing based scientific computing” technology for designing of the new alignment for pipelines.
The objective is to evaluate the 3D Geospatial Modelling, stereo pair remote sensing technology and 3D visualization technology for designing, development and production of AS-BUILT drawings.
Pipeline Alignment, Terrain Modelling and 3D Visualization:
Unlike the traditional way of designing the Oil & Gas pipeline alignment in which the design engineer manually tries to find out the alternative routes to access areas scheduled for harvest, or a rocky terrain difficult to dig/construct or a difficult crossing features like rail, river etc which may be difficult to negotiate during construction and may delay the progress, a computer-aided 3D geospatial digital terrain Modelling would be the best and technically advance way of addressing the need where the alternative pipeline alignments can be visualized in 3D interactive model. The engineering and socio-economic feasibility can be done on the model and once agreed to final alignment; the cost of the project and working detail drawing (alignment sheets) can be quickly derived out using 3D geospatial terrain model.
The 3D engineering model of final alignment will be used both during the initial phase of planning and also throughout the project life. Once the model is ready it will be used during the construction phase to monitor the progress and once the project is on, it will be used to overlay the HCA and integrity matrix of alignment section.
Computer-aided 3D geospatial digital alignment on terrain model will be comprised of multidisciplinary design data into visually rich virtual reality presentation that everybody can understand and view interactively. This results in more efficient communication, better design solutions and notable time and cost savings. When integrated into the design process, it makes sure that project parties succeed and goals are achieved. Virtual Map truly adds new dimensions into the design process.
The key features of 3D model will be as following:
- Superior visual communication
- Easy to use
- Fun and inspiring – professional presentation
- Design simulation
- Design Analysis
- Earth work quality management
- Cross section view
- Plan, longitudinal profile, cross-sections and 3D presentation
- Notable time and cost savings
- Real-time Construction visualization and progress management
- Applicable till entire life of the project
- Integrated engineering from design to drawing followed by visualization – All in 3D
Further, during all design phases, it is important to be able to present the project in a professional manner. Users can activate pre-defined viewpoints and movement paths or move inside the Computer-aided 3D geospatial digital alignment on the terrain model freely using many different navigation modes. Tools like measuring, groups, object info, search and document links add new dimensions to presentations. It is also possible to save images and animation videos. But most importantly, Virtual Map activates people to communicate and give valuable feedback.
Nowadays, it is beneficial to do what we call “Integration Modelling”. It means a dynamically updated virtual model of all design data from all design domains. During the whole design process, the model is updated constantly to reflect the current design status. The designs can be reviewed using the virtual model instead of multiple paper prints. Viewing the design as a 3D virtual model (3D Visualisation) gives the design process, a whole new perspective. Conflicts like colliding structures, visibility obscuring objects, bad quality geometry or just unnoticed elements are immediately seen in the virtual model. The conflicts on crossing features can be saved as viewpoints with comments and sent back to the designers for fixing. This is an innovative new way of working and results in much better project management and better solutions.
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