The design-reality discrepancy is the most common cause of cost explosion in the construction industry. On average, a geometric deviation of 3-10% between the plans and the completed state implies replacement work, slippage and take-off costs. A 3D laser scanning is what makes this visible, even in time.
During the construction phase, there are three typical situations that cause problems:
The existing condition does not correspond to the plans: when renovating, remodeling, a discrepancy of 5-15 cm between the drawing and reality is not unusual. A wall plane, which is 8 cm deeper, can upset the entire layout.
Deviations arise during constructionWhat is 90 degrees in design is 89.2 degrees in reality. What is 3.00 m in the plan is in reality 2.97 m. These discrepancies accumulate.
Collision is revealed late: two systems (mechanical, structural, electrical) collide in space, but this becomes visible only on the spot, during installation on top of each other. In such cases, it is necessary to redesign, dismantle, build, and the bill will go out of the builder's pocket.
These problems can be measured in money: 5-15% of construction projects typically go to replacement work.
Before demolition or conversion work, 3D laser scanning captures the real geometry. The new designs are not based on outdated drawings, but on measured data.
During construction, it is possible to check whether the works carried out correspond to the plans by means of a periodic survey. Geometric deviations, collisions, and quantitative data are In BIM model They can be automatically compared.
Accurate recording of completed works as as-built documentation. The implementation assessment is part of the handover: the operator takes over the building.
Repairing a collision on the spot is 10-100 times more expensive than filtering it out in a model. Construction collision testing is not a luxury, but a saving.
Three types of collisions are considered in the model:
Geometric Collision: two physical elements hit each other in space (pipe passes through the beam, wall collides with the pipeline).
Clearance collision: two elements are too close to each other relative to the distance prescribed by the norm.
MEP Collision: mechanical systems(air duct, pipe, cable) collide with each other or with the structure.
Documentation of completed work for comparison with the plan. A 3D point cloud and the BIM model can be compared with the original design: deviations can be accurately marked.
Filtering out geometric deviations during the manufacturing or construction process. The periodic survey does not replace the traditional inspection, but complements it: the 3D data objectively shows what is where.
Record the existing status for a demolition permit. The authority can expect accurate, up-to-date documentation, the 3D survey ensures this.
Fixing the final status before handover. For the customer, the for investor and the operator needs both as-built documentation.
The cost of a 3D survey is a fraction of the total cost of the project. Its value is not in the data, but in what it protects:
The exact savings are determined by the size and complexity of the project. When requesting a quote, we help you map out where the greatest risk is.
The price depends on the size of the area and the required scope of services (point cloud, BIM, collision analysis). We will make an individual offer.
The results of the survey, point cloud we can import into the software you use: Revit, ArchiCAD, Tekla, AutoCAD.
An on-site survey is 1-3 days for an average project. Point cloud production is usually 3-5 working days depending on the size.
Yes. We also provide a regular survey service according to the pace of construction.
We document the discrepancy and report it. The decision is yours, we provide the data and analysis.
For all requests for proposals, we provide a free, complete offer tailored to the project, contact us with confidence!
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