Bringing safety, productivity with laser scanning

Author:Anzhelika Kuznetsova

炼油厂，冶炼厂和其他植物环境是非常复杂的结构，可能会带来主要危害。任何高度复杂的植物和商店的建筑和重建都需要基于实际站点数据的详细工程，并严格对施工和安装活动进行严格的监视。

在大多数重建项目,新结构和utilities to be installed are connected to the existing infrastructure, so high tie-in precision is necessary. It is quite common in the industy that the as-built drawings are not available, or the construction and installation works do not meet quality standards. There is a great need to collect actual field data on the existing structures and utilities.

IBCON是一家高质量输入数据的提供商，用于调查，设计和构建全新和重建项目，已参与了过去11年提供IT支持的大型工业项目。今天，IBCON使用Leica Geosystems技术和AVEVA软件专注于炼油厂和冶炼厂。

重新建设信任

One of IBCON projects efficiently using these technologies is the IT support for a smelter construction, the Kola Peninsula. As the customer worked on the project, it faced certain negative factors that prevented it from meeting the deadline, and led to financial losses. To rectify the situation, the contractor hired IBCON construction and rebuilding IT support services, enabling project completion in due time.

The job was to reconstruct the geometry and position of the existing structures to be built/rebuilt as fast as possible. The total area amounted to95,200 sq m. The data were presented as a number of reports for the customer. The reports indicated any deviations betweenas-designed and as-builtgeometry and position of the structures. These reports have helped the customer to make smart project decisions.

The project faced many challenges, such as:

• Huge scope
• Tight schedule
• Harsh working conditions on the operating facility (vibrations, steam, dust, hazardous releases)
• 许多在t运行车辆和操作设备he site (welding machines, cranes, trucks, etc.)

在这种情况下，常规的土地测量非常困难，在某些情况下只是不可能的。需要快速，高效的过程，而无需损害调查精度和高分辨率。

Delivering results with laser scanning

The IBCON team used a Leica ScanStation laser scanner. Laser scanning technology最小化测量时间即使对于数万只需数万平方米的站点，也无法访问的区域，同时保持高精度和分辨率。

Laser scanning technology does not require an exact scanner orientation as is the case with the conventional surveying. It enables scanning in restricted view conditions and获取更多信息关于任何隐藏的结构。只有三名公司专家在IBCON进行了现场和内部激光扫描项目，从而大大节省了努力。

Leica Cyclone softwareis used for primary laser scanning data processing. After that, they are aligned to the facility’s coordinate system. Laser scans are stitched by marker or point cloud matching.

平均测量误差为每100个扫描仪位置≈7毫米。随后，将扫描点云导出到构建3D模型的AVEVA E3D。在云点内确定每个对象（钢筋混凝土结构，钢铁工程，设备等），以构建3D模型的几何形状。从AS设计和AS-build文档，唯一的索引和层次结构级别分配给模型中每个3D对象的属性。

生成的扩展3D模型是客户根据客户要求生成报告的工具。由激光扫描数据构建的3D模型与项目开发人员提供的3D模型匹配。通过这种方式，在报告中很容易识别并列出安装结构与预期位置的任何偏差。

In the context of today’s extensive construction environment and its demand for prompt and mass-scale data acquisition about each structure built on a site, laser scanning technology provides complete visibility of any construction object. Such projects cannot be implemented with conventional land surveying tools as the data acquisition rate is very low.

“Surveying with the Leica ScanStation P20 laser scanner makes site surveys easy and visualises complex structures in a simple way,”米特拉科夫说。

上述服务是在项目完成之前和调试之前作为周期进行的。IBCON的构建和重建项目IT支持服务有助于客户在每个阶段迅速做出及时的报告，以监视项目完成，并降低额外的错误整流成本。