Capturing reality in one of the world’s busiest airports

案例分析

作者:凯文·科迪罗(Kevin Cordeiro)

Changi Airport in Singapore is famed for its calm atmosphere and the smooth running of all operations at the airport. Its long-standing reputation as the world’s leading airport can be largely attributed to the management’s progressive and innovative approach to the running of the airport. Changi Airport Group (CAG) was keen to look into how the latest laser scanning technology could be used to maintain its facilities to the highest standards in the long term.

Taking a long-term view

为了进一步增强诸如设施管理等方面的持续,樟宜机场集团需要一个准确,精确的3D模型,以捕获建筑,结构和MEP终端的各个方面。

在关注未来的情况下,樟宜机场集团意识到了这一机会,可以使用AS-Build Bim(虚拟复制品)实现长期价值,即使在翻新和扩展工作完成后,这也是一个有价值的工具。JTR注册测量师(JTRS)被委托进行扫描并创建T2的BIM。JTR注册测量师是一家专业的土地测量公司,以其渐进的测量和使用最新设备的渐进式方法而闻名,以提供最高的准确性标准。他们是3D激光扫描和摄影测量法 - 构造BIM所需的关键实践。在该项目中,JTRS与BIM解决方案服务提供商Geodelta System Sdn Bhd合作。

在调试BIM时,樟宜机场集团成为新加坡最早采用新的BIM技术进行未来重建项目的公司之一。该扫描将是新加坡生产的最大的扫描到BIM项目之一,需要超过60万平方米的地板区域,包括在建筑天花板上方的MEP方面,以扫描以极端数据清晰度和尖锐的分辨率来扫描造型。


同步和平稳操作

由于多个政党参与了未来的翻新和扩展工作,因此BIM构建了所有图纸,计划,高程,部分和观点。由于这些图纸是从模型中提取的,因此将更改合并到模型中并自动更新。这种方法使项目成员能够使用一个连贯的计算机模型系统进行协作设计和构建,并最大程度地减少对现场访问的需求进行进一步的手动检查。

该项目的第一阶段涉及建立一组新的控制网络,其中JTRS为整个扫描设定了144个控制点。地理参考将为未来的项目提供一组同质信息。这使多项扫描的自信,精确的注册和地理位置可以传递给承包商,以便每个人都可以在同一基础上工作。对于控制测量,JTRS使用了Leica Nova TM50,六个棱镜和一个Leica DNA03数字级别。

Jimmy Tan, Director and Registered Surveyor at JTRS commented,“ Leica Nova TM50使我们能够在每个设置上非常快速测量四个角度,并具有测量水平和垂直角度所需的高角度精度。通过充满信心地测量每个设置的许多角度,TM50急剧加快了在所有三个樟宜机场码头的控制调查网络映射的完成。”


大规模的精度

为了解决创建BIM模型的精确和规模的双重挑战,JTR使用Leica GeoSystems集成扫描解决方案,其中包括一个Leica Scanstation P40单位和两个Leica BLK360与Leica Geosystems的软件解决方案一起成像激光扫描仪。

The ScanStation P40 was selected based on its ability to reach a very high density and produce high resolution and accuracy - up to 1mm spacing of data - over the huge space combined with excellent performance and reliability. The ScanStation P40 was used for the control scan of the entire building and large areas like the departure hall and staircases, while the BLK360 addressed the small and more confined areas.

“Leica Geosystems’ integrated scanning solution produces rich data and the modelling is not only more accurate than competing solutions, but it is also able to capture and scan even the smallest of details. Whilst other products are able to offer precision in small areas, they may not be able to deliver the same quality of data over such a large area, which was so important on this project,” Jimmy Tan commented.

无缝整合

Leica Cyclone寄存器用于注册,管理和处理点云数据。作为在新加坡生产的最大的扫描到BIM项目之一,扫描量达到了1 TB的数据。扫描的总面积为Changi机场2号航站楼生产BIM型号覆盖了两层 - 地面以及机械电气和管道(MEP)信息的天花板区域。总体而言,设置了23,000多次扫描,以创建BIM模型,以用于MEP的体系结构和结构和LOD200的LOD300。使用Leica GeoSystems集成扫描解决方案,JTRS能够在保持稳定性的同时处理这一卷。

Cyclone REGISTER’s visual alignment not only mitigated the need to place targets on walls to align but also allowed JTRS to manage tens of thousands of scans in a single registration. The ease with which these scans could be positioned based on common geometry further accelerated the modelling process. Thanks to the high-contrast visualised point cloud, the vast number of scans could easily be overlaid to create the mesh from which the BIM is constructed.

完成扫描的3D激光扫描和合并后,可以将点云导出到Leica Jetstream中。然后,樟宜机场组和系统所有者可以查看点云,走一条演练路径,并从数字模型中进行进一步的测量。

Jimmy Tan noted, “软件集成绝对是无缝的。一旦我们以正确的格式导出数据,它就可以与其他多个软件平台(例如Revit)接口。然后可以根据客户端的需求(CAG)来量身定制输出。

通常的公关ocessing the data integration of such a huge scan would be very time-consuming but using the Leica CloudWorx plugin the team were able to integrate all the point clouds into Revit saving up to 40% of time in building the BIM model.”


提供持久的价值

“在如此庞大的项目中,效率至关重要,我们无力浪费时间培训团队或应对技术挑战。尽管硬件和软件的易用性以及所需的最小培训,但Leica Geosystems团队从头到尾都提供了全力支持。

从测量师的角度来看,Leica Geosystems解决方案的成本值给我们留下了深刻的印象。我们使用DNA03数字水平之类的设备已有10多年的历史了,它仍然处于完美状态。但是,最大的价值是我们在此处为客户(CAG)生成的输出,因为数字模型现在可以使用数年 - 甚至几十年了,”吉米·谭(Jimmy Tan)结束了。

Changi Airport’s reputation as the world’s leading airport can also be credited to its focus not just on functionality, but also on aesthetics. The use of the 3D laser scanners enabled JTRS to capture even detailed image data incorporating the onboard colour and texture mapping without disrupting the constant flow of passengers in one of the world’s busiest airport.

The BIM model augmented missing design data and created a data-rich connected workflow, enabling CAG and future contractors to explore and experiment with plans and designs for the airport even without entering the facility – helping Changi Airport to retain its reputation as the world’s best airport.

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