激光扫描在墨尔本最大的铁路项目中留下了印记

Author: Tamara Stakic, Marketing Manager - Leica Geosystems, Australasia

奥斯帕特土地调查澳大利亚(Auspat) is no stranger to servicing large multi-faceted infrastructure projects. The Australian engineering and infrastructure company has been engaged to provide surveying solutions on some of the largest and most significant infrastructure projects in Australia - from the M7 in Sydney, to Eastlink in Melbourne, the Gateway Duplication in Brisbane, the Superway in Adelaide and more recently Melbourne’s Metro Tunnel and Westgate Tunnel projects.

To deliver surveying and spatial solutions on the largest infrastructure projects in the country, Auspat recognises that digital and spatial technology innovation increases value to the client, enhances the quality and boosts productivity for project delivery. Utilising the latest technology allows Auspat to provide the best quality data and services to their clients.

Laying the foundation

The Metro Tunnel Project is the largest rail project in Melbourne, Australia since the City Loop was built in the 1970s. It involves building twin nine-kilometre rail tunnels and five underground stations from North Melbourne through to the Domain precinct, south of the CBD.

Auspat has been engaged on the project since 2018 and have been involved throughout many phases - from diaphragm wall (D-Wall) construction (Arden Station), excavation and early groundworks (station boxes and portals), tunnel entrance excavation, and station construction (Arden and Anzac stations).

The team initially deployed theLeica Nova TS60和Nova MS50 MultiStation要在站点站点和门户网站上进入控制网络。目的是为这些站点建立主要的调查控制网络。对于AUSPAT的团队，必须使用可靠，准确的控制网络，并使用他们成功地在网站周围进行遍历的Leica Geosystems的总站。bob apple

在Arden上还使用了MS50群落来扫描和监视散装土方，以计算每日量并确保进行电台盒进行挖掘进行设计。

Seeing is believing

在开始结构工作和设计验证时Leica Scanstation P40survey-grade laser scanner was deployed. The ScanStation P40 scanner allowed the team to capture quick scans of the site, easily register scans inLeica Cyclone REGISTER（点云注册办公室软件）并导出用于使用的数据Leica Cyclone 3DR，提取线路工作和表面。

Cyclone 3DR was also used for 3D meshing of the Arden station walls and internal structures to assess potential deviations from design using point cloud data and heat maps.

“Our clients value the visual heatmaps, 3D data deliverables and 3D models because it is easy to comprehend and it visually helps to determine and show potential deviations in a complex environment. Also, the point cloud data is highly accurate, and this quality gives the team at Auspat that extra confidence to deliver the perfect data to the client. This visualisation makes it easy for our clients to compare the built structures to the design and to identify any deviations that must be addressed. Another benefit is that we can export our scans in multiple formats that can be used by most of the CAD packages our clients and designers use,” said Mal Friel, senior surveyor Auspat.

A useful application of the ScanStation P40 laser scanner has been the ease and speed at which we can collect data in areas that would be challenging and time consuming using traditional methods.

“这些只是some of the additional value-adds that we can provide to our clients. Once they see the level of detail that a scanner can produce it becomes an easy decision for them. In a three-minute scan we can provide exactly what they required in their brief and even additional data that we didn’t initially set out to capture. This saves the team multiple site-visits,” explains Friel.

Scanning forward

采用激光扫描技术不仅帮助Auspat with deliverables but also helped them to meet project deadlines. Scanning technology allowed Auspat to complete their scans within five to 10 minutes per setup, with only one person needed to operate the scanner and without disrupting other project teams on site.

Auspat have been proud owners of the ScanStation P40 for over 12 months and haven’t looked back. With the addition of a scanner in their fleet, Auspat has expanded into additional services as well as being able to add value to their clients. With the ScanStation P40 scanner Auspat can now scan large areas and extract features or create a 3D DTM far quicker and with a higher level of detail than traditional feature surveys.

弗里尔说：“具有扫描能力使我们能够在诸如铁路走廊和高速公路等复杂环境中进行调查，而无需循环或车道关闭，从而为客户提供了相当大的效率。”

The adoption of scanning technology has made Auspat more efficient and in turn, they have been able to take on more feature survey work with consultancy and design agencies.

“越来越多的项目要求点云，客户对收到的数据印象深刻，这极大地增加了其重复业务的可能性。”弗里尔说。

The ScanStation P40 won over Auspat due to the familiar interface and easy adoption for the team. "Programmes such as the “Resection” and “Traverse” functions on the scanner allowed us to have increased confidence in our data", said Friel.

This meant that with the support and hands-on training from Leica Geosystems Australia distributorC.R. Kennedy扫描专家Sam Hesper，Auspat的团队能够使他们的扫描项目启动并迅速运行，并有信心，支持只是一个电话。

We asked Mal if he had any advice for his peers or other companies thinking about adopting scanning technology. “Spend time understanding the client brief and focus on what’s most important to them. Don’t confuse the client with unnecessary data, present the most beneficial and useful deliverable that addresses the brief.”

What’s next for Auspat?

“我们已经看到，从预制码等扫描和无人机服务的需求增加，验证桥梁梁和检查模具，到大型的民用基础设施项目，要求我们捕获空中图像和批量的土方工程。

‘We want to continue exploring geospatial technology and expanding our capabilities. Having Leica Geosystems and C.R Kennedy as partners gives us access to the latest advances in both hardware and software.

这确保了我们将能够为客户提供调查要求提供最先进的解决方案。”弗里尔说。