Laser Scanning makes its mark in Melbourne’s largest rail project

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.

为了在该国最大的基础设施项目上提供测量和空间解决方案，Auspat认识到数字和空间技术创新增加了对客户的价值，提高了质量并提高了项目交付的生产力。利用最新技术使Auspat可以为其客户提供最佳的质量数据和服务。

Laying the foundation

自1970年代建造的城市循环以来，地铁隧道项目是澳大利亚墨尔本最大的铁路项目。它涉及建造双九公里的铁轨隧道和从墨尔本北部到CBD以南的域区的五个地下车站。

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 TS16 Total StationandNova MS50 MultiStationto get the control network in place at station box sites and the portals. The goal was to set up a primary network of survey control for these sites. A reliable and accurate control network is imperative to the team at Auspat and using the Leica Geosystems total stations they successfully performed traverses around the sites.

The MS50 MultiStations were also used at Arden to scan and monitor the bulk earthworks, to calculate daily volumes and ensure station box excavation was carried out to design.

眼见为实

When commencing structural work and verification of design, theLeica ScanStation P40部署了调查级激光扫描仪。ScanStation P40扫描仪允许团队捕获网站的快速扫描，轻松注册扫描Leica Cyclone REGISTER(point cloud registration office software) and export the data for use inLeica 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.

“我们的客户价值的视觉的热图,3 d数据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 method.

“这些只是我们可以向客户提供的其他一些增值。一旦他们看到了扫描仪可以产生的细节水平，这对他们来说是一个简单的决定。在三分钟的扫描中，我们可以准确地提供他们在简短甚至其他我们最初没有捕获的数据中所需的内容。这节省了团队多个站点访问。”弗里尔解释说。

向前扫描

采用激光扫描技术不仅帮助Auspat实现了可交付成果，而且还帮助他们完成了项目截止日期。扫描技术使Auspat可以在每个设置的五到10分钟内完成扫描，只有一个人需要操作扫描仪，而不会破坏现场其他项目团队。

奥斯帕特（Auspat）一​​直是Scanstation P40的骄傲所有者，已有12个月以上，但没有回头。随着在他们的车队中增加扫描仪，奥斯帕特（Auspat）已扩展为其他服务，并能够为客户增加价值。使用扫描仪P40扫描仪，Auspat现在可以扫描大面积并提取功能，或者比传统功能调查更快，更快地创建3D DTM。

Having the capability to scan has allowed us to carry out surveys in complex environments such as rail corridors and freeways without the need for track or lane closures, providing considerable efficiencies to clients.

扫描技术的采用使Auspat提高了效率，反过来，他们能够通过咨询和设计机构从事更多功能调查工作。

“越来越多的项目要求点云s and clients are highly impressed with the data they are receiving, which greatly increases the likelihood of their repeat business.” said Friel.

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.

This meant that with the support and hands-on training from Leica Geosystems Australia distributorC.R. Kennedyand Sam Hesper, Scanning Specialist, the team at Auspat were able to get their scanning projects up and running quickly with confidence that support was just a phone call away.

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.”

奥斯帕特的下一步是什么？

“We have already seen an increased demand for our scanning and drone services from the likes of precast yards, to verify bridge beams and check moulds, to large civil infrastructure projects asking us to capture aerial images and bulk earthwork volumes.

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

This ensures we will be able to keep offering our clients cutting edge solutions to their survey requirements,” said Friel.