激光扫描在墨尔本最大的铁路项目中留下了印记

作者：塔玛拉·斯塔基奇（Tamara Stakic），市场经理-Leica Geosystems，Australasia

Auspat Land Survey Australia（AUSPAT）对为大型多面基础设施项目提供服务并不陌生。澳大利亚工程和基础设施公司已聘请为澳大利亚一些最大，最重要的基础设施项目提供调查解决方案 - 从悉尼的M7到墨尔本的埃斯特林克，布里斯班的网关重复，最近是阿德莱德的超级路等等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.

奠定基础

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.

自2018年以来，奥斯帕特（Auspat）一​​直参与该项目，并且在许多阶段都参与了整个阶段 - 从隔膜墙（D -Wall）建筑（Arden Station），开挖和早期基础工程（车站和门户网站），隧道入口和车站建设（Arden和Anzac站）。

The team initially deployed theLeica Nova TS60andNova 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.

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(point cloud registration office software) and export the data for use inLeica Cyclone 3DR, to extract line work and surfaces.

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.

“我们的客户重视视觉热图，3D数据可交付成果和3D模型，因为它易于理解，并且在视觉上有助于确定和显示复杂环境中的潜在偏差。此外，点云数据非常准确，这种质量使团队在奥斯帕特（Auspat）提供了额外的信心，可以将完美的数据传递给客户。这种可视化使我们的客户可以轻松地将建筑结构与设计进行比较，并确定必须解决的任何偏差。另一个好处是，我们可以以多种格式导出扫描，我们的客户和设计师都使用大多数CAD包装。” Auspat高级测量师Mal Friel说。

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.

“这些只是一些广告ditional 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

Adopting laser scanning technology not only helped 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.

"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", said Friel.

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，客户对他们所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.

这意味着，澳大利亚分销商Leica Geosystems的支持和动手培训C.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.

我们问MAL，他是否对自己的同龄人或其他考虑采用扫描技术的公司有任何建议。“花时间理解客户的简要介绍，并专注于对他们最重要的事情。不要将客户与不必要的数据相混淆，而是提出解决简介的最有益和有用的可交付。”

What’s next for Auspat?

“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 Geosystems and C.R Kennedy as partners gives us access to the latest advances in both hardware and software.

这确保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。