这World Engineering Day我们回顾六次，我们目睹了英国铁路周围的壮观工程。
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1 – Farnworth tunnel breakthrough
What does digging through a tunnel look like? Well, in 2015, Britain's biggest tunnel-boring machine broke through the Farnworth Tunnel in Bolton. The next stage of a reconstruction project for Farnworth tunnel would soon begin. We enlarged Farnworth tunnel to house two electrified lines, as part of our Railway Upgrade Plan to give you better and more reliable journeys. Electrification of the line from Manchester to Preston, via Bolton – one of the busiest in the north west of England – would help create more space on the route for more passengers.
2 - 隧道内的隧道！
这是11,000吨，比艾菲尔铁塔更多，是英国工程首先。在1月，我们将这种巨大的弯曲混凝土盒推在英国最繁忙的铁路线上，彼得伯勒附近。实际上，我们推动了这个隧道内的这种混凝土盒 - 一个小时内只需150厘米。阅读更多。
3 – The time we jacked up a bridge
One of our all-time favourite modern engineering moments was when theRail Safety and Standards Board (RSSB)teamed up with Network Rail and the运输部to try to find ways to avoid reconstructing bridges during electrification projects.
Overhead line equipment has to be installed to电气化铁路。这usually means there needs to be a greater distance between the railway and any bridges above, so the overhead equipment fits beneath the bridge. Typically, the methods to create this extra headroom are either lowering the track or demolishing the bridge arch and replacing it with a precast concrete unit.
Where possible, we avoid reconstructing bridges because it’s usually the most expensive option and can disrupt the road and rail network. It can be the best choice if a bridge is in poor condition but technical alternatives can provide solutions that avoid this costly reconstruction.
One of the proposals that made it to this final stage of our collaboration with RSSB was fromFreyssinet.andBill Harvey Associates, which developed thebridge-jacking solution ElevArch。它现在拥有英国和国际专利，并赢得了众多行业奖项。
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4 – What do lasers have to do with a Victorian railway bridge?
11月，激光扫描仪和无人机的每一寸标志性的罗布格高架桥是主要的修复项目的一部分，以确保其未来为您的旅程。
一种n essential upgrade to brickwork and drainage got underway on the 144-year-old structure, which carries the historic Settle to Carlisle railway 400 metres across the Ribble valley.
作为北约克北铁路项目投资的额定，北约克郡最可识别的铁路图标是3D扫描并将验船师的计算机型号变成了一台电脑型号。
这种详细的数字娱乐将帮助工程师立即进行维修，并密切关注未来任何进一步关注的地区。
Gallery: the stunning Ribblehead Viaduct
5 – Seventy-thousand images a second!
我们支持我们减少延迟造成的延误的能力trackfaults, improving safety and saving the taxpayer millions of pounds.
In January 2019, we opened a second Plain Line Pattern Recognition (PLPR) facility in Derby to increases our capacity to monitor, inspect and fix track faults.
PLPR is an important part of our ‘predict and prevent’ strategy. It’s state-of-the-art technology that monitors and records track condition information, and can find issues such as missing fasteners, excess ballast and ineffective rail clamps.
一种舰队of five monitoring trains, including theNew Measurement Train (NMT)– the most technically advanced train of its type in the world – uses it.
安装在列车下面的摄像机每0.8mm捕获图像，每秒拍70,000张图片at the top speed of 125mph.
PLPR识别潜在的缺陷，并将其发送到我们在德比的专家检验团队中。然后，本地轨道部分经理接收有关确认缺陷的信息，使工程师能够更有效地瞄准跟踪维护。
6 – Liverpool Lime Street enters the fourth dimension
我们在2018年10月正式完成的利物浦石灰街站较巨大的升级，使用虚拟现实在工作准备期间进行4D建模 - 这是铁路的新兴，但大幅渐进的技术应用。
这减少了一部分的时间需要跟踪一个d the potential to impact on train services. It also allowed planners to avoid overlaps between different engineering teams and identify potential risks and hazards that could have potentially affected the railway’s reopening.
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How we built a railway station in six months
Rail innovation and development centres