Building the Venice of the North

Author:Karina Lumholt

面对波罗的海东部,瑞典的帽子ital of Stockholm is built on 14 islands in Lake Mälaren. Gamla Stan in the old town of the city centre is one of the best preserved medieval cities in Europe. The many waterways and bridges over the canals are characteristic features of Stockholm – often referred to asBeauty on Wateror simplyVenice of the North.

The region is facing major challenges and the need for improved infrastructure is becoming more and more urgent. With approximately 30,000 people moving to the capital every year, equivalent to two buses full of people per day, Stockholm is currently one of the fastest growing metropolitan regions in Europe. The transport system in the capital is vulnerable because there is only one north-south connection running through this city of great cultural and natural heritage.

在地下绕过斯德哥尔摩的交通瓶颈

斯德哥尔摩旁通项目或förbifarten是一个新的21-kilometre highwaycrossing the Swedish capital, part of the largest infrastructure projects ever made in Sweden. The planning of this 2.7-billion-Euro project commenced in 2006, preliminary construction started in 2014 and the opening is planned for 2026.

已经采取了重大预防措施来保护位于地面上方的景观和周围环境。为了保护斯德哥尔摩的宝贵性质和历史遗址，已决定建造大致建造通过桶18公里的总共21公里nels. Under lake Mälaren the construction will have a depth of下方有65米the water body. 80 per cent will be financed by a congestion charge and 20 per cent by government funding, but the overall utility value is calculated to be paid back from the resulting economic development and reduced travelling time. With an estimated passing of 145,000 vehicles per day, the journey time through the city is calculated to be reduced to 15 minutes.

Starting at Kungens Kurva in the south and ending at Häggvik in the north, once the Stockholm Bypass project is finished, it will be the world’s second largest tunnel built in an urban area after the Yamate Tunnel in Tokyo.

Building at Kungens Kurva

Long-term customer of Leica Geosystems,Skanska Sverige AB，已经赢得了1260万欧元的合同，用于建造隧道的南入口，并将其连接到小动物Kurva的E20高速公路，这是斯堪的纳维亚半岛最大的购物区，也是瑞典最繁忙的高速公路。这个备受瞩目的项目非常关注安全性，并且不得不减速流量的速度超出了必要的速度。

Pontus Holmberg works as chief surveyor for Skanska Sverige at Kungens Kurva. Holmberg is managing field surveyors and the site fleet that mainly consists of drillers, excavators and dozers from different contractors, many of them equipped with machine control solutions from Leica Geosystems. Holmberg works withLeica ConXto transfer model files to the machines and the field crew working on site.

“When working with different contractors on a site like this, it is important that all are working with the latest updated files,”Holmberg explains.“ Leica Conx可以帮助我实时跟踪机器，并实时将文件传输到机器，以便每个人都在同一页面上。”

The Epiroc SmartRoc T35 driller working on the site is equipped with a3D machine control solution that is tailor-made for Epiroc SmartRoc by Leica Geosystems以及与Epiroc的HNS传感器系统的接口。

钻井钻机遵循数字定义的图案，将孔钻入岩石中以进行爆炸。在工作现场周围的两条高速公路上停止了交通，每天上午10点进行岩石地下的爆炸。或下午2点爆破是在缝合在一起的旧卡车轮胎地毯下进行的，以避免岩石掉入两条道路上。

“如果岩石无意间落在高速公路上，则两个车轮装载机都准备在两侧清理道路，以确保道路在一段时间内被堵塞一段时间尽可能短。”Skanska Sverige项目经理Dana Matti解释说。

Staying connected

Nicklas Gustafsson, owner of the companyGranskogens Gräv，是在现场工作一年半的承包商之一。Gustafsson使用了新的Leica MCP80现场机器控制面板，他对改进感到满意。“The larger screen is easier to read, and the buttons are improved, so that is a great advantage,”古斯塔夫森说。

古斯塔森（Gustafsson）解释说，这是一个艰难的地下，拥有岩石和高地下水位，当在瑞典最繁忙的城市地区建造时，重要的是要拥有可靠的技术解决方案来最大程度地减少停机时间。

“解决方案from Leica Geosystems help us staying connected with the site office and make sure that we have a flexible dataflow to support the workflows on the job site.我已经在Liebherr 926紧凑式挖掘机上使用Leica Geosystems的机器控制解决方案工作了四年，” Gustafsson解释说。“我在线上CONXfor most of the day and receive my reference files from Pontus directly on the panel。”

解决方案from Leica Geosystems are key in the multiple stages of constructing interchanges, tunnels and temporary harbours for this big project. Machine control solutions, total stations, prisms and scanners from Leica Geosystems are some of the many products that are needed for a fast and efficient construction of projects at this scale.