建造北方的威尼斯

作者：Karina Lumholt

瑞典首都斯德哥尔摩面对波罗的海，在梅拉伦湖的14个岛屿上建造。市中心旧城区的Gamla Stan是欧洲保存完好的中世纪城市之一。运河上的许多水道和桥是斯德哥尔摩的特征 - 通常称为Beauty 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.

Going underground to bypass Stockholm’s traffic bottlenecks

The Stockholm Bypass project, or Förbifarten, is a new21公里的高速公路crossing 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.

Great precautions have been taken to protect the landscape and surroundings that lie above the ground surface. To protect Stockholm’s valuable nature and historic sites, it has been decided to build approximately18公里总数的21 km through tunnels. Under lake Mälaren the construction will have a depth of65 metres belowthe 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.

在小库尔瓦的建筑物

Leica Geosystems的长期客户Skanska Sverige AB赢得了1260万欧元的合同，用于建造隧道的南入口，将其连接到Scandinavia和最大的高速公路最大的高速公路Kurva的E20高速公路在瑞典。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超出必要的速度。

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 with Leica ConX to transfer model files to the machines and the field crew working on site.

“在处理不同的承包商在网站like this, it is important that all are working with the latest updated files,”霍姆伯格解释说。“Leica ConX helps me to track the machines from the office and transfer files to the machine in real time so everybody is on the same page.”

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 Geosystemsand interfaces with Epiroc’s HNS sensor system.

The drill rig follows a digitally-defined pattern to drill holes into the rock for blasting. Traffic is stopped on the two highways that go around the job site, and blasting of the rocky underground is performed every day at either 10 A.M. or 2 P.M. The blasting is done under a carpet of old truck tires that are sewn together to avoid rocks falling onto the two roads.

“如果岩石无意间落在高速公路上，则两个车轮装载机在两侧准备清理道路，以确保道路在尽可能短的一段时间内被阻塞，”explains Dana Matti, project manager at Skanska Sverige.

Staying connected

GranskogensGräv公司的所有者Nicklas Gustafsson是在现场工作了一年半的承包商之一。Gustafsson在现场使用了新的Leica MCP80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。

Gustafsson explains that it has been a difficult underground with rocks and high ground water level, and when building in the one of the busiest urban areas in Sweden it is important to have reliable technical solutions that minimise downtime.

“Solutions 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.I have worked with the machine control solution from Leica Geosystems on my Liebherr 926 Compact excavator for four years，” Gustafsson解释说。“I am online on ConX for most of the day and receive my reference files from Pontus directly on the panel.”

Leica Geosystems的解决方案是在该大项目中构建互换，隧道和临时港口的多个阶段的关键。机器控制解决方案，总站，棱镜和左侧地理系统的扫描仪是在bob apple此规模上快速有效地构建项目所需的众多产品中的一些。bob综合app下载