Railways
|
|
Solutions for Engineering - Railways |
 |
|
|
|
The gradual improvement of modern rail networks and the emergence of high-speed lines requires the most accurate and efficient surveying and monitoring using equipment from Leica Geosystems.
|
|
|
|
|
|
|
|
Downtown Toronto’s Union Station is Canada’s busiest rail terminal, handling about 65 million passengers annually. Built from 1915 to 1920, it’s considered to be a masterpiece of Beaux Arts architecture, expressed in the ornately colonnaded front and the 76 x 27 m (250 x 90 ft) Grand Hall, which is famous for its marble floor, soaring arched roof, and four-story windows at each end. more
|
|
|
|
|
|
|
|
|
Ten years ago, RTK surveys typically involved two GPS receivers (a base and a rover), a lot of batteries and cables, two radios, a tripod, a pole, and a backpack to carry it all. Today users can choose between a GPS or a GNSS receiver, and a radio or a mobile phone, and it all fits on the pole. With the establishment of RTK networks, they can also choose to work with an RTK rover within these networks instead of setting up their own base-station. Leica Geosystems SmartNet gives users easy access to precise Network RTK data, where they experience the best availability, reliability, and traceability using internationally recognized standards, combined with flexible and affordable subscription options that meet the needs of the local market. more
|
|
|
|
|
|
|
|
|
Modern railway infrastructure often presents technical challenges for developers and builders alike, since high-speed railway tracks have to withstand enormous forces and vibrations. This also applies to the 123 km section between Erfurt and Leipzig/Halle, which forms part of the new Intercity Express (ICE) link between Munich and Berlin. Deutsche Bahn AG customers will eventually be travelling along this stretch at speeds of up to 300 km/h (190 mph), completing their journeys to or from the German capital in four rather than the current six hours. The ICE will travel over six major bridges and through three tunnels, the longest being the twin-tube Finne Tunnel with a length of almost seven kilometers. The precise control of the concrete paver that provided the bed for the subsequent track construction through the tunnel was accomplished with total stations and the 3D machine control system PaveSmart 3D from Leica Geosystems. more
|
|
|
|
|
|
|
|
|
In a world where there is no such thing as absolute stability, movement is an ever present phenomenon. How much something moves and when, is of different importance to different people. One aspect of movement that we take for granted is the adequate, reliable and safe provision of transport infrastructure. more
|
|
|
|
|
|
|
|
|
Due to great economic growth and social development, the People’s Republic of China is rapidly expanding its railway network. The great speed of growth demands quick work: The longterm plan of the MOR (Ministry of Railways) is to expand the network from the current 75,000 to 100,000 km by the year 2020. To increase capacity, both passenger and freight lines are being developed, however, freight and passenger transports are separated. The plan is for around 50 % of the total network to be doubletracked and electrified and for the network to conform to modern standards in terms of quality and comfort. The construction plan also features high-speed lines – including the 114 km section between Beijing and Tianjin, linking a venue of the Olympic sailing competition with the Olympic metropolis Beijing, which went into operation on schedule for the Olympic Games 2008 after some three and a half years of construction. more
|
|
|
|
|
|
|
|
|
With the modernization of its railway infrastructure, Switzerland seeks to connect to the European high-speed train network and achieve a reduction in the amount of the transit traffic on its roads. One of the key projects is the “Alp- Transit Gotthard”, at the heart of which is the Gotthard Base Tunnel: A 57-km-long twin-tube railway tunnel and the longest tunnel in Europe. A challenge to the surveyors – under and on the mountain. more
|
|
|
|
|
|
|
|
|
The E18 Bjørvika project, scheduled to be completed in February 2010, will improve the environment of Oslo’s inner city and enhance the area around the new opera near Bjørvika harbour by moving traffic underground – and under water. Part of this ambitious project is a subsea tunnel – the first one ever built in Norway – consisting of six 100 m long elements. The shape of the tunnel is an additional challenge for the engineers: each element is curved, and some of them were built on a flat floor in the dry dock, but will have to fall to the seabed to reach their final destination. A case for Leica Geosystems’ High Definition Surveying™, as told by Frode Edvardsen from contractor Skanska in Norway. more
|
|
|
|
|
|
|
|
|
Ranked among the largest stub terminals in Europe, Leipzig's main rail station is one of the most important transportation nodes in Central Germany's regional and long-distance public transport system. The stub terminal certainly offers travellers easy access and convenient connections but its architecture makes changes in the direction of travel very time-consuming and takes up a much greater area than a through station would. One of Germany’s most complex tunnel projects shall end this situation: The City-Tunnel Leipzig. more
|
|
|
|
|
|
|
|
|
Positioning of track on the Channel
Tunnel Rail Link (CTRL) using automated
3D control more
|
|
|
|
|
|
|
|
|
In early November 2003, the first fully
automated GradeStar-TPS 3D Dozer control
system in Europe was installed at the
Hydrex site in West Drayton, UK. The
GradeStar machine control system, based
on the robotic TPS1100 Total Stations
series, was installed on a Komatsu D41 P-
6 dozer together with Leica Geosystems
ProControl (the core 1D/2D/3D hydraulic
control system). This 3D machine control
system enables dozer operators to complete
grading work in a shorter amount of
time, more efficiently and with greater
accuracy. more
|
|
|
|
|
|
|
|
|
"The use of innovative 3D laser scanning technology from Leica Geosystems meant that Australian surveying company North Surveys were able to complete the survey of a section of rail network in record time and with an extremely high level of accuracy (Reporter, Issue 49, December 2004)." more
|
|
|
|
|
|
|
|
|
“Without the Cyrax system enabling us to extract data under controlled office conditions we would not have been able to provide results to the timetable required. Also, collecting and labeling data in the field on a discrete point basis is very prone to error and increases time spent in a dangerous environment. Errors in discrete points are difficult to trap and will inevitably mean a revisit to site. With the Cyrax system all data could be fully QA’d by over sampling without time penalties and all processing was done off-site.”
Alan Barrow, Managing Director, ABA Surveying, London, UK more
|
|
|
|
|
|
|
|
|
By the end of 2002, the 219km (136 miles) long train tracks designed for speeds of up to 300 km/h (186 mph) will be completed, thereby drastically reducing travel time between Cologne and Frankfurt, Germany. more
|
|
|
|
|
|
|
|
|
There is some hard work going on in Vancouver, the Canadian Pacific metropolis. Two LEICA TCA2003 total stations with automatic target seeking operate up to twenty hours daily along the route of a new stretch of
SkyTrain track. “The beauty of the Leica Geosystems automatic target recognition instrument is that we can also work nights“, says Don Murray. more
|
|
|
|
|
|
|
|
|
Geodetic surveys of Vereina Tunnel - Switzerland
more
|
|
|
|
|
|
|
|
|
A Leica TCA 1800 automatic target recognizing precision total station, controlled by the Leica APS Win Software, was in use when a bridge was moved by 23 metres below the Inter City Express main rail axis Mannheim-Frankfurt. This work on the Mannheim- Blumenau railway line was carried out by the Mannheim office of Bilfinger + Berger Bauaktiengesellschaft.
The surveyor responsible for the measured control of the undertaking H. P. Echsle, describes this operation for our readers. more
|
|
|
|
|
|
|
|
|
The subway is perhaps in many cases the epitome of a nation's transport system. more
|
|
|
|
|
|
|
|
|
The DISTO OEM Module can be permanently mounted for continuos observation. more
|
|
|
|
|
|
|
|
|
|
