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Extending surface water drainage at Paris Charles de Gaulle Airport

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The New Suez Canal Project in Egypt comprises a new 72 km long canal branch which runs parallel to the existing 190 km long Suez Canal and runs from Deversoir to al-Balah. As part of the new development aimed at bring major economic benefit to this part of the Middle East, four new tunnels are being constructed running beneath the Canal to connect the Sinai Peninsula to the Egyptian mainland.

Two of the tunnels are for road traffic and are located at Port Said and the other two tunnels (also for road traffic) are located in Ismailia, an industrial zone west of the Gulf of Suez.

The road tunnels in Ismailia reach about 50 m depth, over a 4.8 km length with a 10.6 m inner diameter. Each tunnel has two 3.75 m wide lanes for vehicles. Whereas the road tunnels in Port Said have the same geometrical parameters, but being 3.2 km long they are a bit shorter.

Herrenknecht has provided four TBMs for the construction of the tunnels. Having started the first of the Ismailia tunnels in November 2015, the first TBM recently achieved breakthrough on this 13.05 m diameter, 4,842 m long bore on 3 December 2017. The next TBMs followed in a 1-2 week break through rhythm on 14 December 2017 (S-959), 23 December 2017 (S-960) and the last on 4 January 2018 (S-961).

The client was the Egypt Armed Forces, with the main construction companies in Ismailia being Petrojet and Concord for the TBM S-958 and TBM S-960 works. The subcontractors for the TBM operation were CMC and Razel. In Port Said the Joint Venture was built by Orascom and Arab Contractors for TBM S-959 and TBM S-961 and the TBM operation was supported by Wayss und Freytag.

At the time of writing, all 4 tunnels are at or near completion in terms of tunnelling but there are still are works on cross-passages, road surfaces and interior construction/fitting-out to be completed.

Supporting the tunnelling process, VMT has provided several of its world-leading tunnelling product lines including:

Special thanks were given to the VMT site team by VMT’s project engineer, Robert Schuppenhauer, for their work on installation of these systems and their patient support of the jobsite during the advance phase to the successful breakthrough. In particular, thanks go to Hassan Abourrig and Peter Bläsi for their work on the TUnIS Navigation TBMLaser; Steffen Belz and Norbert Bittmann for their work with the Segment Documentation System SDS and Jochen Kauselmann for his work on the IRIS system.

Zur Verstärkung unseres Marketingteams am Standort Bruchsal (bei Karlsruhe) suchen wir zum nächstmöglichen Zeitpunkt eine: Marketingassistenz (m/w) mit dem Schwerpunkt Eventmanagement in Vollzeit oder Teilzeit.

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VMT GmbH
Sandra Dittes
Stichwort: Marketingassistenz in Voll- oder Teilzeit
Stegwiesenstraße 24
76646 Bruchsal
personal[at]vmt-gmbh.de

Zur Verstärkung unseres Projektmanagementteams der Bereiche Navigation, VDMS (VMT Data Management System), SDS (Segment Documentation System) und Monitoring am Standort Bruchsal (bei Karlsruhe) suchen wir zum nächstmöglichen Zeitpunkt eine: Assistenz (m/w).

Ihre Aufgaben:

Ihre Voraussetzungen:

Wir bieten:

Haben wir Ihr Interesse geweckt?

Dann senden Sie uns bitte Ihre aussagekräftige Bewerbung, ausschließlich als PDF, mit Ihrem frühestmöglichen Eintrittstermin und Ihrer Gehaltsvorstellung per E-Mail an:

VMT GmbH
Sandra Dittes
Stichwort: Assistenz Projektmanagement
Stegwiesenstraße 24
76646 Bruchsal
personal[at]vmt-gmbh.de

Zur Verstärkung unseres Teams im Bereich SDS (Segment Documentation System) – ein datenbankbasiertes Logistik- und Materialflusssystem, das weltweit auf Tunnelgroßbaustellen zum Einsatz kommt – suchen wir am Standort Bruchsal (bei Karlsruhe) zum nächstmöglichen Zeitpunkt einen: Projektingenieur (m/w).

Ihre Aufgaben:

Ihre Voraussetzungen:

Wir bieten:

Haben wir Ihr Interesse geweckt?

Dann senden Sie uns bitte Ihre aussagekräftige Bewerbung, ausschließlich als PDF, mit Ihrem frühestmöglichen Eintrittstermin und Ihrer Gehaltsvorstellung per E-Mail an:

VMT GmbH
Sandra Dittes
Stichwort: Projektingenieur SDS
Stegwiesenstraße 24
76646 Bruchsal
personal[at]vmt-gmbh.de

Paris Charles de Gaulle Airport is the largest international airport in France and amongst the busiest in the world handling almost 66 million passengers in 2016.

As part of the ongoing maintenance programme for the airport two new surface water drainage pipelines are required beneath the airport. Due to the complexities of construction and the high degree of security required at the airport as with all airports in the modern age, it was decided to utilise microtunnelling as the preferred option for the installation of the pipelines.

Joint venture contractor Valentin/Eiffage was appointed to complete the microtunnelling works and elected to use a Herrenknecht AVN microtunnelling machine for the job.

For the Charles de Gaulle Airport project the microtunneller was to install two drives of 2,500 mm in diameter as straight bores over lengths of 630 m and 580 m respectively.

To ensure accuracy of the drives the contractor decided to utilise VMT guidance systems for the drives selecting the SLS-Microtunnelling LT system as the best option. However having had no previous experience of the guidance system VMT provided an engineer to take care of the system installation and carry out all required surveys throughout the first of the two drives which took place between February and July 2017. The second drive was recently started in September 2017.

Whilst the first drive was planned to be a straight line bore, closer investigation of the prevailing conditions and the required location of the drive endpoints showed that the drive would be optimised by the introduction of a shallow curve. So, the VMT engineer on site helped to redesign the bore route with an 18,600 m radius curve which successfully achieved the optimisation of the drive route.

This realignment, the high degree of security at the airport and the prevailing conditions made for a challenging first drive in terms of both operations and access to ensure the safest working conditions for the airport staff and construction crew.

Ultimately the first drive was successfully completed in the required timeframe and the preparation for the second drive is at the time of writing well underway.