List of products by author: Y. Boissonnas

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  Extension of the metro line in the north of Brussels

  Abstract: Brussels subway system is based on a network of metros and underground tramways, the so called “premetros”. The development of the northern part of the city brings the current public transport to capacity. A study of the demand shows that a new subway line is needed. Different alignment and station location options were studied. Otions with twin tubes; double tube and large, two-deck...

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  Planning and Realization of Deep Shafts in Tunnel Projects in Switzerland and Austria

  Abstract: Several huge rail tunnel projects are currently under construction in Europe. In order to reduce the construction time for long tunnels at great depth intermediate headings have to be planned and realized by building deep shafts. The shafts serve as points of attack for tunneling and/or as ventilation shafts during construction as well as during operation of the facility. The...

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