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Urban Tunnelling Challenges--Mechanised Tunnelling to Improve Life Quality in Cities

机译：城市隧道挑战 - 机械化隧道，提高城市生活质量

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The biggest hard rock double-shield tunnel boring machine (TBM) in the world, with a diameter of 12.4 m, is currently excavating the North-South Bypass, which includes a crossing under the Brisbane River, Brisbane, Australia, to relieve the often congested road traffic in the city centre. Ten years ago a 10.7 m Mixshield giant helped to handle the Olympic Games in Sydney linking the airport with the city centre for an improved transportation of fascinated visitors. In Shanghai, currently the biggest TBM in the world with 15.43 m diameter presents excellent performance rates; and in Paris a convertible Mixshield could be quickly changed from earth pressure balanced (EPB) to slurry type in order to handle the very heterogeneous ground conditions. In Madrid a 15.2 m EPB giant finished its tunnel job four months ahead of schedule. Large-scale TBMs have proved their economic and innovative potential to create the current and future underground architecture of mega-cities. TBM technology has made further large innovative steps in the last decade. State-of-the-art is a TBM for very heterogeneous ground conditions comprising hard and soft rock with additional high groundwater pressure. The machine concept is adapted to the various ground conditions and allows for a quick and flexible application. Ground treatment by means of additives developed to a helpful tool in this connection. To meet the special challenges of urban tunnel projects of nowadays it is of very high importance, beside applying highest developed technology of TBM, to have a comprehensive technical support during the project phase and to develop positive relationships between all participants of the project which last longer than only for one project.
机译：世界上最大的硬岩双盾隧道镗床（TBM），直径为12.4米，目前正在挖掘南北旁路，其中包括布里斯班河，布里斯班，澳大利亚的横穿，以减轻经常拥挤的道路交通在市中心。十年前，10.7米的MixShield巨人帮助在悉尼处理奥运会，将机场与市中心联系起来，改善着着名的游客的交通。在上海，目前世界上最大的TBM，直径为15.43米，呈现出色的性能率;在巴黎，可以将可转换的混合罩从地球压力平衡（EPB）迅速变为浆料类型，以处理非常异构的地面条件。在马德里，15.2米EPB巨头在计划提前四个月完成隧道工作。大规模的TBMS已经证明了他们的经济和创新潜力，以营造大众城市的当前和未来地下建筑。 TBM技术在过去十年中取得了进一步的巨大创新步骤。最先进的是用于非常异构的地面条件的TBM，包括硬质和软岩，具有额外的高地下水压。机器概念适用于各种地面条件，并允许快速灵活的应用。通过对此连接的有用工具开发的添加剂进行地面处理。为满足如今的城市隧道项目的特殊挑战，在应用TBM的最高发达的技术方面，在项目阶段进行全面的技术支持，并在持续时间更长的项目的所有参与者之间具有全面的技术支持而不是一个项目。

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