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List of products by author: T. Weiner
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KOINOR - Development of a Sprayable Geopolymer Concrete for Fire Protection Improvement and Upgrading of Underground...
Abstract: The existing tunnel structures in Germany are characterised by progressive ageing, which is particularly evident in the tunnels’ inner lining. In addition, under the influence of incisive events and new research results over several years, the government has reviewed and updated some of the guidelines under which these buildings were designed and constructed. If deterioration now requires the...
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Metro Doha Green Line – Challenges delivering a world class urban tunnelling project
Abstract: As part of the “Qatar National Vision 2030” the capital of Qatar – Doha – is supposed to be transformed into a modern center for economy, trade and sports. A main item to achieve this is the establishment of an efficient infrastructure with modern means of transportation. The Design & Build – Project Green Line Underground has been awarded to a Joint Venture (JV) composed of PORR (lead),...
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Prediction of the dispersion of soil in slurry shield tunneling
Abstract: Shield machines with a slurry supported face are typically used in non-cohesive soils. Still, these machines quite often also encounter cohesive soils or soils with a high content of fines. In fine-grained soil it cannot be avoided that a certain amount of the fine particles disperses into the slurry. On the one hand this effect is welcome because to a certain extent it enhances the rheological...
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