List of products by author: D. Alcala

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  EPB Shield Tunnelling Through a Volcanic Chain In Mexico

  Abstract: The contribution gives insight to the challenges and respective engineering measures in the MexicoToluca Interurban Train tunnel project. Each of the twin tunnels has a length of 4.7 km and is excavated with two EBP shield machines of 8.57 m diameter. The tunnel overburden varies from 1 diameter up to 130 meters and hydrostatic pressures up to approximately 6.0 bar are expected. The geology of...

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