List of products by author: S. Waelchli

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  Cross-City-Link – Optimization of the Smoke Extraction System

  Abstract: The approximately 5 km long Weinberg Tunnel, the enclosed ramp towards Zurich Altstetten sta-tion, and the 420 m long railway station “Löwenstrasse” together form the Cross-City-Link under-ground tunnel system. In normal operation the system is naturally ventilated due to the piston effect of the trains and the ambient portal pressure differences. No mechanical ventilation is re-quired for a...

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