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Abstract: An exceeding number of high-voltage power lines are and shall be transferred underground. Beside non-accessible systems micro-tunnelling-solutions have become very popular. A major challenge of such systems is the removal of cable heat to allow an unrestricted power transmission. Within a Swiss National Grid (swissgrid) study a numerical code (incl. transient simulation of conductor...
Abstract: The BBT represents the key element of the planed railway link between Munich and Verona and therefore of the European high performance railway network (cf. Fig. 1). With its length of more than 55 km (64 km including all existing tunnel connections) this tunnel system will be amongst the world’s longest traffic tunnels (cf. Fig. 2). The project consists in the excavation, lining and...