Abstract
WE have appreciated many of the difficulties the engineers encountered in the construction of the Simplon Tunnel and have offered our congratulations on the successful completion of the work. But the difficulties that have been most readily apprehended have been those arising from the outburst of water from the hot springs in the track, the high temperature, and the mechanical boring and removal of the rock. In the happy completion of a task of great magnitude, which at one time threatened to end in a catastrophe, people are apt to forget the onerous preliminary work necessary to set out the line of the tunnel, to arrange the gradient so as to provide not only for efficient drainage at either end, but to secure the continuity of the separate tunnels at the point of junction, and so render it possible to work simultaneously at both ends. We are therefore glad to see an article by Prof. C. Koppe in Himmel und Erde for August1 bringing these matters forward, and making us familiar with the work which has been so efficiently carried out by Prof. Rosenmund of Zurich.
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P., W. Survey of the Simplon Tunnel . Nature 73, 30–31 (1905). https://doi.org/10.1038/073030a0
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DOI: https://doi.org/10.1038/073030a0