oa Civil Engineer in South Africa - Du Toitskloof Tunnel : a geotechnical overview

Volume 30, Issue 1
  • ISSN : 0009-7845



A comprehensive geotechnical investigation including a pilot tunnel was carried out for the Du Toitskloof Tunnel. These investigations highlighted zones where special precautions had to be taken and significantly reduced the risk of unforeseen conditions, thus allowing more realistic tender prices for the various phases of the project.

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