oa Civil Engineering = Siviele Ingenieurswese - Design and construction of the Kowyn's Pass rockfall shelter

Volume 24, Issue 9
  • ISSN : 1021-2000



The site of the Kowyn's Pass shelter is situated on the road traversing the escarpment between Graskop and Bosbokrand in the north-eastern Transvaal. The area was subject to a major fall of rock In 1973. Further falls, however, continued after the suspect area was anchored. The Transvaal Provincial Roads Authority decided towards the end of 1977 to construct a reinforced concrete rock fall sheller as a permanent and fall-safe protective measure. The design of the structure, of which construction was completed in August 1980, is discussed in the paper. A brief review of the state of the art of designing rockfall shelters against impactive loading is also presented.

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