DESIGN AND CONSTRUCTION OF THE KOWYN'S PASS ROCKFALL SHELTER

A brief description is given, together with photographs, of the rockfall shelter situated on the road traversing the escarpment between Graskop and Boskoprand in the north eastern Transvall, South Africa. The geology of the rock face comprises basement archaen granites outcropping at the road elevation, overlain by arkoses, lavas, siltstones and quartzites of the dominion reef series. The rockfall shelter comprises the following basic elements: horizontally anchored mass concrete foundations, reinforced rockfill behind the rear wall, gabions around the top perimeter and an uncompacted earthfill on top. Horizontal sway arresting anchors tie the structure at the level of the deck slab to the rock face. In view of the intensity of an impact, the structure was designed to be as flexible as possible without exceeding maximum deflection. The flexibility of the portal was further increased by providing a hinge at the joint between the deck slab and the outside columns. (TRRL)

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  • Corporate Authors:

    GEOLOGICAL SOCIETY

    BURLINGTON HOUSE, PICCADILLY
    LONDON,   United Kingdom  W1V 0JU
  • Publication Date: 1983

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Filing Info

  • Accession Number: 00382107
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Apr 30 1984 12:00AM