MOBILE SOIL AND ROCK FLOWS. LECTURE GIVEN AT THE FIFTH SOUTHEAST ASIAN CONFERENCE ON SOIL ENGINEERING, BANGKOK, JULY 1977

Mobile soil and rock flows arise in a variety of geological and geomorphological settings. Four case histories are presented by way of example. The first, from Hong Kong, resulted from the collapse of poorly compacted fill during infiltration of rainwater. The second, from Vancouver Island, is due to shallow instability and erosion in debris and is also associated with intense rain. The third, from Brazil, is caused by large scale instability in residual soil followed by channelling of the debris through a steep, narrow gorge. The fourth example refers to the general problem of rock debris avalanches where large volumes of dry rock can achieve remarkable mobility. A historical example from British Columbia is cited. Examples are given which illustrate that protective structures are often best designed utilizing basic principles of fluid mechanics rather than more traditional views of soil behaviour. The object of the paper is to draw attention to the class of problems associated with mobile soil and rock flows and the research needed to understand their mechanisms.(a) /TRRL/

  • Availability:
  • Corporate Authors:

    Southeast Asian Society of Soil Engineering

    P.O. Box 2754
    Bangkok,   Thailand 
  • Authors:
    • MORGENSTERN, N R
  • Publication Date: 1978

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 123-141
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00195507
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Sep 15 1979 12:00AM