SciELO - Scientific Electronic Library Online

 
vol.51 issue1Experimentally applied earthquakes and associated loading on a full-scale dry-stacked masonry structure author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

    Related links

    • On index processCited by Google
    • On index processSimilars in Google

    Bookmark

    Journal of the South African Institution of Civil Engineering

    Print version ISSN 1021-2019

    Abstract

    KIRSTEN, H A D et al. The issue of personal safety on dolomite: a probability-based evaluation with respect to single-storey residential houses. J. S. Afr. Inst. Civ. Eng. [online]. 2009, vol.51, n.1, pp. 26-36. ISSN 1021-2019.

    In refining the principles supporting the safe and judicious use of land, the Council for Geoscience (CGS) is researching the use of a risk-based evaluation of the influence of development density on personal safety. This paper considers single-storey dwelling houses and is the first in a series that will also consider multi-storey and mixed-use developments. In much the same way that rainfall statistics are used to calculate flood events in order to control development by restricting it to above a fixed return period flood line, is it proposed to expand and apply the frequencies of sinkhole occurrence in order to arrive at a more rigorous expression of acceptable development densities for the eight "Inherent Risk Classes". A number of probability concepts are used in determining the development density. Depending on the incidence of each probability, it has been possible to determine the risk associated with development on dolomite for a single-storey dwelling. Recommended population densities are proposed for each Inherent Risk Class, with the exceptions of Risk Classes 6, 7 and 8, where no residential development is catered for, in line with industry standards.

    Keywords : dolomite; sinkhole; coincidence; probability; residentia.

            · text in English     · pdf in English