SciELO - Scientific Electronic Library Online

 
vol.56 número3Dynamic behaviour of underspanned suspension road bridges under traffic loads índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • En proceso de indezaciónSimilares en Google

Compartir


Journal of the South African Institution of Civil Engineering

versión On-line ISSN 2309-8775

Resumen

BRINK, G  y  HEYMANN, G. Soil collapse from an effective stress perspective. J. S. Afr. Inst. Civ. Eng. [online]. 2014, vol.56, n.3, pp. 30-33. ISSN 2309-8775.

The behaviour of collapsible soil is often quantified by conducting a Collapse Potential Test or double oedometer test. However, these tests interpret the soil behaviour in terms of total stress, while it is well known that the behaviour of soil is governed by its effective stress. This article shows the results of a test conducted on undisturbed residual granite to study the collapse of the soil in terms of effective stress. The test was conducted in a modified oedometer which allowed the incremental addition of water to the sample during the test. The matric suction was quantified as a function of the moisture content of the soil during the test. The results indicate that the reduction in effective stress plays an important role during soil collapse. In addition it was found that much of the collapse settlement may be due to creep which occurs after the reduction in effective stress.

Palabras clave : creep; Collapse Potential Test; double oedometer test; effective stress; matric suction; soil collapse; unsaturated soil; vertical strain.

        · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License