Slope stability problems in a part of western Singapore

702001-101401-1197-B
Author : Pitts, J.
Publication : Bulletin of the Geological Society of Malaysia
Page : 819-826
Volume Number : 20
Year : 1987
DOI : https://doi.org/10.7186/bgsm20198637

Bulletin of the Geological Society of Malaysia, Volume 20, August 1986, pp. 819 – 826

Slope stability problems in a part of western Singapore

JOHN PITTS

School of Civil and Structural Engineering, Nanyang Technological Institute, Upper Jurong Road, Singapore 2263

 

Abstract: Slope stability problems in residual soils and weathered rocks are described. These are related to periods of high rainfall, though no precise relationship between slope instability and rainfall has been established. Saturation of the near surface zone during prolonged periods of rainfall is offered as the main trigger of slope failure, saturation of the toe area being considered especially significant. This is considered in the light of infiltration rates, throughflow, permeability and rainfall characteristics. Long-term destabilisation of the slopes following regrading, stress relief and shear creep is offered as a possible mechanism causing the slope instability.

https://doi.org/10.7186/bgsm20198637


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