Slope stability analysis of a weathered granitic hillslope as effects of soil thickness

Muhammad Mukhlisin, Mohd. Raihan Taha

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Modeling rainwater infiltration in slopes is vital to the analysis of slope failure induced by heavy rainfall. In weathered granitic soil formation, typical slope failures that occurred in Japan are on ranging between 50 and 300 cm depths. In this study, a numerical model was developed to estimate the extent of rainwater infiltration into an unsaturated slope, the formation of a saturated zone, and the change in slope stability. This model is then used to analyze the effects of soil thickness on the occurrence of slope failure. Results showed that the thickness of soil is a significant parameter in slope stability analysis. A shallow soil depth resulted in greater discharge volume and a lower peak pore water pressure during the major rainfall event, and consequently the slope failure tends not to occur. However a deeper soil depth increased the weight of solids and the soil moisture conditions in the slope and the pore water pressure which the increased likelihood of slope failure.

Original languageEnglish
Pages (from-to)36-44
Number of pages9
JournalEuropean Journal of Scientific Research
Volume30
Issue number1
Publication statusPublished - 2009

Fingerprint

Slope stability
slope failure
slope stability
hillslope
stability analysis
soil depth
Soil
Stability Analysis
Slope
rain
Soils
infiltration (hydrology)
rainwater
Infiltration
soil
Rain
porewater
infiltration
soil formation
rainfall

Keywords

  • Numerical analysis
  • Rain water infiltration
  • Soil thickness and slope stability
  • Weathered granitic

ASJC Scopus subject areas

  • General

Cite this

Slope stability analysis of a weathered granitic hillslope as effects of soil thickness. / Mukhlisin, Muhammad; Taha, Mohd. Raihan.

In: European Journal of Scientific Research, Vol. 30, No. 1, 2009, p. 36-44.

Research output: Contribution to journalArticle

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