PERISI: A COMPUTER PROGRAM FOR PRELIMINARY EVALUATION OFRAINFALL-INDUCED SLOPE INSTABILITY

Authors

  • Nurly Gofar Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia
  • Lee Min Lee Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Malaysia.

DOI:

https://doi.org/10.11113/mjce.v21.15789

Keywords:

Hydraulic conductivity, Volumetric water content, Pore water pressure, Slope stability evaluation

Abstract

This paper introduces a computer program PERISI stands for Preliminary Evaluation of Rainfall-Induced Slope Instability. The program was developed by utilizing the concept of extreme rainfall and unique relationships between rainfall characteristics, hydraulic conductivity, suction, and water content of unsaturated soil to evaluate the minimum suction distribution in soil. The outcome of the program is the factor of safety of soil slope in the critical condition as compared to normal condition

References

Au, S.W.C. (1998). Rain-Induced Slope Instability in Hong Kong. Engineering Geology. 51: 1–36.

Brisson, P., Garga, V.K. and Vanapalli, S.K. (2002) Determination of Unsaturated Flow Characteristics of Nickel Mine Tailings. 55th Canadian Geotechnical Conference, Niagara, Canada, October 2002.

Fredlund, D. G. and Xing, A. (1994). Equations for the Soil-Water Characteristic Curve. Canadian Geotechical Journal. 31: 521–532.

Fredlund, D. G., Morgenstern, N. R., and Widger, R. A. (1978). The Shear Strength of Unsaturated Soil. Canadian Geotechical Journal. 15: 313–321.

Fredlund, D.G. and Rahardjo, H. (1993). Soil Mechanics for Unsaturated Soils. New York: John Wiley & Sons, Inc.

Fredlund, D.G., Xing, A. and Huang, S. (1994). Predicting the Permeability Function for Unsaturated Soils Using the Soil-Water Character Curve. Canadian Geotechnical Journal. 31(3): 533-546

Gofar, N. and Lee, M.L. (2008). Extreme Rainfall Characteristics for Surface Slope Stability in the Malaysian Peninsular. Journal of Assessment and Management of Risk for Engineered

Systems and Geohazards (Georisk), Taylor and Francis. 2(2): 65-78.

Gofar, N. and Lee, M.L. (2008). Integration of Extreme Rainfall in the Evaluation of Slope Stability. Proceedings of the 12

th ISGE Annual Science Meeting, Bandung, Indonesia:p.V1- V6

Gofar, N., Lee, M.L. and Kassim A. (2009). Extreme Rainfall Analysis for Slope Stability Evaluation. in book: Prediction and Simulation Methods for Geohazard Mitigation (Oka, Murakami and Kimoto, eds) CRC Press

Lam, C.C. and Leung, Y.K. (1995) Extreme Rainfall Statistics and Design Rainstorm Profiles at Selected Locations in Hong Kong. Technical Note No. 86. Royal Observatory. Hong Kong.

Lee M.L. Gofar, N. and Raharjo, H. A Simple Model for Preliminary Evaluation of RainfallInduced Slope Instability. Engineering Geology Elsevier 108(3-4)272-282

Li, A.G., Tham, L.G., Yue, G.Q., Lee, C.F. and Law, K.T. (2005). Comparison of Field and Laboratory Soil-Water Characteristic Curves. Journal of Geotechnical and Geoenvironmental

Engineering, ASCE. 131(9): 1176-1180.

Rahardjo, H., Li X. W., Toll D. G. and Leong E. C. (2001). The Effect of Antecedent Rainfall on Slope Stability. Journal of Geotechnical and Geological Engineering. Netherlands. 19: 371-

Downloads

Published

2018-05-31

Issue

Section

Articles

How to Cite

PERISI: A COMPUTER PROGRAM FOR PRELIMINARY EVALUATION OFRAINFALL-INDUCED SLOPE INSTABILITY. (2018). Malaysian Journal of Civil Engineering, 21(2). https://doi.org/10.11113/mjce.v21.15789