Probability and Risk of Slope Failure
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VIEW THE REPLYPublication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 134, Issue 12
Abstract
This paper aims to demystify the use of risk assessment as a decision management tool and present a methodology that places quantitative risk assessment within reach of every geotechnical engineer, even for routine engineering assignments. In particular, we propose using quantification of expert judgment (i.e., subjective probabilities) as a practical alternative for determining probability of slope failure. The writers present a semiempirical relationship between factor of safety and annual probability of failure that permits estimation of slope failure probabilities with relatively modest effort. The case study for a tailings dam shows that risk assessment based on quantification of expert judgment provides a framework to arrive at rational management and engineering decisions related to dam safety and other geotechnical problems. Using the semiempirical relationship presented here, practicing engineers can use this helpful tool by applying their current skills.
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Acknowledgments
The many projects summarized in Fig. 1 benefitted from the engineering skills of many of the writers’ colleagues, including Gregory Baecher, Ralph Grismala, Lilly Lee, Thom Neff, Anastasia Papadopoulos, José Ramos, Mario Troconis, and Robert V. Whitman. Lisa Bendixen and John Christian helped with insightful discussions related to probability and risk. Several of the figures in this paper were drawn by Mark Bethoney.
References
Alonzo, E. (1976). “Risk analysis of slopes and its application to slopes in Canadian sensitive clays.” Geotechnique, 26(3), 453–472.
Baecher, G. B., and Christian, J. T. (2003). Reliability and statistics in geotechnical engineering, Wiley, Chichester, U.K., 319–322.
Baecher, G. B., Paté, M.-E., and de Neufville, R. (1980). “Dam failure in benefit cost analysis.” J. Geotech. Engrg. Div., 106(1), 101–105.
Benjamin, J. R., and Cornell, C. A. (1970). Probability, statistics, and decision for civil engineers, McGraw-Hill, New York.
Christian, J. T., Ladd, C. C., and Baecher, G. B. (1992). “Reliability and probability in stability analysis.” Proc., Stability and Perf. of Slopes and Embankments—II, Vol. 2, ASCE, New York, 1071–1111.
Christian, J. T., Ladd, C. C., and Baecher, G. B. (1994). “Reliability applied to slope stability analysis.” J. Geotech. Engrg., 120(12), 2180–2207.
Christian, J. T., and Urzua, A. (1998) “Probabilistic evaluation of earthquake-induced slope failure.” J. Geotech. Geoenviron. Eng., 124(11), 1140–1143.
Cornforth, D. (2005). Landslides in practice: Investigation, analysis, and remedial/preventative options in soils, Wiley, Hoboken, N.J.
D’Andrea, R. A., and Sangrey, D. A. (1982). “Safety factors for probabilistic slope design.” J. Geotech. Engrg. Div., 108, 1101–1118.
Duncan, J. M., and Wright, S. G. (2005). Soil strength and slope stability, Wiley, Hoboken, N.J.
Gilbert, R. B., and McGrath, T. C. (1996). “Seven guidelines for managing uncertainty in geoenvironmental design.” Uncertainty in the geologic environment: From theory to practice, Proc., of Uncertainty ’96, ASCE, Madison, Wis., 774–796.
Kulhawy, F. H., and Phoon, K. K. (1996). “Engineering judgment in the evolution from deterministic to reliability-based foundation design.” Uncertainty in the Geologic Environment: From Theory to Practice, Proc., of Uncertainty’96, ASCE, Madison, Wis., 774–796.
Lambe, T. W. (1985). “Amuay landslides.” Proc., 11th Int. Conf. on Soil Mechanics and Foundation Engineering, Golden Jubilee Volume, San Francisco, Balkema, Boston, 137–158.
Lambe, T. W., Marr, W. A., and Silva, F. (1981). “Safety of a constructed facility: Geotechnical aspects.” J. Geotech. Engrg. Div., 107(3), 339–352.
Lambe, T. W., and Silva, F. (1992). “Stability analysis of an earth slope.” Proc., Stability and Performance of Slopes and Embankments-II, ASCE, New York, 27–69.
Lambe, T. W., and Silva, F. (2003). “Evaluating the stability of an earth structure.” Proc., 12th Pan-American Conf. on Soil Mechanics and Foundation Engineering, Cambridge, Mass., Verlag Gluckauf GmbH, Essen, 2785–2790.
Lambe, T. W., Silva, F., and Lambe, P. C. (1987). “Expressing the level of stability of a slope.” The art and science of geotechnical engineering at the dawn of the twenty-first century: A volume honoring Ralph B. Peck, E. J. Cording, et al., eds., Wiley, New York, 558–588.
Meyerhof, G. G. (1970). “Safety factors in soil mechanics.” Canadian Geotechnical Journal, 7(4), 349–355.
Morgan, G. C. (1997). “A regulatory perspective on slope hazards and associated risks to life.” Landslide risk assessment, Proc., Int. Workshop on Landslide Risk Assessment, Honolulu, D. M. Cruden and R. Fell, eds., Balkema, Rotterdam, 285—295.
Morgenstern, N. R. (1995). “Managing risk in geotechnical engineering.” Proc., 10th Panamerican Conf. on Soil Mechanics and Foundation Engineering, Vol. 4, Guadalajara, Mexico, Sociedad Mexicana de Mecanica de Suelos, Mexico, 102–126.
Roberds, W. J. (1990). “Methods for developing defensible subjective probability assessments.” Proc., Transportation Research Board, No. 1288, National Research Council, Washington, D.C., 183–190.
Santamarina, J. C. (1987). “Fuzzy sets and knowledge systems in geotechnical engineering,” Dr. Philosophy thesis, Purdue Univ., West Lafayette, Ind.
Stewart, R. A. (2000). “Dam risk management.” Proc., Int. Conf. on Geotechnical and Geological Engineering (GeoEng2000), Melbourne, Australia, Technomic Pub., Lancaster, Pa., 721–748.
Tavares, L. V., and Serafim, J. L. (1983). “Probabilistic study on failure of large dams.” J. Geotech. Engrg., 109(11), 1483–1486.
Terzaghi, K. (1929). “Effect of minor geologic details on the safety of dams.” Technical Publication 215, American Institute of Mining and Metallurgical Engineers, Geology and Engineering for Dams and Reservoirs, New York, 31–46
T. W. Lambe & Associates. (1982). Earthquake risk to patio 4 and site 400, Longboat Key, Fla.
T. W. Lambe & Associates. (1989). Earthquake risk analysis for KSS tank area, Longboat Key, Fla.
Vick, S. G. (1994). “Geotechnical risk and reliability—From theory to practice in dam safety.” Proc., Earth, Engineers, and Education—A Symp. in Honor of Robert V. Whitman, Cambridge, Mass., MIT, Cambridge, 45–58.
Whitman, R. V. (1984). “Evaluating calculated risk in geotechnical engineering.” J. Geotech. Engrg., 1102, 145–188.
Wu, T. H., and Kraft, L. M. (1967). “The probability of foundation safety.” J. Soil Mech. and Found. Div., 93(5), 213–237.
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© 2008 ASCE.
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Received: Jul 26, 2005
Accepted: Jan 2, 2008
Published online: Dec 1, 2008
Published in print: Dec 2008
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