Fig. 1. Graph for plotting annual probability of failure vs. Current condition score (Heo and Chung, 2016)
Fig. 2. Correlation Analysis for Verifying Consistency of Failure Probability Estimation Due to Internal Erosion
Table 1. Overall Failure Statistics for Large Embankment Dams (Modified based on Foster et al., 2000)
Table 2. Questionnaire form
Table 3. Results before removal of outliers
Table 4. Results after removal of outliers
Table 5. Results of possible score ranges
Table 6. Case Study results for Consistency Verification
Table 7. Comparison of the Safety rating of the downstream slope and Current dam condition score
참고문헌
- Brown, A.J. and Gosden, J.D. (2004), "Interim Guide to Quantitative Risk Assessment for UK Reservoirs", pp35-43 and Appendix C, pp.124-126.
- Bureau of Reclamation and Corps of Engineers (2012), "Chapter 26: Internal Erosion", Best Practices in Dam and Levee Safety Risk Analysis. Draft, U.S. Bureau of Reclamation and Corps of Engineers, Denver, CO.
- Department for Environment Food and Rural Affairs (2013), "Guide to risk assessment for reservoir safety management", Volume 2.
- Foster, M., Fell, R., and Spannagle, M. (2000), "A Method for Assessing the Relative Likelihood of Failure of Embankment Dams by Piping", Canadian Geotechnical Journal, Vol.37, No.5, pp.1031-1033.
- Fell, R., Foster, M., Davidson, R., Cyganiewicz, J., Sills, G., and Vroman, N. (2008), "A Unified Method for Estimating Probabilities of Failure of Embankment Dams by Internal Erosion and Piping", URS Australia Pty Ltd. Sydney, Australia. [Prepared for the US Bureau of Reclamation]
- Heo, G. and Chung, C.K. (2016), "Quantification on the probability of dam failure due to internal erosion using event tree analysis", Proc., 84 th ICOLD Annual Meeting 2016, Johannesburg, S. Africa.
- Scott, G.A. (2011), "The Practical Application of Risk Assessment to Dam Safety", Georisk 2011, pp.129-168.