Dam Safety Inspection Scheduling
Publication: Journal of Hydraulic Engineering
Volume 117, Issue 2
Abstract
Safety inspection of dams can be scheduled on a probabilistic basis considering detectability and repair probability. In this paper, a method of inspection scheduling for a dam is suggested by using an availability model. Unavailability is defined as the state in which a dam is operating under unsatisfactory conditions with deficiencies. The deficiencies may or may not be detected in an inspection, and a detected deficiency may or may not be repaired in due time. The paper proposes to relate the expected availability of a dam to the frequency of dam inspection, the detectability of the inspection routine, the likelihood of owners' compliance to repair orders, and the construction quality of the given dam. The deteriorating characteristics of a dam with time could also affect its availability. The case of inspection scheduling for a nonaging dam is first developed, followed by the case of an aging dam. Examples are given to demonstrate the proposed procedure.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Ang, A. H.‐S., and Tang, W. H. (1984). Probability concepts in engineering planning and design, Vol. II: Decision, risk and reliability. John Wiley and Sons, Inc., New York, N.Y., 171–176.
2.
Cheng, S.‐T. (1982). “Overtopping risk evaluation for an existing dam,” thesis presented to the University of Illinois at Urbana‐Champaign, at Urbana, Ill., in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
3.
Cheng, S.‐T. (1989). “Statistics on dam failure.” Seminar 3 on assessment of risks and uncertainties in the design of hydraulic structures, 24th congress of the Int. Association for Hydr. Res., Int. Association of Hydr. Res., Delft, the Netherlands.
4.
Kapur, K. C., and Lamberson, L. R. (1977). Reliability in engineering design. John Wiley and Sons, Inc., New York, N.Y.
5.
Lessons from dam incidents. (1973). Int. Commission on Large Dams (ICOLD), Paris, France.
6.
Lessons from dam incidents, USA. (1988). 2nd Ed., U.S. Committee on Large Dams (USCOLD), ASCE, New York, N.Y.
7.
Vanmarcke, E. H., and Bohnenblust, H. (1981). “Methodology for integrated risk assessment for dams.” Proc., Symp. on Probabilistic Methods in Struct. Engrg., ASCE, 121–138.
8.
Vogel, A. (1984). “Failures of masonry and concrete dams in Europe.” Safety of dams, J. L. Serafim, ed., A. A. Balkema Publishers, Rotterdam, the Netherlands, 45–54.
9.
VonThun, J. L. (1984). “Applications of decision analysis techniques in dam safety evaluation and modification.” Safety of dams, J. L. Serafim, ed., A. A. Balkema Publishers, Rotterdam, the Netherlands, 265–271.
10.
Lessons from dam incidents, USA. (1975). 1st Ed., U.S. Committee on Large Dams (USCOLD), ASCE, New York, N.Y.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 117 • Issue 2 • February 1991
Pages: 214 - 229
Copyright
Copyright © 1991 ASCE.
History
Published online: Feb 1, 1991
Published in print: Feb 1991
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.