Risk Analysis for Dam Design in Karst

Vick, Steven G.; Bromwell, Leslie G.

doi:10.1061/(asce)0733-9410(1989)115:6(819)

Cited by 9 publications

(4 citation statements)

References 5 publications

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“…In the late 1980s, some attempts have been made toward the risk assessments in different dams, e.g. Tongue River dam risk assessment (PRC Engineering 1987) and design of a dam on karst in Florida (Vick, Bromwell 1989). As previously mentioned, by some other researchers (Salmon, Hartford 1995;Hartford, Baecher 2005), disadvantages of such procedures may come from the fact that estimation of the probability of occurrence is performed based on expert judgments which may be associated with many errors and bias.…”

Section: Risk Analysis Concepts In Dam Designmentioning

confidence: 99%

Application of Risk Analysis Within Value Management: A Case Study in Dam Engineering

Rohaninejad

Bagherpour

2013

Journal of Civil Engineering and Management

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Nowadays, considering uncertainties and complexities in dam engineering problems, implementation of risk analysis is essential more than before. On the other hand, reliability analysis is an efficient approach which can be applied in order to quantify the identified risks. By applying such analyses, a designer can therefore define and develop different scenarios in order to evaluate the effect of identified risks. The risk management process can be further implemented within a value management cycle where the potential alternatives should be evaluated and finally the best-known alternative must be selected. In order to measure the efficiency of risk analysis approach in a dam, a case study is studied and then implemented. The result of the reliability analysis for the piping phase shows a conservative approach with a low risk during the dam design process. Based on the value analysis, two different scenarios are then developed. In the first scenario, the piping phase is considered as a high risk issue; and in the second scenario, the risk is considered as its minimum acceptable threshold. Based on the obtained results, this can be summarized: utilizing risk analysis for improvement of the decision-making process can be efficiently defined and developed as a fundamental strategy in water resource projects.

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Section: Risk Analysis Concepts In Dam Designmentioning

confidence: 99%

Application of Risk Analysis Within Value Management: A Case Study in Dam Engineering

Rohaninejad

Bagherpour

2013

Journal of Civil Engineering and Management

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“…The past century has witnessed tremendous progress on dam safety against hazards of earthquakes [e.g., Marcuson et al , 1996], piping/seepage [e.g., Casagrande , 1961; Sherard , 1987], and structural instability [e.g., Terzaghi and LaCroix , 1964; Vick and Bromwell , 1989]. Similarly, much is now known about the management of postdam effects on aquatic ecology [e.g., Ligon et al , 1995; Richter et al , 2002], riparian vegetation [e.g., Merritt and Cooper , 2000], and geomorphology [e.g., Graf , 2006].…”

Section: Issues Of Dam Safety Against Human Alteration To Extreme Prementioning

confidence: 99%

Dam safety effects due to human alteration of extreme precipitation

Hossain

Jeyachandran

Pielke

2010

Water Resources Research

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[1] Very little is known about the vulnerability of dams and reservoirs to man-made alteration of extreme precipitation and floods as we step into the 21st century. This is because conventional dam and reservoir design over the last century has been "one-way" with no acknowledgment of the possible feedback mechanisms affecting the regional water cycle. Although the notion that an impoundment could be built to increase rainfall was suggested more than 60 years ago, dam design protocol in civil engineering continues to assume as "static" the statistical parameters of a low exceedance probability precipitation event during the lifespan of the dam. It is time for us to change our perceptions and embrace a hydrometeorological approach to dam design and operations.

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“…For example, the construction of the oldest dam in the Tennessee River Valley, called the Wilson Dam in Alabama, began in 1918 (Gebregiorgis and Hossain 2012). With a long heritage built on knowledge gained from previous failures and success stories, the civil engineering profession has made tremendous progress in dam safety against hazards of earthquakes (e.g., Marcuson et al 1996), piping/seepage (e.g., Casagrande 1961;Sherard 1987), structural instability (e.g., Terzaghi and LaCroix 1964;Vick and Bromwell 1989), and optimization of dam operations to serve multiple, but competing, applications (Dai and Labadie 2001;Datta and Burges 1984). Similarly, much is now known about the management of postdam effects on aquatic ecology (e.g., Ligon et al 1995;Richter et al 1996), riparian vegetation (e.g., Merritt and Cooper 2000), geomorphology (e.g., Graf 2006), and dam removal as a result of sedimentation (Morris and Fan 1998;Graf et al 2010).…”

Section: Introductionmentioning

confidence: 99%