Reliability Analysis of Free Jet Scour Below Dams
Current formulas for calculating scour depth below of a free over fall are mostly deterministic in nature and do not adequately consider the uncertainties of various scouring parameters. A reliability-based assessment of scour, taking into account uncertainties of parameters and coefficients involve...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2012-12-01
|
| Series: | Entropy |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1099-4300/14/12/2578 |
| _version_ | 1811262943926419456 |
|---|---|
| author | Chuanqi Li Wei Wang Shuai Wang |
| author_facet | Chuanqi Li Wei Wang Shuai Wang |
| author_sort | Chuanqi Li |
| collection | DOAJ |
| description | Current formulas for calculating scour depth below of a free over fall are mostly deterministic in nature and do not adequately consider the uncertainties of various scouring parameters. A reliability-based assessment of scour, taking into account uncertainties of parameters and coefficients involved, should be performed. This paper studies the reliability of a dam foundation under the threat of scour. A model for calculating the reliability of scour and estimating the probability of failure of the dam foundation subjected to scour is presented. The Maximum Entropy Method is applied to construct the probability density function (PDF) of the performance function subject to the moment constraints. Monte Carlo simulation (MCS) is applied for uncertainty analysis. An example is considered, and there liability of its scour is computed, the influence of various random variables on the probability failure is analyzed. |
| first_indexed | 2024-04-12T19:36:00Z |
| format | Article |
| id | doaj.art-02578d7410e04aae94735911a648b0aa |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-12T19:36:00Z |
| publishDate | 2012-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-02578d7410e04aae94735911a648b0aa2022-12-22T03:19:12ZengMDPI AGEntropy1099-43002012-12-0114122578258810.3390/e14122578Reliability Analysis of Free Jet Scour Below DamsChuanqi LiWei WangShuai WangCurrent formulas for calculating scour depth below of a free over fall are mostly deterministic in nature and do not adequately consider the uncertainties of various scouring parameters. A reliability-based assessment of scour, taking into account uncertainties of parameters and coefficients involved, should be performed. This paper studies the reliability of a dam foundation under the threat of scour. A model for calculating the reliability of scour and estimating the probability of failure of the dam foundation subjected to scour is presented. The Maximum Entropy Method is applied to construct the probability density function (PDF) of the performance function subject to the moment constraints. Monte Carlo simulation (MCS) is applied for uncertainty analysis. An example is considered, and there liability of its scour is computed, the influence of various random variables on the probability failure is analyzed.http://www.mdpi.com/1099-4300/14/12/2578free over fall jetscourreliability analysismaximum entropy methodMonte Carlo simulation |
| spellingShingle | Chuanqi Li Wei Wang Shuai Wang Reliability Analysis of Free Jet Scour Below Dams Entropy free over fall jet scour reliability analysis maximum entropy method Monte Carlo simulation |
| title | Reliability Analysis of Free Jet Scour Below Dams |
| title_full | Reliability Analysis of Free Jet Scour Below Dams |
| title_fullStr | Reliability Analysis of Free Jet Scour Below Dams |
| title_full_unstemmed | Reliability Analysis of Free Jet Scour Below Dams |
| title_short | Reliability Analysis of Free Jet Scour Below Dams |
| title_sort | reliability analysis of free jet scour below dams |
| topic | free over fall jet scour reliability analysis maximum entropy method Monte Carlo simulation |
| url | http://www.mdpi.com/1099-4300/14/12/2578 |
| work_keys_str_mv | AT chuanqili reliabilityanalysisoffreejetscourbelowdams AT weiwang reliabilityanalysisoffreejetscourbelowdams AT shuaiwang reliabilityanalysisoffreejetscourbelowdams |