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Statistical Analysis of Failures of Concrete Dams
To study failures of concrete dams, 100 dam failure cases throughout the world, excluding China, were collected from the literature, and compiled into a database. Among the cases with known capacities, most reservoirs have capacities less than 1 × 108 m3. The concrete dams constructed during the period of 1900‐1929 appear to have suffered the highest rate of failure. Concrete dams often fail all of a sudden. The failure of a gravity dam may take a short time on the order of 0.1‐0.5 h while the failure of an arch dam is usually assumed to range from instantaneous to 0.1 h. Hence, the prediction of breaching parameters appears to be straightforward since the breach is often multiple parts of the removed structure. The most common cause of failure is quality problems, which is followed by overtopping. These two causes led to about 80% of all failures.
Statistical Analysis of Failures of Concrete Dams
To study failures of concrete dams, 100 dam failure cases throughout the world, excluding China, were collected from the literature, and compiled into a database. Among the cases with known capacities, most reservoirs have capacities less than 1 × 108 m3. The concrete dams constructed during the period of 1900‐1929 appear to have suffered the highest rate of failure. Concrete dams often fail all of a sudden. The failure of a gravity dam may take a short time on the order of 0.1‐0.5 h while the failure of an arch dam is usually assumed to range from instantaneous to 0.1 h. Hence, the prediction of breaching parameters appears to be straightforward since the breach is often multiple parts of the removed structure. The most common cause of failure is quality problems, which is followed by overtopping. These two causes led to about 80% of all failures.
Statistical Analysis of Failures of Concrete Dams
Zhang, Limin (author) / Peng, Ming (author) / Chang, Dongsheng (author) / Xu, Yao (author)
2016-06-03
4 pages
Article/Chapter (Book)
Electronic Resource
English
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