A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dam Damage: Evaluating and Learning from the Wenchuan Earthquake's Impact to China's Dams
The May 12, 2008 M7.9 Wenchuan earthquake was one of the most costly and damaging earthquakes in recent memory. The impact of this horrific event will be felt in the Sichuan region for generations and will require hundreds of billions of dollars for recovery, rebuilding, and restoration. Vital to any community is a reliable and safe water supply and the Wenchuan earthquake damaged over 2,600 dams and reservoirs of all sizes and types in 8 provinces in China. Sichuan province experienced the majority of the damage to their dams and reservoirs with 1,996 dams experiencing some form of damage, which represents 30% of the dams in Sichuan. Of the 1,996 dams in Sichuan province that were damaged 69 were classified as Dangerous Situations of Dam-Break, 310 were classified as High Dangerous Situations, and 1,617 were classified as Secondary High Dangerous Situations. Damage to dams included cracks in 1,425 dams, collapse and settlement in 687 dams, slides in 354 dams, leaks and seepage in 428 dams, mechanical hoisting equipment damage in 161 dams, and outlet works, spillway, and office building damage to 422 dams. In the modern area of dam design and construction this extent of damage to a countries water supply and hydroelectric system has never before been realized or documented. This affords engineers a unique opportunity to evaluate the performance of these dams after they were subjected to significant earthquake loading and learn from our findings. This paper looks at damages to dams in Sichuan region, including Zipingpu Dam near Duijanyan, Shapai Dam, and other dams damaged by the Wenchuan earthquake and offers lessons learned for the design, construction and operation and maintenance of these structures. This paper will also compare Chinese dam design and safety practices with US dam design and safety practices for earthen, concrete, and rockfill dams.
Dam Damage: Evaluating and Learning from the Wenchuan Earthquake's Impact to China's Dams
The May 12, 2008 M7.9 Wenchuan earthquake was one of the most costly and damaging earthquakes in recent memory. The impact of this horrific event will be felt in the Sichuan region for generations and will require hundreds of billions of dollars for recovery, rebuilding, and restoration. Vital to any community is a reliable and safe water supply and the Wenchuan earthquake damaged over 2,600 dams and reservoirs of all sizes and types in 8 provinces in China. Sichuan province experienced the majority of the damage to their dams and reservoirs with 1,996 dams experiencing some form of damage, which represents 30% of the dams in Sichuan. Of the 1,996 dams in Sichuan province that were damaged 69 were classified as Dangerous Situations of Dam-Break, 310 were classified as High Dangerous Situations, and 1,617 were classified as Secondary High Dangerous Situations. Damage to dams included cracks in 1,425 dams, collapse and settlement in 687 dams, slides in 354 dams, leaks and seepage in 428 dams, mechanical hoisting equipment damage in 161 dams, and outlet works, spillway, and office building damage to 422 dams. In the modern area of dam design and construction this extent of damage to a countries water supply and hydroelectric system has never before been realized or documented. This affords engineers a unique opportunity to evaluate the performance of these dams after they were subjected to significant earthquake loading and learn from our findings. This paper looks at damages to dams in Sichuan region, including Zipingpu Dam near Duijanyan, Shapai Dam, and other dams damaged by the Wenchuan earthquake and offers lessons learned for the design, construction and operation and maintenance of these structures. This paper will also compare Chinese dam design and safety practices with US dam design and safety practices for earthen, concrete, and rockfill dams.
Dam Damage: Evaluating and Learning from the Wenchuan Earthquake's Impact to China's Dams
Shannon, Del A. (author)
Technical Council on Lifeline Earthquake Engineering Conference (TCLEE) 2009 ; 2009 ; Oakland, California, United States
TCLEE 2009 ; 1-12
2009-06-24
Conference paper
Electronic Resource
English
Dam Damage: Evaluating and Learning from the Wenchuan Earthquake's Impact to China's Dams
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