›› 2010, Vol. 31 ›› Issue (11): 3542-3548.

• Geotechnical Engineering • Previous Articles     Next Articles

Effects of Wenchuan earthquake on Yele Dam

CAO Xue-xing1，HE Yun-long1，XIONG Kun1，LIU Bin2   

  1. 1.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University, Wuhan 430072, China; 2. National Research Institute for Rural Electrification, Ministry of Water Resources, Hangzhou 310012,China
  • Received:2009-08-03 Online:2010-11-10 Published:2010-11-24

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Abstract:

Yele Dam is a rockfill dam with an asphaltic concrete core wall. The maximum dam height is 124.5 m; and the geological conditions of the foundation are quite complex with a high degree of seismic intensity. The dam area was shocked strongly at an epicentral distance of about 258 km. There are 9 accelerographs and some other monitoring instruments on the dam. And they obtained comparatively complete records of the earthquake and other monitoring data during Wenchuan Earthquake. The effects of Wenchuan Earthquake on Yele Dam were studied based on the earthquake records and the analysis of the deformation, stress and strain, as well as seepage and osmotic pressure. Based on these analysis there had no significant adverse effects on the dam, but it still had some disadvantage effects on the partial structure of the dam. It was concluded that there was no exceptional appearance and the dam remained in normal working state after the Ms8.0 earthquake.

Key words: Wenchuan earthquake, rockfill dam, asphaltic concrete core, strong earthquake records, monitoring data

CLC Number: 

  • TU 443
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