世界首次近距离检验高面板堆石坝的抗震安全性——兼论面板坝的抗震性能

The first earthquake-resistance capacity test of high CFRD in short distance under '5·12' Wenchuan earthquake——Concurrently on CFRD earthquake-resistance capacity

紫坪铺高面板坝经受了"5·12"汶川8级地震的检验,结合受震后的某些原型观资料分析,从稳定、变形、渗流3方面而言,大坝都是安全的。这是世界上第1座高面板坝近距离经受了地震烈度约10度的强震考验,为以后在地震影响区水利、水电枢纽工程的勘测设计选址和坝型选择提供了宝贵的经验。还结合面板坝的某些抗震稳定分析及其他面板坝受震的情况,论证了面板坝优越的抗震性能。

Zipingpu high concrete faced rockfill dam underwent the test of '5.12'Wenchuan earthquake of magnitude 8.According to original observation data after the earthquake and analysis,the dam is safe in the aspects of stability,deformation and seepage.This is the first test of strong earthquake for high concrete faced rockfill dam in short distance.The analysis of the dam state under the impact of the strong earthquake will provide valuable experience for the design and dam site selection of hydropower project in earthquake-influenced area.In the combination of earthquake-resistance analysis and influenced condition of other concrete faced rockfill dams,this paper demonstrates the earthquake-resistance superiority of concrete faced rockfill dam.