糯扎渡水电站高心墙堆石坝抗震研究

Study on seismic resistance of the core rock-fill high dam of nuozhadu power station

糯扎渡水电站心墙堆石坝最大坝高261．5m，为在建的强震区超高土石坝，抗震设防烈度为9度，100年超越概率1％的基岩缝制加速度达0．436g。本文系统介绍了糯扎渡大坝的防震抗震研究成果及采取的抗震措施，可供其它类似工程参考。

Core rock-fill dams of Nuozhadu power station have a maximum height of 261.5m, being an over-high core rock-fill dam under construction in high seismic area. It has a seismic fortification intensity of 9 degree; bedrock peak acceleration is up to 0.436g when probability of exceedance in 100 years is 1%. This paper gives a systemic introduction on outcomes of study on Nuozhadu power station＇s earthquake-proofing and seismic resistance as well as the measures taken to resist earthquake, providing experiences for similar project.