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在地震区内修建巨型水电站时,必須对水电站的主要結构物——拦河煩进行抗震問題的研究。 通过模型試驗,计算了重力坝茌地震作有下的振动、应力及位移。假設地震时,地基是作为整体来运动的,并且只考虑了地震时地面的水平运动、略去了地面的垂直运动的影响。选用美国1940年5月18日在El Centro(加利福尼亚州)的地震加速度記录(最大加速度为0.33g),和一系列的地震振谱作为地震的原始资料。
When constructing a huge hydropower station in the earthquake area, we must study the main structural structure of the hydropower station, namely the river barrier. Through model tests, the vibrations, stresses, and displacements of gravity dams were calculated. Assuming the earthquake, the foundation is moving as a whole, and only considers the horizontal movement of the ground during the earthquake and the effect of the vertical movement of the ground. The earthquake acceleration record (maximum acceleration of 0.33g) of the United States in El Centro (California) on May 18, 1940, was used, and a series of seismic spectrums were used as the seismic source data.