【摘要】 流清河砌石双曲拱坝,利用脉动、小药量爆炸和土火箭反冲激振方法,进行坝体动力特性实测。实测资料表明,各种不同激振方法所得成果甚为一致,坝体基本频率为3.60HZ,其对应振型为正对称型,与国内外同类型砼拱坝原体实测资料也基本相近。更多还原

【Abstract】 Dynamic characteristics of Liu Qinghe river stone masonry double curvature dam were recorded as response to earthquake generated by btasting of small charges and reaction of rocket launching. The result has no difference under earthquake generated in different ways, with basic frequency of 3.6 Hz and normal-symmetry pattern, and agree with data observed at similar dams abroad.更多还原