【摘要】 本文叙述了东江拱坝现场基岩钻孔爆破模拟人工地震动，实测坝体、地基河谷的动力反应，研究了坝址河谷多点地震动输入的拱坝与地基动力相互作用及其对坝体动力反应的影响．通过实测资料分析，其结果初步验证了拱坝多点输入动力反应分析的数学模型基本合理．更多还原

【Abstract】 This paper describs an experimental study on dam-foundation interaction and its effect on ressponses of arch dam with multiple excitation technique which was performed on Dongjiang Dam under the China-U.S Protocol Scientific and Technical Cooperation in Earthquake Studies.In the test,the dam and reservoir were excited by detonating explosive charges in the foundation rock to simulate the ground shock in earthquake, Thus the dam-water-foundation system was excited by these blast shock waves travelling through the foundation rock.The theoretical calculated results basically agree with those measured in the field.The results show that the mathematical models of multiple excitation analysis of arch dams are reasonable.更多还原