Abstract：Structural collapse of super large cooling towers located in inland nuclear power plants induced ground vibration and fragments impact, which can detrimentally affect the safe operation of nuclear-related facilities. To prevent and mitigate these secondary hazards, the collapse induced ground vibration was predicted and the influencing factors were in dept studied. First, a verified “cooling tower-soil” numerical model was built to predict the ground vibration. Then the critical factors which influenced the ground vibration were numerically investigated, including tower types, collapse modes and soil properties. Study results shown that the soil property is the most critical factor among the three that influences the collapse-induced vibration. The obtained understanding was finally applied for nuclear power plant planning. Recommendations were proposed included the method to determine the spacing between cooling tower and nuclear island, control of collapse modes of cooling tower, and measures for soil vibration attenuation.
刘敏1，陈兵1，林峰2，闫辉峰2，顾祥林2. 大型冷却塔倒塌致地面振动影响因素[J]. 振动与冲击, 2016, 35(10): 126-132.
LIU Min1，CHEN Bing1，LIN Feng2, YAN Hui-feng2, GU Xiang-lin2. Factors affecting the ground vibration caused by collapse of a super large cooling tower. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(10): 126-132.
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