Through model tests, it has been found that the effective mass coefficient for the soil is around 0.2 for artificial islands with height-to-diameter ratio being smaller than 1/3.
地震时人工岛内回填土只有一部分有效质量参与地震响应，通过模型试验，高径比小于1/3的人工岛回填土有效质量系数在0.2左右。
Through model tests, it has been found that the effective mass coefficient for the soil is around 0.2 for artificial islands with height-to-diameter ratio being smaller than 1/3.
地震时人工岛内回填土只有一部分有效质量参与地震响应，通过模型试验，高径比小于1/3的人工岛回填土有效质量系数在0.2左右。
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