| 徐州市埋藏基岩斜坡对地震动的影响 |
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| 引用本文： | 郝宪生,彭一民,王志良.徐州市埋藏基岩斜坡对地震动的影响[J].地震地质,1985,7(3):63. |
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| 作者姓名： | 郝宪生 彭一民 王志良 |
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| 作者单位： | 冶金工业部建筑研究总院
(郝宪生)，武汉地质学院北京研究生部
(彭一民)，冶金工业部建筑研究总院(王志良) |
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| 摘 要： | 本文在分析了徐州地区地震地质背景的基础上,用经作者扩展的SAP 5程序,重点分析了地震小区划中提出的埋藏基岩斜坡地形对地震地面运动的影响问题。初步认识到:这种复杂地形可产生不可忽视的竖向运动;水平向运动分布依其与基岩山丘的距离而不同;地震反应谱形状呈有规律的变化;输入多方向震波的影响比输入单方向震波时的影响要大
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| 关 键 词： | 埋藏基岩 徐州市 地震动 老粘土 水平向 一维分析 砂土层 地震小区划 地震地质背景 反应谱 |
EFFECT OF THE UNDERLYING BEDROCK SLOPE ON SEISMIC GROUND MOTION IN THE XUZHOU AREA |
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| Abstract: | The effect of underlying bedrock slope on the seismic ground motion is indicated by the seismic microregionalization for the study area.Two-dimentional inversion has been used in the seismic model and the author has worked out an extending program SAP5.The main results are as follows:vertical ground motion is significant;distributions of horizontal motion vary with the distance of the bedrock from the center of the basin;the spectra show a regular variation;input of multi-directional seimic waves shows larger effect than does input of mono-directional seismic waves on the ground motion.As indicated by data the effect of underlying bedrock slope on the ground motion is significant compared with the site condition |
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