| 黄土斜坡地震动时程分析 |
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| 引用本文： | 李忠生.黄土斜坡地震动时程分析[J].西北地震学报,2004,26(2):126-130. |
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| 作者姓名： | 李忠生 |
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| 作者单位： | 长安大学地测学院,陕西,西安,710054 |
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| 基金项目： | 中奥合作项目(9802) |
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| 摘 要： | 应用地震危险性分析理论和地震动人工合成技术，给出Newmark法中所需的地震动时程，解决了斜坡稳定性分析Newmark法中难以选取合适地震动时程的难题。通过对黄土斜坡实例计算，给出了坡体中地震动峰值加速度与深度的关系；在计算坡体位移时，提出了等效峰值加速度的概念；对比了使用地面地震动时程和使用坡体内等效地震动时程的计算结果。
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| 关 键 词： | 地震 时程 斜坡 安全系数 Newmark法 |
| 文章编号： | 1000-0844(2004)02-0126-05 |
| 收稿时间： | 2003/7/30 0:00:00 |
| 修稿时间： | 2003年7月30日 |
GROUND SHAKING ACCELERATION HISTORY ANALYSIS FOR LOESS SLOPE |
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| LI Zhong-sheng.GROUND SHAKING ACCELERATION HISTORY ANALYSIS FOR LOESS SLOPE[J].Northwestern Seismological Journal,2004,26(2):126-130. |
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| Authors: | LI Zhong-sheng |
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| Institution: | Geological Engineering & Mapping Engineering Faculty, Chang''an University, Xi''an 710054, China |
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| Abstract: | By using seismic risk analysis theory and artificial ground shaking acceleration techniques, the ground shaking acceleration history, used in Newmark method for slope stability evaluation, is created. Via a loess slope case computation, the relation between the peak acceleration in landslide and depth is deduced. In addition, a terminology, equivalent peak acceleration is put forward, and computing results by using equivalent shaking acceleration in the slope and shaking acceleration on the slope surface in Newmark method are compared. |
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| Keywords: | Earthquake Acceleration history Slope Factor of safety Newmark method |
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