| 用地脉动研究银川沉积地层的地震波放大特性 |
| |
| 引用本文： | 何开明,孟广魁,班铁,崔黎明. 用地脉动研究银川沉积地层的地震波放大特性[J]. 地震工程学报, 1999, 21(4): 383-388 |
| |
| 作者姓名： | 何开明 孟广魁 班铁 崔黎明 |
| |
| 作者单位： | 1. 浙江大学土木系,浙江,杭州,310027
2. 宁夏回族自治区地震局,宁夏,银川,750001 |
| |
| 摘 要： | 根据银川盆地不同厚度覆盖层上的三分向( 东西、南北和垂直) 地脉动测量数据,绘制出水平向振幅谱与垂直向振幅谱的比值曲线.结果表明,谱比曲线上最大峰值处的频率大小显著地反映了覆盖层的薄厚.通过银川市部分房屋自振频率的对比分析认为,该部分房屋在未来地震中将遭受严重破坏.
|
| 关 键 词： | 地脉动 振幅谱比 自振频率 地震波放大特性 |
| 收稿时间： | 1998-10-28 |
STUDY ON SEISMIC AMPLIFICATION OF SEDIMENT LAYERS IN YINCHUAN BY USING MICROTREMOR |
| |
| HE Kai-ming,MENG Guang-kui,BAN Tie and CUI Li-ming. STUDY ON SEISMIC AMPLIFICATION OF SEDIMENT LAYERS IN YINCHUAN BY USING MICROTREMOR[J]. China Earthguake Engineering Journal, 1999, 21(4): 383-388 |
| |
| Authors: | HE Kai-ming MENG Guang-kui BAN Tie CUI Li-ming |
| |
| Affiliation: | Dept. of Civil Engineering, Zhejiang University, Hangzhou 310027, China,Seismological Bureau of Ningxia Hui Autonomous Region, Yinchuan 750001, China,Seismological Bureau of Ningxia Hui Autonomous Region, Yinchuan 750001, China and Seismological Bureau of Ningxia Hui Autonomous Region, Yinchuan 750001, China |
| |
| Abstract: | Based on tri component measurement of microtremor on different thickness sediment layers in Yinchuan basin,the curves of ratio of horizontal spectrum to vertical spectrum were drawn.These curves show that the frequency value corresponding to maximum peak obviously reflect the sediment layers' thickness. Comparing the frequency value with predominant frequency of some buildings in Yinchuan,it can be concluded that these buildings would be seriously damaged by future earthquakes. |
| |
| Keywords: | Microtremor Amplitude spectrum ratio Predominant frequency Seismic amplification |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地震工程学报》浏览原始摘要信息 |
|
点击此处可从《地震工程学报》下载全文 |
|
