• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Pure and Applied Geophysics >Determination of S-wave Site Response in Anchorage, Alaska in the 1–9 Hz Frequency Band
【24h】

Determination of S-wave Site Response in Anchorage, Alaska in the 1–9 Hz Frequency Band

机译：确定1–9 Hz频带中阿拉斯加安克雷奇的S波位置响应

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Site response was estimated at 19 sites in the Anchorage basin in south-central Alaska, using 15 local earthquakes recorded with good signal-to-noise ratio by a temporary weak motion network. The receiver-function-type horizontal-to-vertical spectral ratios (HVSR) were computed at 1–9 Hz frequency band and the resulting HVSR contour maps at 1, 5 and 9 Hz are presented here. The spatial site response distribution shows considerable variation from the foothills of the Chugach Mountains in the east to the western part of Anchorage. The site response increases by a factor of 3 and 3.5 at 1 and 5 Hz, respectively, from the area of older glacial deposits in the eastern part of the city to the area occupied by the Bootlegger Cove formation, particularly in the section adjoining Knik Arm. At 9 Hz, the variation of HVSR from the east to the west is smaller, approximately by a factor of 2. Moreover, the trend of the HVSR variation at 1 and 5 Hz shows good correlation with that of the soil class obtained from surface measurements of S-wave velocity in the 0–30 m depth range and available results on ground failure susceptibility of Anchorage.
机译：在阿拉斯加中南部安克雷奇盆地的19个地点，利用临时弱运动网络记录的15次地震以良好的信噪比记录了地震的现场响应。在1–9 Hz频带上计算了接收器功能类型的水平与垂直频谱之比（HVSR），并在此处显示了在1、5和9 Hz时得到的HVSR轮廓图。空间位置响应分布显示，从东部的楚加奇山山麓到安克雷奇的西部有相当大的变化。从城市东部较旧的冰川沉积区到布特格格湾组所占据的区域，特别是在与Knik Arm相邻的区域，工地响应分别以1 Hz和5 Hz分别增加3和3.5倍。 。在9 Hz时，东西向的HVSR变化较小，大约减小了2倍。此外，在1和5 Hz时，HVSR的变化趋势与从地面测量获得的土壤类别具有很好的相关性。深度在0–30 m范围内的S波速度的变化，以及对锚固地面失效敏感性的可用结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号