English  |  正體中文  |  简体中文  |  Items with full text/Total items : 66984/66984 (100%)
Visitors : 23024555      Online Users : 293
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version


    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27519


    Title: Comparison of three different methods in investigating shallow shear-wave velocity structures in Ilan, Taiwan
    Authors: Kuo,CH;Cheng,DS;Hsieh,HH;Chang,TM;Chiang,HJ;Lin,CM;Wen,KL
    Contributors: 地球物理研究所
    Keywords: AMBIENT NOISE;ARRAY MEASUREMENTS;JOINT INVERSION;H/V SPECTRUM;MICROTREMOR;BASIN
    Date: 2009
    Issue Date: 2010-06-29 18:40:12 (UTC+8)
    Publisher: 中央大學
    Abstract: The Central Weather Bureau (CWB) and National Center for Research on Earthquake Engineering (NCREE) launched a project to build an engineering geological database for strong-motion stations in Taiwan in 2000. The project measures shear-wave velocity using the suspension PS-logging method. In this study, we conduct array measurements of microtremors and apply the stress wave propagation method (SWPM) at seven free-field strong-motion stations in Ilan County to estimate shallow shear-wave velocity structures. We focus on the sediment layers of the top 100 in to compare the shear-wave velocity structures of the three different methods. There are some misfits among the results of the three different methods; so we calculate the values of Vs(30), Vs(100) and plot S-wave travel-time curves of these methods for each site to analyze the misfits effectively. This analysis helped us to prove the efficiency of the microtremor array method in investigating shear-wave velocity structures in the shallow subsurface. Moreover, the horizontal-to-vertical ratios of microtremors for each survey point show the existence of divergence at the same site. We considered this as evidence that misfits arc caused by the heterogeneous nature of sediments and also due to the nature of the methods as being one-, two- and three-dimensional. Furthermore, the average shear-wave velocity structure of microtremor arrays may be more representative of the whole site. (C) 2008 Elsevier Ltd. All rights reserved.
    Relation: SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
    Appears in Collections:[地球物理研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML411View/Open


    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明