CLC number: TU4
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Received: 2005-12-20
Revision Accepted: 2006-06-21
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CHE Ai-lan, IWATATE Takahiro, ODA Yoshiya, GE Xiu-run. Study on the applicability of frequency spectrum of micro-tremor and dynamic characteristics of surface ground in Asia area[J]. Journal of Zhejiang University Science A, 2006, 7(11): 1856-1863.
@article{title="Study on the applicability of frequency spectrum of micro-tremor and dynamic characteristics of surface ground in Asia area",
author="CHE Ai-lan, IWATATE Takahiro, ODA Yoshiya, GE Xiu-run",
journal="Journal of Zhejiang University Science A",
volume="7",
number="11",
pages="1856-1863",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.A1856"
}
%0 Journal Article
%T Study on the applicability of frequency spectrum of micro-tremor and dynamic characteristics of surface ground in Asia area
%A CHE Ai-lan
%A IWATATE Takahiro
%A ODA Yoshiya
%A GE Xiu-run
%J Journal of Zhejiang University SCIENCE A
%V 7
%N 11
%P 1856-1863
%@ 1673-565X
%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.A1856
TY - JOUR
T1 - Study on the applicability of frequency spectrum of micro-tremor and dynamic characteristics of surface ground in Asia area
A1 - CHE Ai-lan
A1 - IWATATE Takahiro
A1 - ODA Yoshiya
A1 - GE Xiu-run
J0 - Journal of Zhejiang University Science A
VL - 7
IS - 11
SP - 1856
EP - 1863
%@ 1673-565X
Y1 - 2006
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2006.A1856
Abstract: The dynamic characteristics of ground soil using micro-tremor observation in Asia (Zushi and Ogasawara (Japan), Xi’an (China), Manila (Philippines), and Gujarat (India)) are studied. Ground micro-tremor signals were observed and analyzed by fast Fourier transform method (FFT). The response of ground soil to frequency of ground micro-tremor is revealed, and functions with frequency-dependence and frequency-selection of micro-tremor for different foundation soil strata are also researched. The horizontal to vertical spectral ratio (H/V, Nakamura technique) of micro-tremor observed at the surface ground was used to evaluate the site’s predominant period. This paper also discusses the application of micro-tremor on site safety evaluation, and gives the observed calculation results obtained at multiple points. The experimental foundation and the deduction process of the method are described in detail. Some problems of the method are pointed out. Potential use of the technique’s good expandable nature makes it a useable means for preventing and reducing disaster’s harmful effects.
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