Data processing and rock & soil frequency spectrum characteristic analysis of microtremor signal

YANG Bo-xiong; HU Xin-he; CHEN Zhi-gao; LIU Hai-bo; LU Jie; OU Tong-geng

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Data processing and rock & soil frequency spectrum characteristic analysis of microtremor signal

更新时间：2026-06-25

- Data processing and rock & soil frequency spectrum characteristic analysis of microtremor signal
- Vol. 29, Issue 3, (2008)
- 作者机构：
  
  1. 中国地震局地震研究所,武汉,430071
  2. 湖北咸宁职业技术学院,湖北,咸宁,437100
- 作者简介：
- 基金信息：
- DOI：
  CLC： O329
- Online First：19 July 2013，
  
  Published：2008
- 稿件说明：
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YANG Bo-xiong, HU Xin-he, CHEN Zhi-gao, et al. Data processing and rock & soil frequency spectrum characteristic analysis of microtremor signal[J]. 2008, 29(3).
DOI：

YANG Bo-xiong, HU Xin-he, CHEN Zhi-gao, et al. Data processing and rock & soil frequency spectrum characteristic analysis of microtremor signal[J]. 2008, 29(3). DOI：

摘要

频谱是微动信号的一个重要动力学参数，微动信号的频谱特性与场地覆盖层厚度和地基土刚度的变化密切相关，既可反映岩土层的类型特征，又能反映工程场地的动力特性。详细探讨了目前较为常用的利用微动信号进行场地动力特性分析的方法，并对这些方法进行了研究和比较。简要介绍了功率谱估计方法，同时，通过实例分析了微动信号的变化规律和场地微动信号的频率响应特性。

Abstract

Frequency spectrum is one of the most important dynamical parameter for microtremor. Frequency spectrum characteristics of microtremor signal is closely related to the thickness of ground covering layer and the stiffness variation of overburden layer

which can reflect not only the type characteristic of rock and soil layer

but also the dynamic characteristic of project site. The current method that analyzing commonly the dynamic characteristic of site by microtremor signal has been discussed

researched and compared in detail. Meanwhile

the diversification rule has been analyzed through example; and the estimation of power spectrum and the frequency response characteristic of micro-tremor signal to the site rock and soil mechanism are introduced deeply.

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