地震地磁观测与研究2016，Vol.37Issue(4)：73-79,7.DOI:10.3969/j.issn.1003-3246.2016.04.014
粉质粘土台基处理方式对地震台背景噪声影响分析
Impact analysis of different processing methods on background noise of silty clay station base
摘要
Abstract
By calculating the acceleration power spectral density in different range of frequency, we could analyze the features of background noise in different silty clay station base and the impact of different processing methods for station base on background noise. We find that while the frequency is in the range of 0.1—3 Hz, the depth and the material of station base have very little effect on background noise, while the frequency is in the range of 3 — 49.8 Hz, the background noise in 2.5 m deep concrete station base and 1.5 m deep steel station base is 2 — 4 dB lower than that of 0.5 m deep concrete station base; background noise of 1.5 m deep steel station base is lower than 2.5 m deep concrete station base; the background noise level of day time in spring is higher than in winter, but that of night time is just the opposite.关键词
台基处理/Q330S+/噪声/功率谱密度/对比观测Key words
station base processing/Q330S+/background noise/power spectral density/experimental observation引用本文复制引用
王宝柱,乌尼尔,刘平仁..粉质粘土台基处理方式对地震台背景噪声影响分析[J].地震地磁观测与研究,2016,37(4):73-79,7.基金项目
新疆喀腊塑克水利枢纽大坝强震及地震台网维护、数据处理与分析项目 （）
