Response of Borehole Strain Observation Data to Air Pressure Based on EEMD

Autor:	Hongwei Li, Meiqin Song
Rok vydání:	2020
Předmět:	Atmospheric pressure Strain (chemistry) Borehole Mineralogy Observation data Geology
Zdroj:	IOP Conference Series: Materials Science and Engineering. 750:012066
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/750/1/012066
Popis:	In this paper, based on the empirical mode decomposition (EEMD) method, considering the frequency dependent characteristics of the pressure response, the borehole strain observation data of Daixian station in Shanxi Province and the pressure observation curve of synchronous observation are decomposed, and the eigenmode function (IMF) sequences of different frequency bands are obtained. Then, on the same narrow frequency band of IMF, the one-dimensional regression analysis of borehole strain observation value and pressure change is carried out respectively, and the frequency dependent pressure response coefficient is obtained, which realizes the refined pressure correction of borehole observation data. The results show that this method can effectively deduct the influence of air pressure, and the frequency distribution characteristics of air pressure response are clear.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9a0c422e1ee3fd575e76f49af3f72132 https://doi.org/10.1088/1757-899x/750/1/012066 Zobrazit plný text záznamu