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Site Effect Classification Based on Microtremor Data Analysis Using a Concentration–area Fractal Model : Volume 22, Issue 1 (27/01/2015)

By Adib, A.

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Book Id: WPLBN0004019849
Format Type: PDF Article :
File Size: Pages 11
Reproduction Date: 2015

Title: Site Effect Classification Based on Microtremor Data Analysis Using a Concentration–area Fractal Model : Volume 22, Issue 1 (27/01/2015)  
Author: Adib, A.
Volume: Vol. 22, Issue 1
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Heydarzadeh, K., Afzal, P., & Adib, A. (2015). Site Effect Classification Based on Microtremor Data Analysis Using a Concentration–area Fractal Model : Volume 22, Issue 1 (27/01/2015). Retrieved from

Description: Department of Mining Engineering, Faculty of Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran. The aim of this study is to classify the site effect using concentration–area (CA) fractal model in Meybod city, central Iran, based on microtremor data analysis. Log–log plots of the frequency, amplification and vulnerability index (kg) indicate a multifractal nature for the parameters in the area. The results obtained from the CA fractal modelling reveal that proper soil types are located around the central city. The results derived via the fractal modelling were utilized to improve the Nogoshi and Igarashi (1970, 1971) classification results in the Meybod city. The resulting categories are: (1) hard soil and weak rock with frequency of 6.2 to 8 Hz, (2) stiff soil with frequency of about 4.9 to 6.2 Hz, (3) moderately soft soil with the frequency of 2.4 to 4.9 Hz, and (4) soft soil with the frequency lower than 2.4 Hz.

Site effect classification based on microtremor data analysis using a concentration–area fractal model

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