Location
San Diego, California
Presentation Date
30 Mar 2001, 1:30 pm - 3:30 pm
Abstract
The paper attempts to illustrate the potential application of simulation techniques for interpretation and characterization of microtremors. Simulations are performed with two types of source distribution models, both involving a large number of Dirac wave type sources randomly activated on the surface of a horizontally layered ground underlain by the half-space. Attempt is made to utilize the technique for the interpretation of microtremors at KASAI site in Chiba prefecture (Japan). The site has a deep base layer and weak impedance contrast. The parameter RF, defined as the ratio between horizontal and vertical input forces at the source, is used as a measure of the proportion of Love wave components in combination with Rayleigh waves contained in simulated microtremors. The microtremor records at KASAI seem to correspond to the simulation with RF =O. 1, indicating predominance of the Rayleigh wave components.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
4th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2001 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Tokeshi Nagamine, Juan Carlos; Sugimura, Yoshihiro; and Karkee, Madan B., "Characterization of Microtremor Records Using Simulated Microtremors" (2001). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 17.
https://scholarsmine.mst.edu/icrageesd/04icrageesd/session03/17
Included in
Characterization of Microtremor Records Using Simulated Microtremors
San Diego, California
The paper attempts to illustrate the potential application of simulation techniques for interpretation and characterization of microtremors. Simulations are performed with two types of source distribution models, both involving a large number of Dirac wave type sources randomly activated on the surface of a horizontally layered ground underlain by the half-space. Attempt is made to utilize the technique for the interpretation of microtremors at KASAI site in Chiba prefecture (Japan). The site has a deep base layer and weak impedance contrast. The parameter RF, defined as the ratio between horizontal and vertical input forces at the source, is used as a measure of the proportion of Love wave components in combination with Rayleigh waves contained in simulated microtremors. The microtremor records at KASAI seem to correspond to the simulation with RF =O. 1, indicating predominance of the Rayleigh wave components.
