Evaluation of Surface Soil Amplification for Wide Areas in Lima, Peru

Author:

Sekiguchi Toru, ,Calderon Diana,Nakai Shoichi,Aguilar Zenon,Lazares Fernando,

Abstract

In order to create a soil amplification map for Lima, Peru, parameters that correlate best with amplification are examined. Shallow shear wave velocity profiles estimated from MASW measurements at 105 sites were used to provide amplification factor AvTF. AVs10 seems to be the best value for estimating amplification in Lima from the data available. We have attempted to create AVs10 map correlating three parameters – elevation, H/V peak period, and soil type. From this AVs10 map, we have estimated an amplification map for Lima.

Publisher

Fuji Technology Press Ltd.

Subject

Engineering (miscellaneous),Safety, Risk, Reliability and Quality

Reference10 articles.

1. Z. Aguilar, “Seismic Microzonation of Lima,” Japan-Peru Workshop on Earthquake Disaster Mitigation, Japan-Peru Center for Earthquake Engineering and Disaster Mitigation (CISMID), Faculty of Civil Engineering, National University of Engineering, Lima, Peru, 2005.

2. R. D. Borcherdt and J. F. Gibbs, “Effects of local geological conditions in the San Francisco Bay region on ground motions and the intensities of the 1906 earthquake,” Bulletin of the Seismological Society of America, Vol.66, pp. 467-500, 1976.

3. M. Matsuoka and S. Midorikawa, “The digital national land information and seismic microzoning,” Japanese Society of Architecture, Symposium of Soil Vibration, No.22, pp. 23-34, 1994.

4. D. Wald and T. Allen, “Topographic Slope as a Proxy for Seismic Site Conditions and Amplification,” Bulletin of the Seismological Society of America, Vol.97, No.5, pp. 1379-1395, 2007.

5. W. Joyner and T. Fumal, “Use ofMeasured Shear-Wave Velocity for Predicting Geologic Site Effects on Strong Ground Motion,” Proc. 8th World Conf. on Earthq. Eng., pp. 777-783, 1984.

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