MEASUREMENT OF SHEAR STRAIN IN MAP LIQUEFACTION AREA FOR EARTHQUAKE MITIGATION IN BENGKULU CITY

Farid, Muhammad (2018) MEASUREMENT OF SHEAR STRAIN IN MAP LIQUEFACTION AREA FOR EARTHQUAKE MITIGATION IN BENGKULU CITY. TELKOMNIKA, 16 (4). pp. 1597-1606. ISSN 1693-6930

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Abstract

Bengkulu city is well-known as a high-risk area for an earthquake. One of the effects of the earthquake is liquefaction, the phenomenon in which the strength and stiffness of the soil are reduced by shock. The researchers measured the quantity of liquefaction by knowing the value of Vs30 values that can be obtained from the United States Geological Survey (USGS). In this study, however, we measured liquefaction based on the shear strain value (γ). Here, the shear strain values could be determined by measuring the seismic vulnerability index and the peak ground acceleration. The vulnerability index was obtained by measuring the resonance of the frequency and the amplification factor using a short period seismometer with 3 components (2 horizontal components and 1 vertical component), whereas the peak ground acceleration was obtained from the earthquake data that happened in Bengkulu City in 2000. The result showed that Vs30 and shear strain negatively correlated.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Math & Natural Science > Journal
Depositing User: 161 Septi Septi
Date Deposited: 11 Mar 2019 08:39
Last Modified: 11 Mar 2019 08:39
URI: http://repository.unib.ac.id/id/eprint/17484

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