Verification of Liquefaction Potential during the Strong Earthquake at the Border of Thailand-Myanmar

ABSTRACT

The study presents a liquefaction potential analysis for the Thailand-Myanmar border area due to the earthquake. Three sites reported liquefaction during Tarlay earthquake in 2011 were investigated including a microtremor to obtain the shear wave velocity profile and depth of engineering bedrock. Next-generation attenuation model was used to estimate the peak ground acceleration at the liquefied sites. A seismic ground response analysis was then conducted, and the result revealed that the shallow sand layers were very vulnerable to undergo liquefaction. The results also showed a similar tendency to the predictions based on the empirical methods.

KEYWORDS:

• Liquefaction
• seismic response analysis
• microtremor
• next generation attenuation model
• border of Thailand-Myanmar

Acknowledgments

The authors would like to thank Dr Suttisak Soralump for providing relevant data and useful suggestions throughout the research. The first author is grateful for a Ph.D. scholarship from the AUN/SEED-Net (JICA).

Additional information

Funding

This research was supported by the Thailand Research Fund [DBG-6180004] and the Ratchadapisek Sompoch Endowment Fund (2019), Chulalongkorn University [762003-CC]. This work was also partially supported by the International Collaboration Research Fund (2019), University of Bengkulu. The work was performed under the Japan-ASEAN Science and Technology Innovation Platform [JASTIP-WP4].