Characterization of Ground Response and Liquefaction for Kathmandu City Based on 2015 Earthquake Using Total Stress and Effective Stress Approach

Shiv Shankar Kumar, Pradeep Acharya, Pradeep Kumar Dammala and Murali Krishna Adapa
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Shiv Shankar Kumar: National Institute of Technology, Patna, India
Pradeep Acharya: Indian Institute of Technology, Guwahati, India
Pradeep Kumar Dammala: Indian Institute of Technology, Jodhpur, India
Murali Krishna Adapa: Indian Institute of Technology, Tirupati, India

International Journal of Geotechnical Earthquake Engineering (IJGEE), 2020, vol. 11, issue 2, 1-25

Abstract: This chapter presents the seismic vulnerability of Kathmandu City (Nepal), based on Nepal 2015 earthquake, in terms of the ground response and liquefaction potential. The spatially well-distributed 10-boreholes and ground motions of Mw 7.8 Nepal 2015 earthquake recorded at five different stations were adopted for the analysis. The range of peak ground acceleration and peak spectral acceleration were in the order of 0.21g-0.42g and 0.74g-1.50g, respectively. Liquefaction potential of the sites were computed using both semi-empirical approach and liquefaction potential index (LPI). LPI shows that the 6 sites out of 10 sites are at high risk of liquefaction.

Date: 2020
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