Liquefaction potential mapping in Dholera region of western India

Sarda Thokchom (), Vasu Pancholi, B. K. Rastogi and N. N. Dogra
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Sarda Thokchom: Institute of Seismological Research
Vasu Pancholi: Institute of Seismological Research
B. K. Rastogi: Institute of Seismological Research
N. N. Dogra: Kurukshetra University

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2018, vol. 92, issue 1, No 23, 479-495

Abstract: Abstract Liquefaction is one of the most destructive secondary effects caused by large earthquakes, which is most common in saturated soil deposits. In the present study, liquefaction potentials of soils in the southern part of Ahmedabad district of Gujarat state in western India are determined and a liquefaction potential map is prepared. For preparing this map, we studied lithology of the area, geotechnical soil properties, standard penetration resistance (N1)60, ground water level and peak ground acceleration. The liquefaction potential was determined using Japan Road Association method based on standard penetration test (SPT). We analyzed data from 63 boreholes for estimating liquefaction potential. N-value correction for SPT was carried out and normalized to achieve a standardized value of (N1)60. Peak ground acceleration (PGA) levels of 0.19 and 0.30 g are considered for the analysis. The results of the analyses indicate that the presence of predominantly clayey soil with high plasticity does not give high liquefaction. The liquefaction potential index maps are produced which can be used effectively for development plans and risk management practices in this area.

Keywords: Liquefaction; Geotechnical; Standard penetration test; Atterberg limit; Liquefaction potential index (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1007/s11069-018-3214-2

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