Empirical correlation of SPT blow counts versus shear wave velocity for different types of soils in Dholera, Western India

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

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2017, vol. 86, issue 3, No 15, 1306 pages

Abstract: Abstract In the present study, a set of correlation relations between standard penetrations tests (SPT-N values) and shear wave velocity (Vs) for different categories of soils is developed for Dholera region, Gujarat state, Western India. Shear wave velocities were measured using multichannel analysis of surface wave (MASW at 42 sites) and by PS logging (at 16 sites). SPT-N values were taken in total 87 geotechnical boreholes at depth interval of 3 m. Seismic site classification is done as per National Earthquake Hazards Reduction Program of the USA. Total 336 pairs of SPT-N values and Vs data at different depths are used to develop the regression correlation between uncorrected SPT-N value and Vs and compared with the results of other workers from India and worldwide for all soils type. It is found that regression correlations developed for clay and all soils are almost similar to each other, for sand, the coefficient value is less and for silt, it is higher. The new regression equation gives good prediction performance. The present correlation can be used for the seismic hazard study for the study area and also for the other areas having similar soil strata using a process of validation.

Keywords: Shear wave velocity; Dynamic properties of soil; Geophysical testing; Standard penetrations tests; Multichannel analysis of surface wave; Regression correlation (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1007/s11069-017-2744-3

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