Find out the corrected SPT N value (N1)60(CORR). Given: (1) Field N value = 17; (2) Testing Depth = 6 m below ground lev

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Find out the corrected SPT N value (N1)60(CORR).
Given:
(1) Field N value = 17;
(2) Testing Depth = 6 m below ground level;
(3) Soil Type: Fine sand with trace mica;
(4) The unit weight of the soil above the ground water is 19
kN/m3 ;
(5) No water table was observed within this depth. (6) Standard
penetration test was performed with standard split spoon sampler
and hand dropped donut hammer. Bore diameter was 100 mm.