Extracted text: Homework (NO.1) The following table gives the variation of the field standard penetration number blows (N) in sand deposit: The ground water table is located at depth of 6m. The dry unit weight of sand from 0 to a depth of 6m is 18kN/m', and the saturated unit weight of sand for depth of 6m to 12m is 20.2kN/m³. Use the relationship to calculated correct (N) of standard penetration test against overburden effect. Depth (m) 1.5 No. of blows (N) 3 8 4.5 9. 6. 7.5 13 9 14