Subject: foundation engineering
Extracted text: Q1): The standard penetration test was carried out in a coarse sand at the site of the multi-story building and the following results are summarized as shown in the table below: Blows / 15 cm Notes Depth (m) 0- 15 15 - 30 30 - 45 2.5 - 4 5 6 8 7.5 - 9 12 12 15 Water table at 6 m 15 - 16.5 18 18 20 17 - 18.5 25 - 26.5 21 21 19 25 25 25 35 - 36.5 30 30 35 40 100 Refusal For the depth of 25 – 26.5 only, calculate the blow count value, N, and correct the N value for water table and overburden pressure. Note that the dry unit weight is 14 kN/m and the saturated unit weight is 18 kN/m³.