GATE Civil Engineering (CE) 2017 Shift 1 Solved Paper

It is proposed to drive H-piles up to a depth of 7 m at a construction site. The average surface area of the H-pile is 3 m² per meter length. The soil at the site is homogeneous sand, having an effective friction angle of 32°. The ground water table (GWT) is at a depth of 2 m below the ground surface. The unit weights of the soil above the below the GWT are 16 kN/m³ and 19 kN/m³, respectively. Assume the earth pressure coefficient, K = 1.0, and the angle of wall friction, δ = 23°. The total axial frictional resistance (in kN, up to one decimal place) mobilized on the pile against the driving is ________