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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 2m below the ground surface. The unit weights of the soil above and 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 friciton, δ=23∘. The total axial frictional resistance (in kN, up to one decimal place) mobilized on the pile against the driving is 390.78 |
Answer» 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 2m below the ground surface. The unit weights of the soil above and 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 friciton, δ=23∘. The total axial frictional resistance (in kN, up to one decimal place) mobilized on the pile against the driving is
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