3. A cantilever sheet pile is 8 m. Iong with a depth of embedment of 3.5m. Angle of friction of the soil supported by the sheet pile is 30' and has a unit weight of 20 kN/m3. d) Compute the required depth of embedment to ensure stability.

A square pile of section 30 cm x 30 cm and length 10 m penetrates a deposit of clay having c = 50 kN/m² and the adhesion factor = 0.8. The load carried by the pile shaft only is

PLEASE ANSWER CLEARLY SHOWING ALL EQUATIONS AND WORK PLEASE.     A 18-m-long pile (400mm by 400mm) extends through loose soil (γ = 16 kN/m3) to dense sand with γ = 18 kN/m3 and φ' of 37°. Estimate the ultimate pile point load (kN) with Meyerhof's method.

(a) A 500 mm diameter bored pile is to be designed to support a safe vertical load of 25P kN. Where P = 8. The factor of safety is 2.5 and it is to be applied to the ultimate load. The succession of strata is 2 m of loose fill overlying firm, becoming stiff clay with depth. No side friction is to be allowed in the fill. For the clay the undrained cohesion cu (kPa) = 3z+40, where z is the depth in metres below ground level. %3D Calculate the minimum length of the pile required to support the load. Take a = 0.4, and Nc = 9. %3D (b) A pile weighing 8P kN has been proposed to be driven down into three layers of different materials as shown in Figure Q2, to support a structural load from a proposed building project. Where P = 8. Calculate the number of piles needed to support an ultimate structural load of Qu MN. Where Qu is the last two digits of your students' identification number (SID). For pile in cohesionless soil, assume o = 4'.