1.The soil profile of a site obtained with exploratory boring is shown in figure. A square (1 ft x 1 ft) precast concrete pile 30 ft long (shown in figure) is planned to be driven in order to transmit the load of a building. Consider the base of pile cap at the depth of 4 ft below the ground. Desired factor of safety is 3. Please calculate the static load carrying capacity of a single pile.