Depth Of Foundation
Bearing Capacity of Soil Density of Soil Water Table Self weight of Structure Live Load of Structure Wind Load & Seismic Load (Earthquake) Rankine's Formula Df=Minimam Depth of Foundation p=Bearing Capacity of soil w=density of soil θ=Angle of proposed Soil Complex Given data: Load on the foundation ( p ) = 370KN/m 2 Unit weight of soil (w) = 17KN/m 3 The angle of repose of soil (θ )= 35° Now, we will calculate the minimum depth of foundation ( Df )by using Rankine's formula. Where, Df = [( p ÷ w ) × ( 1- sinθ ÷ 1+sinθ )2] = [( 370 ÷ 17 ) × ( 1- sin35° ÷ 1+sin35° )2] = [(21.764 ) × ( 1- 0.5735 ÷ 1+ 0.5735 )2] = [ 21.764 × ( 0.4265 ÷ 1.5735 )2] = [ 21.764 × (0.271)2] = [21.764 × 0.07346] = 1.598m. The minimum depth of foundation for the above-given data is calculated as 1.598 by using Rankine's formula. In the following table, I have given the angle of re...