Civil and Environmental Engineering 4426A/B Lecture Notes - Lecture 18: Capacity Factor, Soil Horizon
15 Dec 2015
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Document Summary
The bearing capacity of our soil was determined by its ability to resist to the maximum average contact pressure exerted by the embankment on the soil. Our basic soil profile consists of three layers of stiff to firm clay in uniform layers across the site. Two different models were used to evaluate the bearing capacity of the soil layers and the more conservative value will be used for preliminary site evaluation purposes. The first method used in this analysis was proposed by davis and brooker (1973) and assumes that there is a linear increase of strength with depth in the bearing capacity of homogeneous cohesive-frictional soils. As shown in figure 3 from the given graphs and data, the section of points below 7 metres follows this assumed line. The parameters used in this analysis are as follows: qf = the ultimate bearing capacity. Cuo = the undrained shear strength at the surface of the soil.
