Experimental Study on the Behavior of Square-Skirted Foundation Rested on Gypseous soil Under Inclined Load

This work investigates experimentally the effect of using a skirt with square foundation 100 mm width resting on dry gypseous soil (i.e., loose 33% relative density), and subjected to an inclined load. Previous works did not study use skirted rested The investigated was brought from Tikrit city 59% gypsum content. Standard physical chemical tests selected were carried out. Model laboratory out determine load-settlement behavior load various Skirt depth (Ds) (B) ratio Ds/B (0,0.5,1, and1.5). results show that improves load-carrying capacity reduces settlement amount improvement increase increasing Ds/B. Bearing improved by about (193) %, Settlement (Sᵣ) reduced (1) % for without (0.14) at Ds/B, equal 1.5 θ =0° y-axis (Where is inclination angle applied load); bearing (162) =15° y-axis.