A 5-kN horizontal load acts on the column shown in Figure Q3 ata location of 1.7 m above the ground level. 50 kN Elev. 0.0GWT-Elev.-1.1 m Elev.-2.0 m_ Figure Q3 (1) Determine a suitablefooting size, using the following information: The site soil isgranular soil with an angle of friction 20°, a unit weight of16.5kN/m (above the groundwater table) and a saturated unit weightof 19.8 16.5kN/m3: Factor of safety FS-2.5; (2) If the horizontalload were increased to 10-kN, what would be the footing size? (3)If the ground water table subsides to a depth outside thefoundation influence zone, what would be the factor of safety ofthe footing you designed in (1)? (Hint: You may want to design asquare footing)
