3. A vertical circular gate in a tunnel 8 m in diameter has oil on the other side and air on the other side as shown. If oil is 12 m above the invert and the air pressure is 40 kPa, compute for the location of single support to hold in the position above the invert. 12 m oil (0.80) 3. Fail = 3155.87 kN YR(oil) = 4.5 m from top Fair = 2010.62 kN y = 2.62 m circular gate 4. F = 242.70 kN YR = 3.66 m from surface air P = 40 kPa support y=? 8 m 4. A vertical circular gate 3 m diameter is submerged in water with its top is 2m below the water surface. Compute the total pressure and its location from the water surface ?