A 5 m wide braced excavation is made in a saturated clay,as shown in Figure P19.1, with the following properties:c = 20 kN/m?,0=0 and y =18.5 knm3 the struts are

spaced at 5m center to center in plan a. Determine the strut forces. b. Determine the section modulus of the sheet pile required,assuming oa170 MN/m?. c. Determine the maximum moment for the wales at levelsB and C. siov A