Question

PROBLEM 3-2. - Given the braced excavation cross-section shown below, in which the struts will be spaced every 10 ft. along the excavation's length, and the sheeting is continuous sheet piling, you are to determine: A. the apparent earth pressure diagram that should be used to design this excavation support system (and draw it). B. the load in each of the 3 strut levels using the "moment method" over full depth. C. the depth to which the sheet piles must be driven below the excavation bottom to engage sufficient passive resistance to counteract the apparent earth pressure diagram over the lower half of the sheeting exposed below Strut 2. STRUT X SAND STRUT Y $=34° 8=125 pef STRUT 2 Depth for Passive Resistance part c

Answer 1

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