Chapter 18, Problem 18.9P

Refer to Figure 18.23. Given $L_1=3\text{m}$, $L_2=6\text{m}$, $l_1=1.5\text{m}$, $\gamma =16.5\text{kN}/{\text{m}}^3$, ${\gamma }_{\text{sat}}=19.0\text{kN}/{\text{m}}^3$ and ${\varphi }^{\prime }=35°$.

1. a. Find the required depth of the sheet pile, increasing the theoretical estimate by 30%.
2. b. Determine the force in the tie rods if they are spaced 3 m apart horizontally.
3. c. Find the maximum bending moment in the sheet pile.