vertical sheet pile is to support horizontal backfill $7\mathrm{.}5$ m high of Ka $=0\mathrm{.}361$ and Kp $=2\mathrm{.}77.$ Unit weight of backfill is $18\mathrm{.}15$ kN$/$m$3/$ An anchor bolt is placed $1\mathrm{.}2$ m below the top of sheet pile $($anchor bolt is used to support the wall from active force$).$

a$)$ Compute the location of zero stress on the sheet pile base from the degree line

b$)$ Compute the minimum length of embedment of sheet pile

c$)$ Compute the tension at the anchor bolt

Answer: a$)1\mathrm{.}12$ m$,$b$)4\mathrm{.}13$ m c$)13\mathrm{.}75$ kN