LT$-6.$ A $12-$inch diameter pipe pile $(7/16$ inch wall thickness$)$ that was driven closed end to

depth $=108ft.$ and then filled with concrete was load tested and produced the following results.

The concrete cylinder made from the fill concrete was tested the day of the load test and found to

have $4560$ psi compressive strength.

A$.$ Determine the Allowable Design Load for this pile, using both the Davisson

and $\frac{B}{10}$ methods.

B$.$ What proportion of the full test load was carried in side friction and how

much was in end bearing?