Calculate required thrust restraint lengths for the horizontal bends indicated in the table belowusing Equation $8-3$ in M$41.$

Provide backup hand calculationsusing the following designparameters:

i$.$Calculate valves as dead$-$ends

ii$.$Restrained Joint Safety Factor $($Sf$)=1\mathrm{.}5$

iii.Design Internal Pressure $($Pi$)=$ Pw $+$ Psowhere Pw $=150$ psi and Ps $=100$ psi.

iv$.$Soil Density $$Unsaturated Soil Conditions $=110$ pcfScenarioNominal Size $($in$)$Horizontal BendSoilTrenchRestrained Length $($ft$)11290$GWType $52845$SPType $531622\mathrm{.}5$GWType $5424$Dead$-$EndGWType $4$