Limestone

As shown, a $3$:$1$ slope exists at a site with three clayey soil layers underlain by limestone$.$ Your assignment is to evaluate the stability of this slope. Tests on undisturbed samples from the three soil layers have yielded the following properties:

$\backslash$table$[[,$from UU triaxial tests,from CU triaxial tests$],[\backslash$table$[[$Soil$],[$Layer$]],\backslash$table$[[{}_t$