Example $1$: For unknown soil the three following test were performed, each

test was run for two soil samples. Please, find $c,,c^{\text{'}},$ and ${}^{\text{'}}.$ For the UU test, find

$c_u,{}_u$ and $q_u.$

CD Test:

Sample $1$: ${}_1=330$kPa,${}_3=85$kPa,$u=0$kPa

Sample $2$: ${}_1=645$kPa,${}_3=178\mathrm{.}48$kPa,$u=0$kPa

Answer:

CD Test:

$c^{\text{'}}=11\mathrm{.}869$kPa,${}^{\text{'}}=32\mathrm{.}84$

CU test:

Sample $1$: ${}_1=380$kPa,${}_3=135$kPa,$u=50$kPa

Sample $2$: ${}_1=771$kPa,${}_3=304\mathrm{.}48$kPa,$u=126$kPa

Answer:

CU Test:

$c=22\mathrm{.}5648$kPa,$=23\mathrm{.}2805$

and $c^{\text{'}}=11\mathrm{.}869$kPa,${}^{\text{'}}=32\mathrm{.}84$

UU Test:

Sample $1$: $,=400$kPa,${}_3=177$kPa,$u=70$kPa

Sample $2$: ${}_1=830$kPa,${}_3=607$kPa,$u=500$kPa

Answer:

UU:

$c_u=111\mathrm{.}5$kPa,${}_u=0$