Task $3$

From the site mentioned in the brief, soil samples were taken and tested for the soil physical and strength properties.

From the given data determine these soil properties and analyse the results, how important are these test data and

how can they be integrated within geotechnical design procedures.

If a soil sample tested in a direct shear box of $60mm$ by $60mm$ and the maximum readings for normal loads

of $0\mathrm{.}3,0\mathrm{.}5$ and $1\mathrm{.}0kN$ were $202,265$ and $511kN,$ determine the strength parameters corresponding to

effective stress.

Triaxial test is another method or test of determining shear strength of a soil, explain in brief the formulae

that are used and compare the two and indicate what is the difference in the information derived from the

two tests.

The following table shows the readings from a CBR test, if the standard penetration of $2,4,6$ and $8mm$

having plunger loads of $11\mathrm{.}5,17\mathrm{.}6,22\mathrm{.}2$ and $26\mathrm{.}3kN$ which corresponds to $100\%$ CBR$,$ determine the CBR

for the tested soil.