QUESTION THREE

$[21]$

a$)$ Given that the total weight of soil sample is $1200$ g $,$ total volume of the soil sample is $850c{m}^3,$ water content $(w)$ is $14\mathrm{.}3\%$ and the specific gravity of the solid is $2\mathrm{.}65.$

i$.$ Derive the weight$-$volume relationships for the soil phase.

ii$.$ Determine the following:

a$.$ Moisture content

b$.$ Void ratio

c$.$ Porosity

d$.$ Degree of saturation

e$.$ Dry unit weight

$(5)$

$(2)$

$(2)$

$(2)$

$(2)$

$(2)$

b$)$ List and outline the difference among the five consistency limits

$(6)$

c$)$ Outline four reasons for conducting monitoring in soil or rock slope or underground excavations $(4)$

QUESTION FOUR

$[11]$

Mines can often present much more dangerous hazards than your regular industrial facility. List atleast five risks $($Safety$,$ Health and Environment$)$ associated with mining and provide discuss on each.

QUESTION FIVE Moring unveyor $$ Chemicels $-$ Methsice $-$ highly themmsle

$(4)$

$\frac{14\mathrm{.}3}{100}=\frac{w_w}{1800}$

$w_w=171\mathrm{.}6$

$w_s=454\mathrm{.}74$