QUESTION FIVE

$[25]$

Given that the mass of the slope material in the figure below is $38$ kg $,$ pull of gravity is $9\mathrm{.}8\frac{N}{k}g,$ frictional coefficient is $0\mathrm{.}52,$ and cohesion is $520\frac{N}{m^2}.$

Stability of slope

a$)$ Derive the mathematical expression for the factor of safety and determine how stable are the slopes?

b$)$ What happens to the stability of the slopes when $5$ litres $(5kg)$ of water is added to each of the slope materials?

QUESTION SIX

$[25]$

Failure to characterize the geological site and geological setting has too often resulted in needless structural damage, environmental disasters and loss of lives: Discuss the role of engineering geologists in engineering construction works, especially in slope stability analyses.

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