ESTM $1175-$ Lab $5$

Class Example $-$ Grid Method

Using the grid elevations obtained from the site contour data, calculate the

volume of earthwork required to grade the lot to the finished elevations

indicated below;

The lot is to be graded to a downward slope of $0\mathrm{.}2\%$ from E to W from

line D at an elevation of $668\mathrm{.}62$

Grid size is to be $20m20m$

Swell faction factor $=0\mathrm{.}80$

Swell factor $=0\mathrm{.}77$

Determine: a$)$ Volume of Fill Material $-$ bank measure

b$)$ Volume of Cut Material $-$ bank measure

c$)$ Volume of fill requires $-$ loose

d$)$ Volume of cut to move $-$ loose

e$)$ Volume of cut to move $-$ loose

f$)$ Number of truck to remove material, if a tandem

dump truck can haul $18\mathrm{.}5m^3$ of loose material.

explain how the grid$/$table works