The Delft Sand, Clay & Rock Cutting Model, 2019a

Basic Soil Mechanics.
Figure 2-43: A BTS test after failure.
2.7. Nomenclature.
Gs Specific gravity -
ρs Density of the soil kg/m 3
ρw Density of water kg/m 3
g Gravitational constant (9.81 m/s 2 ) m/s 2
Mt Mass of the soil, total mass kg
Ms Mass of the solids kg
Mw Mass of the water kg
Ma Mass of the air kg
Vt Volume of the soil, total volume m 3
Vs Volume of the solids m 3
Vw Volume of the water m 3
Va Volume of the air m 3
ρt Density of the soil kg/m 3
γt Unit weight of the soil N/ m 3
g Gravitational constant (9.81 m/s 2 ) m/s 2
Dr Relative density -
e Current void ratio of the soil in-situ -
emax Void ratio of the soil at its loosest condition -
emin Void ratio of the soil at its densest condition -
n Porosity of the soil in-situ -
nmax Porosity of the soil at its loosest condition -
nmin Porosity of the soil in its densest condition -
Vv Volume of the voids/pores m 3
Vs Volume of the solids/grains/particles m 3
n Porosity -
e Void ratio -
Ct Sorting coefficient -
C Sorting coefficient -
K Hydraulic conductivity m 2
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