The clay deposit of thickness 10 cm and void ratio 0.5 undergoes settlement and now its final void ratio is 0.2. The thickness (cm) of the settlement layer is __________.
1
1
2
1.5
3
2
4
2.5
The clay deposit of thickness 10 cm and void ratio 0.5 undergoes settlement and now its final void ratio is 0.2. The thickness (cm) of the settlement layer is __________.