This question is incomplete, the complete question is;
The current vertical effective stress acting on soil is 100 kN/m².
The past maximum vertical effective stress was 200 kN/m².
The over consolidation ratio is:_________
a. 0.25
b. 4.5
c. 1
d. 2
Answer:
the over consolidation ratio is Option d. 2
Step-by-step explanation:
Given that;
The past maximum vertical effective stress = 200 kN/m²
The current/present vertical effective stress acting on soil = 100 kN/m²
The over consolidation ratio
OCR = Past effective stress / Current Effective stress
we substitute
OCR = 200 kN/m² / 100 kN/m²
OCR = 2
Therefore the over consolidation ratio is Option d. 2