Question
Download Solution PDFAs per IS 4651(Part 2) : 1989, if the value of coefficient of earth pressure 'Ko' at rest is 0.4, then the soil type is __________.
This question was previously asked in
DDA JE Civil Official Paper (Held On: 28 Mar, 2023 Shift 2)
Answer (Detailed Solution Below)
Option 1 : loose sand
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Detailed Solution
Download Solution PDFExplanation:
Coefficient of Earth Pressure at rest:
\(\rm{{{\rm{k}}_{\rm{r}}} = \frac{{ {\rm{μ }}}}{{1 - {\rm{μ }}}}}\)
Where,
μ is the coefficient is the Poisson ratio.
As per IS 4651 (Part 2): 1989, Table 1
| Soil | Ko |
| Loose sand | 0.4 |
| Dense sand | 0.5-0.6 |
| Sand, well tamped | 0.8 |
| Soft clay | 0.6 |
| Hard clay | 0.5 |
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