Answer:
The lateral stress ratio of the soil at point A is 0.3
Step-by-step explanation:
given that; Unit weight = 20 kNm⁻³ at point A 5m below the ground surface,
vertical stress (
) = 20 kNm⁻³ × 5m ⇒ 100 kNm⁻²
vertical stress (
) = 100kPa
note that; Horizontal Stress (
) is given by k(
)
where "k" is the lateral stress ratio
= k(
)
k =
÷
![V_(stress)](https://img.qammunity.org/2021/formulas/engineering/college/f8w7ejbagiwexqjrxgfzcehjj9tjp4b61n.png)
k = 30 kPa ÷ 100 kPa
k = 0.3