2. The soil borrow material to be used to construct a highway embankment has a mass unit weight of 110.0 pcf, a water content of
6%, and the specific gravity of the soil solids is 2.63. The contract specifications require that the soil be compacted to a dry unit weight of 122 pcf and the water content be held to 5.5%. a. How many cubic yards of borrow are required to construct an embankment having a 245,000-cy net section volume
1 answer:
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Answer:
8 mm
Explanation:
Given:
Diameter, D = 800 mm
Pressure, P = 2 N/mm²
Permissible tensile stress, σ = 100 N/mm²
Now,
for the pipes, we have the relation as:
where, t is the thickness
on substituting the respective values, we get
or
t = 8 mm
Hence, the minimum thickness of pipe is 8 mm