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GATE CE 2022: SOIL MECHANICS: 69
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Question 1
A sand layer lay over a clay stratum is 7m in depth. The water is 3m below ground level and the capillary zone is negligible. The effective stress on the top of the clay layer will be________.
(Take
, 
)
(Take
, ) Question 2
The value of coefficient of permeability for a uniformly graded sand of size D10 = 2 mm obtained from sieve analysis is __________mm/sec.
Question 3
At a site, the subsoil consists 6m thick layer of dry sand (e = 0.85,
= 14.3 kN/
, 
= 0.14mm, 
= 18.9 kN/
). The water table is located at 4m depth below G.L what is height of capillary rise (if C= 0.5
) and effective stress at the point where dry sand and saturated sand meet?
= 14.3 kN/ , = 0.14mm, = 18.9 kN/ ). The water table is located at 4m depth below G.L what is height of capillary rise (if C= 0.5) and effective stress at the point where dry sand and saturated sand meet?
Question 4
A standard penetration test was conducted in a silty soil having saturated density 18 kN/m3, the ground water table was found at a depth of 4.5 m. If the N value was determined as 28 at the depth of 5 m, then the corrected N value of the soil is
Question 5
In an unconfined compression test a sample of clay 80 mm long and 40 mm in diameter fails under a load of 145 N at 10% strain. Calculate the shearing resistance (kN/m2).
Question 6
A homogeneous clay layer 8 m thick is expected to have an ultimate settlement of 332mm. After a time span of 3 years, the average settlement was measured to be 199.2mm. For an average settlement of 237mm, the excess time required is _____________ years.
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Jul 14ESE & GATE CE
