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Max. Marks: 100

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APJ ABDUL ६410300 0481607801, UNIVERSITY

Sixth Semester B.Tech Degree Regular and Supplementary Examination July 2021

Course Code: CE364
Course Name: ADVANCED FOUNDATION ENGINEERING

Graph paper to be supplied
PARTA
Answer any two full questions, each carries 15 marks.
A strip footing 1.2 m wide is loaded at a depth of 1.5 m in non-cohesive soil
having corrected N value 20. Water table is at a depth of 2 m below the ground
surface. Determine the safe bearing capacity using Teng’s equation for a FS3.
A footing of size 2m x 2m rest with its base at a depth of 1.5m from the ground
surface. The footing carries a load of 2000KN. The soil stratum from 1.5m to 9m
is soft clay with Cc = 0.27 and நே = 1.08. The clay stratum is normally
consolidated. Compute the settlement of clay layer if the soil from the surface is
saturated and has a unit weight of 2010/1777. Assume load spreading of 2 vertical
to 1 horizontal.
A water tank foundation has a footing of size 6 x 6m, founded at a depth of 3m
below ground level in a medium dense sand stratum of great depth. The
corrected average SPT value obtained from the site investigation is 22. The
foundation is subjected to a vertical load at an eccentricity of B/10 along one of
the axes. Estimate the ultimate load, Qui by IS code method. Given that ಥ = 30°,
c =0, ४ = 18.5kN/m’, 14, = 30.14, Ng = 18.4, Ny = 22.4.
List the different methods of analyses of raft foundations? Explain the any one
method in detail.
Explain the effect of water table on the bearing capacity of soil.
A footing 4m x 2m in plan, transmits a pressure of 150 kN/m? on a cohesive soil

having E = 6:10“ kN/m? and u=0.50. Determine the immediate settlement of the

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Duration: 3 Hours

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