Question

The ultimate bearing capacity of a 450mm diameter
plate is 200kN/m2. Determine the following

The ultimate bearing capacity of a circular footing
with a diameter of 2m in Clayey soil

The ultimate bearing capacity of a circular footing
with a diameter of 3m in Sandy soil

Settlement in footing if the total settlement of plate
is 5mm with footing diameter of 2.5m.

Answer #1

Plate load test is adopted globally to determine in-situ bearing
capacity of the subsoil and considered as one of the most important
field test for any big construction project. A plate load test was
conducted on a 300 mm side square plate at a depth of 1.10 m below
the ground level in pure clayey soil for an important construction
site. Failure of the soil occurred at a load of 45 kN. A. Calculate
the safe bearing capacity of a...

Determine the ultimate bearing capacity for a strip footing 0.7
m in width buried to a depth of 0.9 m in clay silt till with a unit
weight of 18.8 kN/m3 an internal friction of 25 degrees
and a cohesion of 58 kPa. Assume the water table is at the base of
the footing. Provide your answer in kPa as a whole number.

An Engineering consultant appointed on the construction of a
Bridge site decided to conduct the Plate load test to get fair idea
about the bearing capacity of the sub soil. The test was conducted
on a circular plate of 200 mm radius at a depth of 1.20 m below the
natural ground surface in pure clayey soil. The failure took place
at a load of 55000N. Calculate the safe bearing capacity of a 1.2 x
1.4 m rectangular footing founded...

A plate load test was carried out on a sand soil at the
expected foundation depth on a circular plate of 45 cm diameter.
Failure of the soil below plate occurred when the applied load on
plate reached 734 kg. If a square footing of 3 m width is going to
be constructed on the same soil and at the same testing depth, what
will be the allowable bearing capacity in kg/cm2. (Take
F.S = 3).

Which of the following assumption is not considered in
Terzaghi’s bearing capacity estimation?
(a) General shear failure occurs for shallow foundations
(b) Soil is homogeneous, isotropic, weightless and rigid-plastic
material
(c) Embedment depth is greater than width of the foundation
(d) Base of the footing is rough

Determine the depth at which a circular footing of (2+0.4Y) m
diameter be founded to provide a factor of safety of 3, if it has
to carry a safe load of (1500+10Y) kN. The foundation soil has a
cohesion of 10kN/m2, an angle of internal resistance of
(30 +Y)o. The water table is at the ground surface and
the unit weight of the soil is 19 kN/m3. Use Terzaghi’s
Analysis.
y=2

A circular pile 28m long has a diameter of 450 mm. It is
installed in CLAY with ɣ=18KN/m3 and C=
70KN/m2. Using factor of safety 5
Find: Allowable load bearing
capacity
What will be the total elastic Settlement of the pile if
the load carried by the pile point is 1/3 the total allowable load
carried by the
pile
ξ=0.5
Ep=18x106KN/m2
μ=0.6
Es=32000KN/m2

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