A 10 ft thick layer of silty clay underlain by a gravelly sand layer has the following properties: eg 0.94, Cc-0.3, Cs-0.03, saturated unit weight = 102 pcf, normally consolidated. A large area fill with a height of 4 ft and a bulk unit weight of 135 pcf will be placed over this layer. Additionally, a footing will also be supported by this clay layer. Note that the average stress increase at the midpoint of the clay layer caused by the footing load is 1050 psf. Assume there is no groundwater table in the soil profile What is the combined effective stress increase at the mipoint of the clay layer in psf (whole number)?
A 10 ft thick layer of silty clay underlain by a gravelly sand layer has the following properties: eg 0.94, Cc-0.3, Cs-0.03, saturated unit weight = 102 pcf, normally consolidated. A large area fill with a height of 4 ft and a bulk unit weight of 135 pcf will be placed over this layer. Additionally, a footing will also be supported by this clay layer. Note that the average stress increase at the midpoint of the clay layer caused by the footing load is 1050 psf. Assume there is no groundwater table in the soil profile What is the combined effective stress increase at the mipoint of the clay layer in psf (whole number)?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Soil mechanics
Transcribed Image Text:A 10 ft thick layer of silty clay underlain by a gravelly sand layer has the following properties:
en= 0.94, Cc=0.3, Cs=0.03, saturated unit weight = 102 pcf, normally consolidated. A large area
fill with a height of 4 ft and a bulk unit weight of 135 pcf will be placěd over this layer.
Additionally, a footing will also be supported by this clay layer. Note that the average stress
increase at the midpoint of the clay layer caused by the footing load is 1050 psf. Assume there
is no groundwater table in the soil profile.
What is the combined effective stress increase at the mipoint of the clay layer in psf (whole
number)?
Yanıt:
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