5. A layer of clay, at a depth below the groundwater surface, experiences a rapid increase in pressure of 200 kN/m evenly throughout the layer. A pistometer placed on a vertical increment in the clay mem shows the excess of the following pore water pressures, one year after the application of the load. Deep depth Peak Im 2 m 4 m 6m 8m Clay base 10 m clay layer (m) layer of clay Pressure advantage an air pori (kN/m2) 70 110 148 144 110 0 From a consolidation experiment, the coefficient of compression power m, obtained is 3.8 X 105 m?/kN. Using the relationship between the time factor T, and the degree of consolidation U, given, estimate the time required for consolidation to occur at 600 mm. Estimate the magnitude of the seepage coefficient of this clay.
5. A layer of clay, at a depth below the groundwater surface, experiences a rapid increase in pressure of 200 kN/m evenly throughout the layer. A pistometer placed on a vertical increment in the clay mem shows the excess of the following pore water pressures, one year after the application of the load. Deep depth Peak Im 2 m 4 m 6m 8m Clay base 10 m clay layer (m) layer of clay Pressure advantage an air pori (kN/m2) 70 110 148 144 110 0 From a consolidation experiment, the coefficient of compression power m, obtained is 3.8 X 105 m?/kN. Using the relationship between the time factor T, and the degree of consolidation U, given, estimate the time required for consolidation to occur at 600 mm. Estimate the magnitude of the seepage coefficient of this clay.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:5. A layer of clay, at a depth below the groundwater surface,
experiences a rapid increase in pressure of 200 kN/m?
evenly throughout the layer.
A pistometer placed on a vertical increment in the clay mem shows the
excess of the following pore water pressures, one year after the application
of the load.
Deep depth
Peak
Clay base
clay layer (m)
layer of clay
Im 2 m 4 m 6m
8m 10 m
Pressure advantage
an air pori
(kN/m2)
70
110 148 144 110 0
From a consolidation experiment, the coefficient of compression power m, obtained
is 3.8 X 105 m?/kN. Using the relationship between the time factor T, and the
degree of consolidation U, given, estimate the time required for consolidation to
occur at 600 mm. Estimate the magnitude of the seepage coefficient of this clay.
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