4. A square foundation will be constructed at ground surface. The subsoil profile is shown in the figure below. The mat will have a net uniform load of 500 psf at El. 0. The mat will have a net uniform load (Induce stress) at El. -15 of 360 psf, the primary consolidation settlement (in.) of the clay layer directly below the center of the foudnation is? ORIGINAL GROUND SURFACE ELEV. Oft ELEV-5 ft ELEV-10 ft ELEV-20 ft ::. 30 ft SAND Y = 115 pcf MAT FOUNDATION SAND /1/1 NORMALLY CONSOLIDATED CLAY SATURATED UNIT WEIGHT = 95 pcf COMPRESSION INDEX C₂ = 0.29 VOID RATIO = 1.0 ;. Y = 105 pcf 7 GROUNDWATER TABLE
4. A square foundation will be constructed at ground surface. The subsoil profile is shown in the figure below. The mat will have a net uniform load of 500 psf at El. 0. The mat will have a net uniform load (Induce stress) at El. -15 of 360 psf, the primary consolidation settlement (in.) of the clay layer directly below the center of the foudnation is? ORIGINAL GROUND SURFACE ELEV. Oft ELEV-5 ft ELEV-10 ft ELEV-20 ft ::. 30 ft SAND Y = 115 pcf MAT FOUNDATION SAND /1/1 NORMALLY CONSOLIDATED CLAY SATURATED UNIT WEIGHT = 95 pcf COMPRESSION INDEX C₂ = 0.29 VOID RATIO = 1.0 ;. Y = 105 pcf 7 GROUNDWATER TABLE
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Answer 4 then use the answer from 4 to answer 5
Transcribed Image Text:5. Using the paramters provided in Question 4, assume only vertical drainage and that the
coefficient of consolidation is 2.2 x 10^-4 in^2/sec, the time (months) required to achieve 50%
primary consolidation is most nearly.
Transcribed Image Text:4. A square foundation will be constructed at ground surface. The subsoil profile is shown in the
figure below. The mat will have a net uniform load of 500 psf at El. O. The mat will have a net
uniform load (Induce stress) at El. -15 of 360 psf, the primary consolidation settlement (in.) of
the clay layer directly below the center of the foudnation is?
fr
ORIGINAL GROUND
SURFACE ELEV. O ft
ELEV-5 ft.
ELEV-10 ft
ELEV-20 ft
30 ft
SAND
Y = 115 pcf
MAT FOUNDATION
SAND
Y = 105 pcf
GROUNDWATER TABLE
NORMALLY CONSOLIDATED CLAY
SATURATED UNIT WEIGHT = 95 pcf
COMPRESSION INDEX C₂ = 0.29
VOID RATIO=1.0
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