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Refer to the figure below. The site consists of 8 ft of sand overlying 4 ft...
In the figure below, the natural soil profile consists of sand overlying clay overlying sand overlying bedrock. A water...
In the figure below, the natural soil profile consists of sand
overlying clay overlying sand overlying bedrock. A
water table is present 1 m beneath the surface of the natural
ground. If 4 m of consistent fill material (γfill = 15
kN/m3) was placed on top of this soil profile that covered a
large area, determine:
(a) The consolidation settlement of the clay layer (using 4
equal layers in your calculation), and
(b) The time (in days) for this consolidation...
Net load Problem 1: With the foundation load of 500 kips given, determine: a) the average stress ...
net load Problem 1: With the foundation load of 500 kips given, determine: a) the average stress increase in the clay layer below the center of the foundation using m&n method Sand 4.5 Groundwater b) Consolidation settlement at Point A and Point B c) Differential Settlement 4 ftx4 ft table Sand sal d) The average degree of consolidation (U%) of Point A when the consolidation settlement is 0.5" ,-I 20 lb/ft3 C0.01 ft /day 10ftCe 0.25 e) Consolidation settlement (St)...
A laboratory consolidation test was performed on a specimen from the middle of the clay layer...
A laboratory consolidation test was performed on a specimen from the middle of the clay layer shown below, with the test results tabulated below. Determine pc, OCR, Cr field, and Ce field; include plots and supporting calculations. Pay attention to the units of stress ks Q-50 kips/ft 0.25 0.8869 0.5 0.8848 10.8768 2 0.8637 4 0.8364 80.7767 16 0.6796 80.6857 4 0.6948 2 0.7070 10.7212 0.7161 0.7079 0.6970 16 0.6600 0.5331 64 0.3766 B- 10 ft Sand oat-120 PC 10...
A laboratory consolidation test was performed on a specimen from the middle of the clay layer...
A laboratory consolidation test was performed on a specimen from the middle of the clay layer shown below, with the test results tabulated below. Determine pc, OCR, Cr field, and Ce field; include plots and supporting calculations. Pay attention to the units of stress ks Q-50 kips/ft 0.25 0.8869 0.5 0.8848 10.8768 2 0.8637 4 0.8364 80.7767 16 0.6796 80.6857 4 0.6948 2 0.7070 10.7212 0.7161 0.7079 0.6970 16 0.6600 0.5331 64 0.3766 B- 10 ft Sand oat-120 PC 10...
Show all work Thre foundations are constructed at the ground surface as shown in Figure 1....
Show all work
Thre foundations are constructed at the ground surface as shown in Figure 1. Calculate the settlement of the clay layer directly under point A at the center of the middle footing. Each large foundation carries a load of 3,200 kips and the small foundation carries a load of 1,200 kips. Note: Subdivide the clay layer into two 8-foot thick layers. Assume 1-D consolidation only. A-t20 Plan View 4' Sand; Ymoist 120 pcf Clay; Yvat-110 pcf, C.-0.25, Cr...
A circular tank of 6 m diameter is to be constructed at a site with the...
A circular tank of 6 m diameter is to be constructed at a site with the soil profile (2 m sand overlying 4 m clay) shown in Figure 3 below. The water table is 2 m below the surface (i.e. at the sand-clay interface). The circular tank will apply a loading of 200 kN/m2 Circular tank - (z = 0 m) Sand (z 2 m) Pt A (z 3 m) Clay (z 4 m) Pt B (z 5 m) (z...
1. (25 points) The soil profile at a site consists of a layer of fine sand...
1. (25 points) The soil profile at a site consists of a layer of fine sand 5 m thick above a layer of clay 4 m thick. Below the clay is a layer of impermeable rock. The groundwater table was observed at 2 m below ground level. The unit weight of the sand above and below the water table is 20 KN/m'. The water content of the clay is 25% and its dry unit weight is 15 KN/m'. The compression...
Homework #10 A soil exploration result of a site is shown in the following figure. A...
Homework #10 A soil exploration result of a site is shown in the following figure. A building is to be constructed at that site. First, it has been proposed to raise the elevation of the ground by filling the site with 10 ft thick compacted soil at an area of 25 ft x 25 ft. The unit weight of the compacted moist soil was 120 pcf. The foundation of proposed building was constructed at the center of the compaction area...
X=22 QUESTION 3 (30 marks) A soil profile at a site is shown in Figure 1....
X=22
QUESTION 3 (30 marks) A soil profile at a site is shown in Figure 1. A soil specimen is taken from the middle of the clay layer and subjected to a consolidation test, and following properties are reported. • Moisture content of clay = 15% • Specific gravity of soil grains = 2.7 OCR=3.0 • Compression Index (Cc)=0.5 • Recompression Index (Cr)=0.04 a) Calculate the effective vertical stress at the middle of the clay layer (10 marks) b) Calculate...
The figure below shows a flexible rectangular raft foundation that is proposed for one of the...
The figure below shows a flexible rectangular raft foundation
that is proposed for one of the industrial buildings at the site.
The foundation is 10 feet X 20 feet and applies an uniform pressure
of 3000 psf to the underlying soil.
a. Using the influence factor method to calculate the stress
below a rectangular area, find the vertical stress increase
()
at 6 feet below points A, B, and C.
b. Assume that this foundation (thickness = 1.25 feet,
Ef...
In the figure below, the natural soil profile consists of sand
overlying clay overlying sand overlying bedrock. A
water table is present 1 m beneath the surface of the natural
ground. If 4 m of consistent fill material (γfill = 15
kN/m3) was placed on top of this soil profile that covered a
large area, determine:
(a) The consolidation settlement of the clay layer (using 4
equal layers in your calculation), and
(b) The time (in days) for this consolidation...
net load Problem 1: With the foundation load of 500 kips given, determine: a) the average stress increase in the clay layer below the center of the foundation using m&n method Sand 4.5 Groundwater b) Consolidation settlement at Point A and Point B c) Differential Settlement 4 ftx4 ft table Sand sal d) The average degree of consolidation (U%) of Point A when the consolidation settlement is 0.5" ,-I 20 lb/ft3 C0.01 ft /day 10ftCe 0.25 e) Consolidation settlement (St)...
A laboratory consolidation test was performed on a specimen from the middle of the clay layer shown below, with the test results tabulated below. Determine pc, OCR, Cr field, and Ce field; include plots and supporting calculations. Pay attention to the units of stress ks Q-50 kips/ft 0.25 0.8869 0.5 0.8848 10.8768 2 0.8637 4 0.8364 80.7767 16 0.6796 80.6857 4 0.6948 2 0.7070 10.7212 0.7161 0.7079 0.6970 16 0.6600 0.5331 64 0.3766 B- 10 ft Sand oat-120 PC 10...
A laboratory consolidation test was performed on a specimen from the middle of the clay layer shown below, with the test results tabulated below. Determine pc, OCR, Cr field, and Ce field; include plots and supporting calculations. Pay attention to the units of stress ks Q-50 kips/ft 0.25 0.8869 0.5 0.8848 10.8768 2 0.8637 4 0.8364 80.7767 16 0.6796 80.6857 4 0.6948 2 0.7070 10.7212 0.7161 0.7079 0.6970 16 0.6600 0.5331 64 0.3766 B- 10 ft Sand oat-120 PC 10...
Show all work
Thre foundations are constructed at the ground surface as shown in Figure 1. Calculate the settlement of the clay layer directly under point A at the center of the middle footing. Each large foundation carries a load of 3,200 kips and the small foundation carries a load of 1,200 kips. Note: Subdivide the clay layer into two 8-foot thick layers. Assume 1-D consolidation only. A-t20 Plan View 4' Sand; Ymoist 120 pcf Clay; Yvat-110 pcf, C.-0.25, Cr...
A circular tank of 6 m diameter is to be constructed at a site with the soil profile (2 m sand overlying 4 m clay) shown in Figure 3 below. The water table is 2 m below the surface (i.e. at the sand-clay interface). The circular tank will apply a loading of 200 kN/m2 Circular tank - (z = 0 m) Sand (z 2 m) Pt A (z 3 m) Clay (z 4 m) Pt B (z 5 m) (z...
1. (25 points) The soil profile at a site consists of a layer of fine sand 5 m thick above a layer of clay 4 m thick. Below the clay is a layer of impermeable rock. The groundwater table was observed at 2 m below ground level. The unit weight of the sand above and below the water table is 20 KN/m'. The water content of the clay is 25% and its dry unit weight is 15 KN/m'. The compression...
Homework #10 A soil exploration result of a site is shown in the following figure. A building is to be constructed at that site. First, it has been proposed to raise the elevation of the ground by filling the site with 10 ft thick compacted soil at an area of 25 ft x 25 ft. The unit weight of the compacted moist soil was 120 pcf. The foundation of proposed building was constructed at the center of the compaction area...
X=22
QUESTION 3 (30 marks) A soil profile at a site is shown in Figure 1. A soil specimen is taken from the middle of the clay layer and subjected to a consolidation test, and following properties are reported. • Moisture content of clay = 15% • Specific gravity of soil grains = 2.7 OCR=3.0 • Compression Index (Cc)=0.5 • Recompression Index (Cr)=0.04 a) Calculate the effective vertical stress at the middle of the clay layer (10 marks) b) Calculate...
The figure below shows a flexible rectangular raft foundation
that is proposed for one of the industrial buildings at the site.
The foundation is 10 feet X 20 feet and applies an uniform pressure
of 3000 psf to the underlying soil.
a. Using the influence factor method to calculate the stress
below a rectangular area, find the vertical stress increase
()
at 6 feet below points A, B, and C.
b. Assume that this foundation (thickness = 1.25 feet,
Ef...
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