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Geotechnical engineering 2
Q3. A double drained clay layer of 3.5 m thickness is subjected to...
For a normally consolidated clay layer, given: Thickness-3.7 m Void ratio- 0.82 Liquid limit 42 Average...
For a normally consolidated clay layer, given: Thickness-3.7 m Void ratio- 0.82 Liquid limit 42 Average effective stress on the clay layer 110 kN/m2 How much consolidation settlement would the clay undergo if the average effective stress on the clay layer is increased to 155 kN/m as the result of the construction of a foundation?
geotechnical engineering The soil profile at a site consists of a clay layer 10 m thick,...
geotechnical engineering
The soil profile at a site consists of a clay layer 10 m thick, sandwich between two sand layers. The top sand layer has a density of 1.9 Mg/m² and is 5 m thick. Below this layer is a 10 m thick clay layer with a saturated density of 1.8 Mg/m' and a saturated water content 42%. The deeper sand layer has a saturated density of 1.9 Mg/m² and extend to the depth investigated at the site. The...
The time for 50% consolidation of a 25 mm thick clay specimen (drained at top and bottom) in the laboratory is 1...
The time for 50% consolidation of a 25 mm thick clay specimen (drained at top and bottom) in the laboratory is 150 sec. How long (in days) will it take for a 3 m thick layer of the same clay in the field under the same pressure increment to reach 75% consolidation? There is an impermeable shale layer at the bottom of the clay layer in the field I. 2. Use Figure 1 for the following Compute the vertical effective...
help with problems 1 & 2 please and explain Problem 1 A deposit of Swedish clay...
help with problems 1 & 2 please and explain
Problem 1 A deposit of Swedish clay is 15 m thick drained at both top and bottom. The coefficient of consolidation for the clay layer was estimated to be 1 x 10 cm/sec from laboratory test. The ultimate consolidation settlement (Sc) was calculated under the applied load in the field and was found 80 cm. Find the following: a) How long would it take for settlement of 40 cm and 70...
1. An 8-m thick normally consolidated clay layer is doubly drained as shown below. (This means...
1. An 8-m thick normally consolidated clay layer is doubly drained as shown below. (This means that a very pervious layer compared to the clay exists on top of and under the clay layer) The embankment applied an average vertical stress increase of 100 kPa to the clay layer. The water table is located at the mid depth of the sand layer. Assume the sand above the water table is dry 0 Pore water pressure, u (kPa) 20 40 60...
solve Question 8. please show steps [Problems 7-8] A 12 m thick layer of Omaha clay...
solve Question 8. please show steps
[Problems 7-8] A 12 m thick layer of Omaha clay is double drained. (This means that a very pervious layer compared to the clay exists on top of and under the 12 m clay layer). The coefficient of consolidation is Cy = 8.0 x 10-8 m²/s. Problem 7. Estimate the degree of consolidation for the clay layer 5 years after loading at the depth of 6 m. (1) 32% (2) 46% (3) 61% (4)...
QO vreme (b/n) (6) 3. A 40 ft layer of silty clay is overlain by 5ft...
QO vreme (b/n) (6) 3. A 40 ft layer of silty clay is overlain by 5ft of 1000 2000 3000 4000 sand. The base of the clay layer lies over an impervious siltstone bedrock. Water table is at ground surface and is hydrostatic in the clay layer. The initial vertical effective stress do'and maximum past pressure profiles with depth are plotted in the Figure to the right. Initial void ratio e, -0.95. One- dimensional consolidation test results yielded the following:...
g=9.81m/s^2 When it say "preconsolidated under vertical effective stress of 130 kPa", this means that the...
g=9.81m/s^2
When it say "preconsolidated under vertical effective stress of
130 kPa", this means that the preconsolidation pressure at the
centre of the clay layer is 130 kPa, NOT that 130 kPa was applied
as a surcharge at the surface.
In the following questions, you do not need to divide the clay layer into multiple layers to calculate the consolidation settlement. Asume the clay to be only one layer q 50 kN/m2 3.0 m dry WT Sand: Ysat 1k -17...
Could someone please help with this problem parts a-f 2. Use Figure 1 and Table 1...
Could someone
please help with this problem parts a-f
2. Use Figure 1 and Table 1 for the following a) Compute the vertical effective stress (o) in kN/m2 at the center of the clay layer prior to the construction of the footing. [Note: To compute c., you will first have to use the weight-volume relationships to compute the unit weight of the clay.] b) Assuming B 15 m, L 2.5 m, and Q-120 kN, use the Boussinesq procedure to determine...
i only need help with Q3 CEE 216 Civil Engineering Materials Steel 1. A 32-mm rebar...
i only need help with Q3
CEE 216 Civil Engineering Materials Steel 1. A 32-mm rebar with a gauge length of 200 mm was subjected to tension to fracture according to ASTM E-8 method. The load and deformation data collected are shown in Table 1. Create a spreadsheet to complete the following. Table 1. Load and displacement data for a 32-mm rebar sample subjected to an increasing tensile load a. Create a plot of stress-strain. Label the axes and show...
For a normally consolidated clay layer, given: Thickness-3.7 m Void ratio- 0.82 Liquid limit 42 Average effective stress on the clay layer 110 kN/m2 How much consolidation settlement would the clay undergo if the average effective stress on the clay layer is increased to 155 kN/m as the result of the construction of a foundation?
geotechnical engineering
The soil profile at a site consists of a clay layer 10 m thick, sandwich between two sand layers. The top sand layer has a density of 1.9 Mg/m² and is 5 m thick. Below this layer is a 10 m thick clay layer with a saturated density of 1.8 Mg/m' and a saturated water content 42%. The deeper sand layer has a saturated density of 1.9 Mg/m² and extend to the depth investigated at the site. The...
The time for 50% consolidation of a 25 mm thick clay specimen (drained at top and bottom) in the laboratory is 150 sec. How long (in days) will it take for a 3 m thick layer of the same clay in the field under the same pressure increment to reach 75% consolidation? There is an impermeable shale layer at the bottom of the clay layer in the field I. 2. Use Figure 1 for the following Compute the vertical effective...
help with problems 1 & 2 please and explain
Problem 1 A deposit of Swedish clay is 15 m thick drained at both top and bottom. The coefficient of consolidation for the clay layer was estimated to be 1 x 10 cm/sec from laboratory test. The ultimate consolidation settlement (Sc) was calculated under the applied load in the field and was found 80 cm. Find the following: a) How long would it take for settlement of 40 cm and 70...
1. An 8-m thick normally consolidated clay layer is doubly drained as shown below. (This means that a very pervious layer compared to the clay exists on top of and under the clay layer) The embankment applied an average vertical stress increase of 100 kPa to the clay layer. The water table is located at the mid depth of the sand layer. Assume the sand above the water table is dry 0 Pore water pressure, u (kPa) 20 40 60...
solve Question 8. please show steps
[Problems 7-8] A 12 m thick layer of Omaha clay is double drained. (This means that a very pervious layer compared to the clay exists on top of and under the 12 m clay layer). The coefficient of consolidation is Cy = 8.0 x 10-8 m²/s. Problem 7. Estimate the degree of consolidation for the clay layer 5 years after loading at the depth of 6 m. (1) 32% (2) 46% (3) 61% (4)...
QO vreme (b/n) (6) 3. A 40 ft layer of silty clay is overlain by 5ft of 1000 2000 3000 4000 sand. The base of the clay layer lies over an impervious siltstone bedrock. Water table is at ground surface and is hydrostatic in the clay layer. The initial vertical effective stress do'and maximum past pressure profiles with depth are plotted in the Figure to the right. Initial void ratio e, -0.95. One- dimensional consolidation test results yielded the following:...
g=9.81m/s^2
When it say "preconsolidated under vertical effective stress of
130 kPa", this means that the preconsolidation pressure at the
centre of the clay layer is 130 kPa, NOT that 130 kPa was applied
as a surcharge at the surface.
In the following questions, you do not need to divide the clay layer into multiple layers to calculate the consolidation settlement. Asume the clay to be only one layer q 50 kN/m2 3.0 m dry WT Sand: Ysat 1k -17...
Could someone
please help with this problem parts a-f
2. Use Figure 1 and Table 1 for the following a) Compute the vertical effective stress (o) in kN/m2 at the center of the clay layer prior to the construction of the footing. [Note: To compute c., you will first have to use the weight-volume relationships to compute the unit weight of the clay.] b) Assuming B 15 m, L 2.5 m, and Q-120 kN, use the Boussinesq procedure to determine...
i only need help with Q3
CEE 216 Civil Engineering Materials Steel 1. A 32-mm rebar with a gauge length of 200 mm was subjected to tension to fracture according to ASTM E-8 method. The load and deformation data collected are shown in Table 1. Create a spreadsheet to complete the following. Table 1. Load and displacement data for a 32-mm rebar sample subjected to an increasing tensile load a. Create a plot of stress-strain. Label the axes and show...
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