Homework Answers
Add Answer to:
Show all work 20-ft thick fill is planned to be placed at a construction site. Ground settlement is of concern due...
6. (former exam question) A large granular free draining fill 6-ft thick was placed on a...
6. (former exam question) A large granular free draining fill 6-ft thick was placed on a 15-ft thick layer of clay as shown in the figure below. A piezometer was installed at the midpoint of the clay layer. The water table is at the original ground surface. Three years after the placement of the fill, the piezometer reads 7.63 ft above the ground water level. Answer the following questions: a. What percentage of the total consolidation for the entire clay...
The ground profile of a construction site consists of a 3 m thick layer of sand...
The ground profile of a construction site consists of a 3 m thick layer of sand followed by a 2 m thick layer of clay lying on impervious bedrock. The watertable is at a depth of 2 m below the ground surface. The sand has a dry unit weight of 16 kN/m and a saturated unit weight of 18 kN/m3. The capillary rise in sand is 0.5 m. The clay has a bulk unit weight of 19 kN/m 1. One...
For the soil profile shown below, calculate the final settlement due to the placement of the...
For the soil profile shown below, calculate the final settlement due to the placement of the sand fill. Estimate the excess pore pressure at a depth of 1.5 m into the third clay layer 1.5 years after the fill is placed. Assume the coefficient of consolidation is Cv = 1.8 m2/yr. Fill y = 16.0 kN/m² (3m thick) Clay 1 (3m thick) Sand (0.5m thick) Clay 2 (2m thick) Sand (0.5m thick) Clay 3 (4m thick) Sand (0.5m thick) eo...
2) You are given the soil deposit shown below. Assume c,-0.1 ftiday and c0.1 ftday. You...
2) You are given the soil deposit shown below. Assume c,-0.1 ftiday and c0.1 ftday. You have previously calculated that the total ultimate settlement of the clay layer will be 131 ft and it will take 1,908 days to achieve an average degrec of consolidation of 90%. Consider these two options for OPTION : SURCHARGE If you want to accelerate settiement such that an average degree of consolidation of 90% would be achieved in 2 years, how much surcharge would...
The ground profile of a construction site consists of a 3 m thick layer of sand...
The ground profile of a construction site consists of a 3 m thick layer of sand followed by a 2 m thick layer of clay lying on impervious bedrock. The water table is at a depth of 2 m below the ground surface. The sand has a dry unit weight of 16 kN/m3 and a saturated unit weight of 18 kN/m3. The capillary rise in the sand is 0.5 m. The clay has a bulk unit weight of 19 kN/m3....
You are evaluating the geotechnical characteristics of a Miami site for a proposed office buildin...
You are evaluating the geotechnical characteristics of a Miami site for a proposed office building. Subsurface investigation showed that the site consists of the following layers: (1) a 5-ft sandy laver with a unit weight of 100 pcf (2) a 10-ft silty sand layer with a saturated unit weight of 115 pcf. (3) a 20-ft saturated clay layer with a unit weight of 118 pef, void ratio of 0.85, and underlain by gravels. The site seemed to have strong potential...
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...
Example 2:3 The soil profile at a site consists of a 3 m thick sand layer...
Example 2:3 The soil profile at a site consists of a 3 m thick sand layer (Ybulk -16.5 kN/m3 sat18.5 kN/m3) underlain by a 6 m thick clay layer (w-27%, Gs-270, m,-0.31 MPa", cv-2.6 m2/year), which is underlain by a gravel layer. A 3 m compacted fill with a unit weight of 20 kN/m3 is to be placed at ground level. a. What would be the final consolidation settlement? b. How long will it take for 50 mm of consolidation...
A 2-m thick of compacted soil of unit weight 20 kN/m3 will be placed on the top of the ground surface. Δσ y...
A 2-m thick of compacted soil of unit weight 20 kN/m3 will be placed on the top of the ground surface. Δσ y 14.0 kN/m3 3.0 m Sand Y 17.5 kN/m3 2.0 m 3.0m A Soft clay y= 13.5 kN/m3 6.0 m Medium clay y=15.0 kN/m3 B 4.0 m Bedrock a) Before placing the compacted soil, what are the overconsolidation ratios (OCR) for point A and B? b) When placing the compacted soil, what external load Ag would be? c)...
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...
6. (former exam question) A large granular free draining fill 6-ft thick was placed on a 15-ft thick layer of clay as shown in the figure below. A piezometer was installed at the midpoint of the clay layer. The water table is at the original ground surface. Three years after the placement of the fill, the piezometer reads 7.63 ft above the ground water level. Answer the following questions: a. What percentage of the total consolidation for the entire clay...
The ground profile of a construction site consists of a 3 m thick layer of sand followed by a 2 m thick layer of clay lying on impervious bedrock. The watertable is at a depth of 2 m below the ground surface. The sand has a dry unit weight of 16 kN/m and a saturated unit weight of 18 kN/m3. The capillary rise in sand is 0.5 m. The clay has a bulk unit weight of 19 kN/m 1. One...
For the soil profile shown below, calculate the final settlement due to the placement of the sand fill. Estimate the excess pore pressure at a depth of 1.5 m into the third clay layer 1.5 years after the fill is placed. Assume the coefficient of consolidation is Cv = 1.8 m2/yr. Fill y = 16.0 kN/m² (3m thick) Clay 1 (3m thick) Sand (0.5m thick) Clay 2 (2m thick) Sand (0.5m thick) Clay 3 (4m thick) Sand (0.5m thick) eo...
2) You are given the soil deposit shown below. Assume c,-0.1 ftiday and c0.1 ftday. You have previously calculated that the total ultimate settlement of the clay layer will be 131 ft and it will take 1,908 days to achieve an average degrec of consolidation of 90%. Consider these two options for OPTION : SURCHARGE If you want to accelerate settiement such that an average degree of consolidation of 90% would be achieved in 2 years, how much surcharge would...
You are evaluating the geotechnical characteristics of a Miami site for a proposed office building. Subsurface investigation showed that the site consists of the following layers: (1) a 5-ft sandy laver with a unit weight of 100 pcf (2) a 10-ft silty sand layer with a saturated unit weight of 115 pcf. (3) a 20-ft saturated clay layer with a unit weight of 118 pef, void ratio of 0.85, and underlain by gravels. The site seemed to have strong potential...
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...
Example 2:3 The soil profile at a site consists of a 3 m thick sand layer (Ybulk -16.5 kN/m3 sat18.5 kN/m3) underlain by a 6 m thick clay layer (w-27%, Gs-270, m,-0.31 MPa", cv-2.6 m2/year), which is underlain by a gravel layer. A 3 m compacted fill with a unit weight of 20 kN/m3 is to be placed at ground level. a. What would be the final consolidation settlement? b. How long will it take for 50 mm of consolidation...
A 2-m thick of compacted soil of unit weight 20 kN/m3 will be placed on the top of the ground surface. Δσ y 14.0 kN/m3 3.0 m Sand Y 17.5 kN/m3 2.0 m 3.0m A Soft clay y= 13.5 kN/m3 6.0 m Medium clay y=15.0 kN/m3 B 4.0 m Bedrock a) Before placing the compacted soil, what are the overconsolidation ratios (OCR) for point A and B? b) When placing the compacted soil, what external load Ag would be? c)...
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...
Most questions answered within 3 hours.
-
The differences between the two sets of dependent data are -1,
2,-,2, 2. Round to the...
asked 10 minutes ago -
A χ2-curve, looking at the relationship between age and hours
spent working at an office per...
asked 41 minutes ago -
The pH of a sample of water from a river is 5.0. A
sample of effluent from...
asked 1 hour ago -
At the beginning of the period, the Fabricating Department
budgeted direct labor of $136,500 and equipment...
asked 1 hour ago -
Please answer all
____ 28. Rent control is usually
justified on the grounds that it protects...
asked 1 hour ago -
PARTS A-D HAVE BEEN ANSWERED. WAS TOLD TO REPOST. ONLY ANSWER
PARTS E and F.
A...
asked 2 hours ago -
2) You are given the task of finding a representation for a
circle in a drawing...
asked 3 hours ago -
STUDY QUESTION: Does use of diet drug fen-phen
(fenfluramine-phentermine) cause valvular heart disease?
HINT: Valvular heart...
asked 3 hours ago -
1. An object weighing 40 N rests on a surface. The coefficient
of friction is 0.35....
asked 4 hours ago -
Investor company owns 35% of investee company voting stock and
accounts for the investment under the...
asked 5 hours ago -
The number of major faults on a randomly chosen 1 km stretch of
highway has a...
asked 5 hours ago -
Consider the competitive environment of Starbuck's, Progressive
Insurance, a manufacturing firm with low turnover, or a...
asked 6 hours ago