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A, B and C. Assume (a) For the soil profile shown below, determine the effective stress...
Q2. A borehole at a site reveals the soil profile shown in Figure 2. Plot the...
Q2. A borehole at a site reveals the soil profile shown in Figure 2. Plot the distribution of vertical total and effective stresses with depth. Assume pore air pressure is zero and the pore-water pressure due to capillarity is negative as shown in Figure 3 Elevation (m) Very fine wet sand with silt w=596, S = 40% Fine sand saturated by capillary action Fine sand, 12% 2.0 5.4 Soft blue clay, w= 28% 20.6 Figure 2 Soil Porewater pressure distribution
Problem 1 Ground Surface A soil profile is shown to the right. The groundwater table is...
Problem 1 Ground Surface A soil profile is shown to the right. The groundwater table is located 15 feet below ground. Calculate the total stress, pore water pressure and effective stress in the vertical and horizontal direction at points a, b, and c located Coarse Sand -120 lb/ft Ko 0.4 %at: 125 lb/ft3 a) 15, b) 40, and c) 58 feet below the ground surface. Stiff Clay = 110 lb/ft3 %at 115 lb/ft3 Ko= 1.3 58 Limestone Bedrock
Question 5 (Effective Stress & Consolidation) Figure 05 shows the soil profile of a construction site....
Question 5 (Effective Stress & Consolidation) Figure 05 shows the soil profile of a construction site. The water table is at the ground surface. Saturated unit weight of the sand is 18.8kN/m' and that of the clay is 19.6kN/m. Assume permeability of the clay is very low and unit weight of water is 10kN/m'. Water Table Sand 5m Clay 6m Figure 05 a) Determine the vertical total stress, pore water pressure, and vertical effective stress at the mid-height of the...
4.Refer to the soil profile shown in Figure Question 1 (a) Determine the total stress, pore...
4.Refer to the soil profile shown in Figure Question 1 (a) Determine the total stress, pore water pressure, and effective stress at A, B, C, and D (b) If during the spring the water table rises above the ground surface by 15m calculate the effective stress at point D Dry sand;eo.55 G,-266 B Water table 3 m 1.5 mSand G,-2.66e 0.48 Clay w-34.78% G+ 2.74 5 m Figure Question 4
3. A soil profile shown below. The uniformly distributed load on the ground surface is Do....
3. A soil profile shown below. The uniformly distributed load on the ground surface is Do. Estimate the primary settlement of the normally consolidated clay layer, given that H-6ft, H2 - 10 ft, Hz - 4ft For sand, Ydry = 113 lb/ft'Ysat = 188.7 lb/ft? For clay, Ysat - 186.4 lb/ft. e=0.85, LL = 55 Ao'-2,000 lb/ft? -0.0003 in /sec 140' Dry sand Satiiruted sand Primary Settlement, Sc of Normally Consolidated clay - If the clay above was overconsolidated, what...
3. Shear Strength a. Plot the effective stress Mohr-Coulomb failure envelope for a soil with c'-500...
3. Shear Strength a. Plot the effective stress Mohr-Coulomb failure envelope for a soil with c'-500 b. A plane through a sample of this soil has an effective normal stress of c. Use a Mohr circle that touches the failure enve psf and 32 deg. acting on it. What is the shear strength of the soil on that plane? of 2000 psf to estimate the values of σ, and σ, at a state of shear failure 2000 psf lope at...
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...
3) (a) Plot the vertical effective stress with depth along section A-B Figure 2. (b) If...
3) (a) Plot the vertical effective stress with depth along section A-B Figure 2. (b) If the river level were to rise by 2 ft, would the vertical effective stress distribution change? Explain your answer. (c) If the river level were to drop by 2 ft, how much would the vertical effective stress at B change? River 8tt iver bed Soft clay 20ft | T 105-pcf Sand Yat 110 pctf
With reference to the soil profile shown below, answer the following questions Y=122 pcf, O'= 5°...
With reference to the soil
profile shown below, answer the following questions
Y=122 pcf, O'= 5° 10 ft Yat-110 pcf, 0 = 10° 10 ft 10 A Ya 113 pcf, 0 = 15° Bedrock A) What is the pore water pressure at Point B? (5 points) B) What is the total stress at Point B? (5 points) C) What is the effective stress at Point A? (5 points) D) What is the shear strength at Point A? (5 points)
Q3 (35) A soil profile is shown in figure below. Calculate total stess, pore water pressure...
Q3 (35) A soil profile is shown in figure below. Calculate total stess, pore water pressure and effective stres at B, C, and D. Take unit weight of water 10 kN/m. Water level rise up 1.6om from the inital level. Caloulate change in effective stress at points D. 1.8 m and G 16.3 16 m Clay 29
Q2. A borehole at a site reveals the soil profile shown in Figure 2. Plot the distribution of vertical total and effective stresses with depth. Assume pore air pressure is zero and the pore-water pressure due to capillarity is negative as shown in Figure 3 Elevation (m) Very fine wet sand with silt w=596, S = 40% Fine sand saturated by capillary action Fine sand, 12% 2.0 5.4 Soft blue clay, w= 28% 20.6 Figure 2 Soil Porewater pressure distribution
Problem 1 Ground Surface A soil profile is shown to the right. The groundwater table is located 15 feet below ground. Calculate the total stress, pore water pressure and effective stress in the vertical and horizontal direction at points a, b, and c located Coarse Sand -120 lb/ft Ko 0.4 %at: 125 lb/ft3 a) 15, b) 40, and c) 58 feet below the ground surface. Stiff Clay = 110 lb/ft3 %at 115 lb/ft3 Ko= 1.3 58 Limestone Bedrock
Question 5 (Effective Stress & Consolidation) Figure 05 shows the soil profile of a construction site. The water table is at the ground surface. Saturated unit weight of the sand is 18.8kN/m' and that of the clay is 19.6kN/m. Assume permeability of the clay is very low and unit weight of water is 10kN/m'. Water Table Sand 5m Clay 6m Figure 05 a) Determine the vertical total stress, pore water pressure, and vertical effective stress at the mid-height of the...
4.Refer to the soil profile shown in Figure Question 1 (a) Determine the total stress, pore water pressure, and effective stress at A, B, C, and D (b) If during the spring the water table rises above the ground surface by 15m calculate the effective stress at point D Dry sand;eo.55 G,-266 B Water table 3 m 1.5 mSand G,-2.66e 0.48 Clay w-34.78% G+ 2.74 5 m Figure Question 4
3. A soil profile shown below. The uniformly distributed load on the ground surface is Do. Estimate the primary settlement of the normally consolidated clay layer, given that H-6ft, H2 - 10 ft, Hz - 4ft For sand, Ydry = 113 lb/ft'Ysat = 188.7 lb/ft? For clay, Ysat - 186.4 lb/ft. e=0.85, LL = 55 Ao'-2,000 lb/ft? -0.0003 in /sec 140' Dry sand Satiiruted sand Primary Settlement, Sc of Normally Consolidated clay - If the clay above was overconsolidated, what...
3. Shear Strength a. Plot the effective stress Mohr-Coulomb failure envelope for a soil with c'-500 b. A plane through a sample of this soil has an effective normal stress of c. Use a Mohr circle that touches the failure enve psf and 32 deg. acting on it. What is the shear strength of the soil on that plane? of 2000 psf to estimate the values of σ, and σ, at a state of shear failure 2000 psf lope at...
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...
3) (a) Plot the vertical effective stress with depth along section A-B Figure 2. (b) If the river level were to rise by 2 ft, would the vertical effective stress distribution change? Explain your answer. (c) If the river level were to drop by 2 ft, how much would the vertical effective stress at B change? River 8tt iver bed Soft clay 20ft | T 105-pcf Sand Yat 110 pctf
With reference to the soil
profile shown below, answer the following questions
Y=122 pcf, O'= 5° 10 ft Yat-110 pcf, 0 = 10° 10 ft 10 A Ya 113 pcf, 0 = 15° Bedrock A) What is the pore water pressure at Point B? (5 points) B) What is the total stress at Point B? (5 points) C) What is the effective stress at Point A? (5 points) D) What is the shear strength at Point A? (5 points)
Q3 (35) A soil profile is shown in figure below. Calculate total stess, pore water pressure and effective stres at B, C, and D. Take unit weight of water 10 kN/m. Water level rise up 1.6om from the inital level. Caloulate change in effective stress at points D. 1.8 m and G 16.3 16 m Clay 29
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