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5. A rectangular foundation of 4m x 6m (as shown in Figure 5) transmits a stress...
A rectangular foundation of 4m x 6m (as shown in Figure 5) transmits a stress of 150 kPa on the surface of a soil depos...
A rectangular foundation of 4m x 6m (as shown in Figure 5) transmits a stress of 150 kPa on the surface of a soil deposit. Plot the distribution of induced vertical stresses with depth under points A (the centre of the rectangle) and B up to a depth of 20 m 5. 4m 2m C 2m Figure 5
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...
A load of 1863 kN is carried on a 1.5 by 2 m rectangular foundation at...
A load of 1863 kN is carried on a 1.5 by 2 m rectangular foundation at a shallow depth in a soil mass. Determine the vertical stress at the centre of the footing 4 m below the footing underside assuming: (a) the load is uniformly distributed over the pad and, (b) the load acts as a point load at the centre of the foundation.
3. The plan and anticipated loading of a proposed building foundation are shown in the Figure...
3. The plan and anticipated loading of a proposed building foundation are shown in the Figure below. Estimate the applied vertical stress ΔσΖ at 5 m below point A. Hint: the stresses at A due to the smaller 10 x 15 m rectangle with 500 kPa is equal to the stresses due to a larger 10 x 25m rectangle with 500 kPa and corner at A MINUS another 10 x 10 rectangle with 500 kPa also with corner at A....
2. The concrete mat foundation shown in figure below is subject to uniform loadings of 200...
2. The concrete mat foundation shown in figure below is subject to uniform loadings of 200 kPa and 150 kPa on the shaded and the unshaded areas respectively. Compute the intensity of vertical stress at depths 3m, and 6m below the point A. 40 260 N/ 150 kN/m 4.0 m
A rectangular concrete slab, 10ft x 15ft (figure below), rests on the surface of a soil...
A rectangular concrete slab, 10ft x 15ft (figure below), rests on the surface of a soil mass. The load on the slab is 450kips. Determine the vertical stress increase at a depth of 10ft (a) under the center of the slab, point A; (b) under point B 15 tt Plan Section
Consider the raft foundation shown in Figure Q1 Dense soil ?-320 c-0 Raft Foundation q 700kPa...
Consider the raft foundation shown in Figure Q1 Dense soil ?-320 c-0 Raft Foundation q 700kPa 8m -o 8m Dense soil ?=32° c- 0 sa 18kN/m Plan Section Figure Q1 Compute 5 marks] [5 marks i. Change in Stress in the centre of raft at a depth of 5m from ground. ii. Allowable Bearing capacity.
Question 1: 10 marks Consider the raft foundation shown in Figure Q1 Dense soil ? 320...
Question 1: 10 marks Consider the raft foundation shown in Figure Q1 Dense soil ? 320 Raft Foundation q-700kPa 2m 8m Dense soil ?=32° c-0 Ysai 18kN/m Plan Section Figure Q1 Compute: i. Change in Stress in the centre of raft at a depth of 5m from ground. ii. Allowable Bearing capacity. 5 marks] [5 marks] 10 marks Question 2
(a) Determine and draw the lateral pressure distribution (active hydrostatic) acting on the smooth wall shown...
(a) Determine and draw the lateral pressure distribution (active hydrostatic) acting on the smooth wall shown in Figure 2. The water table is at the interface of the soil layers. (8 marks) Soil 1: c'0 kPa, ' 32 y 16 kN/m 2 m 4 m Soil 2: c'-5 kPa, 30° Yet20 kN/m3 Figure 2 (b) In Figure 3 below, the L-shaped area carries a 200 kN/m2 uniform load. Determine the vertical stress increase due to the loading at a depth...
Question 3c, how was the effective stress calculated for the depth of 2,6 and 10 m?...
Question 3c, how was the effective stress calculated for the
depth of 2,6 and 10 m? How was the Cp calculated? Is sigma 1 the
effective stress? What is sigma? Why d is 4?
1 3c In ε- Cp w-Σε disp ε. d do initial o Deformation depth d Strain (-) (m) 4 176.2 1.08 2 62 0.27 6 107 4 128.4 0.16 0.63 152 4 10 95.5 0.10 0.39 total 2.10 in 3) A 10 m wide and very...
A rectangular foundation of 4m x 6m (as shown in Figure 5) transmits a stress of 150 kPa on the surface of a soil deposit. Plot the distribution of induced vertical stresses with depth under points A (the centre of the rectangle) and B up to a depth of 20 m 5. 4m 2m C 2m Figure 5
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. The plan and anticipated loading of a proposed building foundation are shown in the Figure below. Estimate the applied vertical stress ΔσΖ at 5 m below point A. Hint: the stresses at A due to the smaller 10 x 15 m rectangle with 500 kPa is equal to the stresses due to a larger 10 x 25m rectangle with 500 kPa and corner at A MINUS another 10 x 10 rectangle with 500 kPa also with corner at A....
2. The concrete mat foundation shown in figure below is subject to uniform loadings of 200 kPa and 150 kPa on the shaded and the unshaded areas respectively. Compute the intensity of vertical stress at depths 3m, and 6m below the point A. 40 260 N/ 150 kN/m 4.0 m
A rectangular concrete slab, 10ft x 15ft (figure below), rests on the surface of a soil mass. The load on the slab is 450kips. Determine the vertical stress increase at a depth of 10ft (a) under the center of the slab, point A; (b) under point B 15 tt Plan Section
Consider the raft foundation shown in Figure Q1 Dense soil ?-320 c-0 Raft Foundation q 700kPa 8m -o 8m Dense soil ?=32° c- 0 sa 18kN/m Plan Section Figure Q1 Compute 5 marks] [5 marks i. Change in Stress in the centre of raft at a depth of 5m from ground. ii. Allowable Bearing capacity.
Question 1: 10 marks Consider the raft foundation shown in Figure Q1 Dense soil ? 320 Raft Foundation q-700kPa 2m 8m Dense soil ?=32° c-0 Ysai 18kN/m Plan Section Figure Q1 Compute: i. Change in Stress in the centre of raft at a depth of 5m from ground. ii. Allowable Bearing capacity. 5 marks] [5 marks] 10 marks Question 2
(a) Determine and draw the lateral pressure distribution (active hydrostatic) acting on the smooth wall shown in Figure 2. The water table is at the interface of the soil layers. (8 marks) Soil 1: c'0 kPa, ' 32 y 16 kN/m 2 m 4 m Soil 2: c'-5 kPa, 30° Yet20 kN/m3 Figure 2 (b) In Figure 3 below, the L-shaped area carries a 200 kN/m2 uniform load. Determine the vertical stress increase due to the loading at a depth...
Question 3c, how was the effective stress calculated for the
depth of 2,6 and 10 m? How was the Cp calculated? Is sigma 1 the
effective stress? What is sigma? Why d is 4?
1 3c In ε- Cp w-Σε disp ε. d do initial o Deformation depth d Strain (-) (m) 4 176.2 1.08 2 62 0.27 6 107 4 128.4 0.16 0.63 152 4 10 95.5 0.10 0.39 total 2.10 in 3) A 10 m wide and very...
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