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3. For the embankment in Question 2, if a circular slip surface is assumed as illustrated in Figu...
An earthen embankment was to be built on a saturated clay. A non-circular slips surface was assum...
An earthen embankment was to be built on a saturated clay. A non-circular slips surface was assumed as illustrated in Figure Q2. Using Janbu's method to determine the factor of safety based on an effective stress analysis. The ground water level is below the assumed slip surface. Discuss whether other methods can be used for the assumed slip surface Assumed slip plane .. ./.Soil 2 5 m 59.9%. Soil 1 45° 45° 2 m 2.9 m*
An earthen embankment was...
Geomechanics (b) Figure 1 shows a water retaining embankment with a slope of 1:2 (vertical kN/m'....
Geomechanics
(b) Figure 1 shows a water retaining embankment with a slope of 1:2 (vertical kN/m'. The clay soil has an undrained cohesion of 30 kPa and a saturated unit weight of i18 following information is given: Area FBDE-42m2 (above water level) Centroidal distance dA-13m Area AED 144m2 (below water level) Centroidal distance, ds -4.5m Angle AOF-83 Radius of circular slip plane, R- 22.5m (i) Determine the total disturbing moment by considering the forces Wa Ws and Pw (Gfi) Determine...
A homogeneous earth embankment is 25 m high and the slope inclination is 2:1 (H:V). The...
A homogeneous earth embankment is 25 m high and the slope inclination is 2:1 (H:V). The effective cohesion of the embankment is 45 kN/m², its effective friction angle is 25 degrees, and the bulk unit weight is 19.2 kN/m'. Assume the potential failure surface is a plane. Determine the minimum factor of safety of the slope. Follow the procedure outlined on page 347 of your textbook. Assume initial F = 3.2. Is the slope stable?
1. Using the concepts covered in earth pressure theories (not Taylor's chart), the critical depth of...
1. Using the concepts covered in earth pressure theories (not Taylor's chart), the critical depth of vertical cut in a saturated cohesive soil with c = 15.5kPa and y = 18 kN/m3 will be? a) 0.86 m c) 6.88 m b) 3.44 m d) 1.72 m condition: 2. The upstream and downstream slopes of an earth dam is critical for the a) reservoir partial pool c) steady seepage b) sudden drawdown d) earthquake 3. In the simplified Bishop's method of...
4) A large slope is constructed as shown in the figure below. A failure surface is...
4) A large slope is constructed as shown in the figure below. A failure surface is considered passing through the crest and the toe of the slope. The soil properties are y= 18 kN/m2, c 0 kPa and =25°. The water table is well below the ground surface Using the theory for the stability of an infinite slope, estimate the factor of safety. [5 а. marks] b. Use Fellenius' method to determine the Factor of Safety against failure. [13 marks]...
A proposed residential development of a single tower is to be built on a sloping site...
A proposed residential development of a single tower is to be built on a sloping site as shown in Figure 1. The site has a (W1m x 25m wide building zone. A level platform has to be created by building a permanent retaining structure outside the building zone but within the (W2m x (W2m wide site boundary. A temporary slope, which may extend outside the site boundary, has to be formed in advance for construction of the retaining structure. ---...
Question 2 (a) A 4 m high masonry retaining wall of width 1.8 is built to...
Question 2 (a) A 4 m high masonry retaining wall of width 1.8 is built to retain a 2-layered soil profile shown in Figure 2 on Bonham Road on Hong Kong Island with a surface sucharge of 20 kPa. The soil parameters are given in the figure. During raining season, ground water rises to interface between Soil 1 and Soil 2. Assume that there is no friction between the vertical wall and the soils. The sliding friction angle between the...
Answers: QUESTION 3 (TZU marks) subjected an internal gauge modulus of elasticity of 210 GPa and...
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QUESTION 3 (TZU marks) subjected an internal gauge modulus of elasticity of 210 GPa and a A closed cylindrical pressure vessel illustrated in the figure below is pressure of 5.0 MPa. The vessel is made of steel with a Poisson's ratio of 0.29. A delta strain gauge rosette, attached to the external surface of a closed cylindrical pressure vessel measures the following strains a 74 x 10-6 10-6 E60 246 x 248 x 10 E120 Determine the strain components...
An earthen embankment was to be built on a saturated clay. A non-circular slips surface was assumed as illustrated in Figure Q2. Using Janbu's method to determine the factor of safety based on an effective stress analysis. The ground water level is below the assumed slip surface. Discuss whether other methods can be used for the assumed slip surface Assumed slip plane .. ./.Soil 2 5 m 59.9%. Soil 1 45° 45° 2 m 2.9 m*
An earthen embankment was...
Geomechanics
(b) Figure 1 shows a water retaining embankment with a slope of 1:2 (vertical kN/m'. The clay soil has an undrained cohesion of 30 kPa and a saturated unit weight of i18 following information is given: Area FBDE-42m2 (above water level) Centroidal distance dA-13m Area AED 144m2 (below water level) Centroidal distance, ds -4.5m Angle AOF-83 Radius of circular slip plane, R- 22.5m (i) Determine the total disturbing moment by considering the forces Wa Ws and Pw (Gfi) Determine...
A homogeneous earth embankment is 25 m high and the slope inclination is 2:1 (H:V). The effective cohesion of the embankment is 45 kN/m², its effective friction angle is 25 degrees, and the bulk unit weight is 19.2 kN/m'. Assume the potential failure surface is a plane. Determine the minimum factor of safety of the slope. Follow the procedure outlined on page 347 of your textbook. Assume initial F = 3.2. Is the slope stable?
1. Using the concepts covered in earth pressure theories (not Taylor's chart), the critical depth of vertical cut in a saturated cohesive soil with c = 15.5kPa and y = 18 kN/m3 will be? a) 0.86 m c) 6.88 m b) 3.44 m d) 1.72 m condition: 2. The upstream and downstream slopes of an earth dam is critical for the a) reservoir partial pool c) steady seepage b) sudden drawdown d) earthquake 3. In the simplified Bishop's method of...
4) A large slope is constructed as shown in the figure below. A failure surface is considered passing through the crest and the toe of the slope. The soil properties are y= 18 kN/m2, c 0 kPa and =25°. The water table is well below the ground surface Using the theory for the stability of an infinite slope, estimate the factor of safety. [5 а. marks] b. Use Fellenius' method to determine the Factor of Safety against failure. [13 marks]...
A proposed residential development of a single tower is to be built on a sloping site as shown in Figure 1. The site has a (W1m x 25m wide building zone. A level platform has to be created by building a permanent retaining structure outside the building zone but within the (W2m x (W2m wide site boundary. A temporary slope, which may extend outside the site boundary, has to be formed in advance for construction of the retaining structure. ---...
Question 2 (a) A 4 m high masonry retaining wall of width 1.8 is built to retain a 2-layered soil profile shown in Figure 2 on Bonham Road on Hong Kong Island with a surface sucharge of 20 kPa. The soil parameters are given in the figure. During raining season, ground water rises to interface between Soil 1 and Soil 2. Assume that there is no friction between the vertical wall and the soils. The sliding friction angle between the...
Answers:
QUESTION 3 (TZU marks) subjected an internal gauge modulus of elasticity of 210 GPa and a A closed cylindrical pressure vessel illustrated in the figure below is pressure of 5.0 MPa. The vessel is made of steel with a Poisson's ratio of 0.29. A delta strain gauge rosette, attached to the external surface of a closed cylindrical pressure vessel measures the following strains a 74 x 10-6 10-6 E60 246 x 248 x 10 E120 Determine the strain components...
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