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Question II (%35): Please, determine the length, L, of a driven timber pile required to support...
2- Assume a 460 mm pipe filled with concrete shown below needs a length of 30 meters to carry the allowable load of 670kN. If the same pile is driven into the same soil profile but different cohe...
2- Assume a 460 mm pipe filled with concrete shown below needs a length of 30 meters to carry the allowable load of 670kN. If the same pile is driven into the same soil profile but different cohesion (soft clay c-12kPa, medium stiff clay c 85kPa), to carry the same 670 kN axial load, how much do you recommend the length of the pile to be increased or decreased? Show calculations and use the Meyerhof and the method. (30 pts)...
C5 A concrete pile 450 mm in diameter and 15 m long is driven into a...
C5 A concrete pile 450 mm in diameter and 15 m long is driven into a clay. The undrained strength of the soil varies linearly with depth such that cu-0.22 Ơ'z Determine the allowable pile load capacity. The factor of safety required is 2 and Vsat- 17 kN/m3. Groundwater is at the surface.
Ques 2: An open ended cylindrical steel-pile of 400mm diameter and 6.35mm wall thickness is drive...
Provide a detailed step by
step solution
Ques 2: An open ended cylindrical steel-pile of 400mm diameter and 6.35mm wall thickness is driven into soft normally consolidated clay. Ground water level is at the ground surface. Applied load on the pile is 200kN and factor of safety factor of 3 is required. Determine the minimum length of the pile by analyzing long term and short term stability. Given: Cu-40kPa, &0'-23°, and Y. 18.9kN/m Ques 3: A group of 16 square...
A 500 mm diameter and 20 m long concrete pile is driven into the ground. The...
A 500 mm diameter and 20 m long concrete pile is driven into the ground. The soil profile at the site consists of 5.0 m of sand ( 35 and y- 19.0 kN/m) at the top, underlain by a thick layer of clay (c,- 50 kPa and y- 19.0 kN/m). Determine the maximum load that can be allowed on the pile with a safety factor of 2.5 Assuming an average Young's modulus of 35 MPa and Poisson's ratio of 0.2...
Q2. A pile group consists of 9 solid floating piles in cohesive soil. Each pile's diameter...
Q2. A pile group consists of 9 solid floating piles in cohesive soil. Each pile's diameter (d) is 0.50 m and the centre-to-centre spacing (s) is 2.5 m. The subsoil consists of a thick deposit of stiff cohesive clay with an unconfined cohesion of 80 kPa. The total unit weight of soil is 17 kN/m3. The pile group efficiency is 0.83. d 0.5m 1.5m (a) Find the allowable load capacity of the pile group if the required factor of safety...
Consider a 500 mm diameter pile having a length of 18 m in a clay. Given: gamma = 20.0 kN/m3 and ...
Consider a 500 mm diameter pile having a length of 18 m in a clay. Given: gamma = 20.0 kN/m3 and cu=60 kN/m2. a. Determine the maximum allowable load (Qall) with FS= 3. Use the a method and Table 12.11 for deter-mining the skin friction and Eq. (12.20) for determining the point load. Allow a factor of safety of 3. b. What percentage of the ultimate load is being carried by the pile shaft? Is it a friction pile?
Base on the soil profile above (Fig.3), it was designed to use driven pile with dimension...
Base on the soil profile above (Fig.3), it was
designed to use driven pile with dimension 500mm x 500mm to carry
out the following design load (use factor of safety = 2):
i. 200 kN
ii. 1000 kN
iii. 3000 kN
Determine the required depth of driven pile (assume no defective of
pile during installation process)
Sand Layer 1 r = 16.5 kN/m Ysat = 18.5 kN/m c' = 0 kPa O' = 30° 20 m Sand Layer 2 y...
, calculate the required length and width of a PSC pile to support the allowable load.
You are designing the foundation for a natural gas import terminal. The subsurface is
predominantly alluvial clays in the upper 6 – 15 m below the ground surface (BGS), which
has resulted in large post construction settlements on nearby structures. To prevent large
settlements and differential settlements, the new gas tanks will be supported by pile
foundations. You have determined that pre-stressed concrete (PSC) piles are the most
economical solution. The pile layout will be a square with center-to-center spacing...
2. For the driven pile shown in the soil profile below: Outside Diameter 2 Soft Clay...
2. For the driven pile shown in the soil profile below: Outside Diameter 2 Soft Clay (CL) Inside Diameter 111 Ysa 105 pcf Gu 500 psf, 0 30' Hollow (soil plugged) (Assume NC) Firm Clay (CL) Ya 115 pcf Gu 750 psf, 8 Soil (Assume NC) Note: Pile & soil profile are not drawn to scale 40 Plug a. Calculate the ultimate load carrying capacity of the pile tip (Qp) using Meyerhof's method. Assume that the total vertical stress at...
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...
2- Assume a 460 mm pipe filled with concrete shown below needs a length of 30 meters to carry the allowable load of 670kN. If the same pile is driven into the same soil profile but different cohesion (soft clay c-12kPa, medium stiff clay c 85kPa), to carry the same 670 kN axial load, how much do you recommend the length of the pile to be increased or decreased? Show calculations and use the Meyerhof and the method. (30 pts)...
C5 A concrete pile 450 mm in diameter and 15 m long is driven into a clay. The undrained strength of the soil varies linearly with depth such that cu-0.22 Ơ'z Determine the allowable pile load capacity. The factor of safety required is 2 and Vsat- 17 kN/m3. Groundwater is at the surface.
Provide a detailed step by
step solution
Ques 2: An open ended cylindrical steel-pile of 400mm diameter and 6.35mm wall thickness is driven into soft normally consolidated clay. Ground water level is at the ground surface. Applied load on the pile is 200kN and factor of safety factor of 3 is required. Determine the minimum length of the pile by analyzing long term and short term stability. Given: Cu-40kPa, &0'-23°, and Y. 18.9kN/m Ques 3: A group of 16 square...
A 500 mm diameter and 20 m long concrete pile is driven into the ground. The soil profile at the site consists of 5.0 m of sand ( 35 and y- 19.0 kN/m) at the top, underlain by a thick layer of clay (c,- 50 kPa and y- 19.0 kN/m). Determine the maximum load that can be allowed on the pile with a safety factor of 2.5 Assuming an average Young's modulus of 35 MPa and Poisson's ratio of 0.2...
Q2. A pile group consists of 9 solid floating piles in cohesive soil. Each pile's diameter (d) is 0.50 m and the centre-to-centre spacing (s) is 2.5 m. The subsoil consists of a thick deposit of stiff cohesive clay with an unconfined cohesion of 80 kPa. The total unit weight of soil is 17 kN/m3. The pile group efficiency is 0.83. d 0.5m 1.5m (a) Find the allowable load capacity of the pile group if the required factor of safety...
Base on the soil profile above (Fig.3), it was
designed to use driven pile with dimension 500mm x 500mm to carry
out the following design load (use factor of safety = 2):
i. 200 kN
ii. 1000 kN
iii. 3000 kN
Determine the required depth of driven pile (assume no defective of
pile during installation process)
Sand Layer 1 r = 16.5 kN/m Ysat = 18.5 kN/m c' = 0 kPa O' = 30° 20 m Sand Layer 2 y...
2. For the driven pile shown in the soil profile below: Outside Diameter 2 Soft Clay (CL) Inside Diameter 111 Ysa 105 pcf Gu 500 psf, 0 30' Hollow (soil plugged) (Assume NC) Firm Clay (CL) Ya 115 pcf Gu 750 psf, 8 Soil (Assume NC) Note: Pile & soil profile are not drawn to scale 40 Plug a. Calculate the ultimate load carrying capacity of the pile tip (Qp) using Meyerhof's method. Assume that the total vertical stress at...
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...
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