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A 500 mm diameter and 20 m long concrete pile is driven into the ground. The...
Ques 2: An open ended cylindrical steel-pile of 400mm diameter and 6.35mm wall thickness is drive...
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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...
2 A freestanding group of six (2x3) solid concrete piles, diameter 400mm and centre-to- centre spacing of 1m cap. T...
2 A freestanding group of six (2x3) solid concrete piles, diameter 400mm and centre-to- centre spacing of 1m cap. The distribution of undrained shear strength can be given by the equation 100 +50vz where z is the depth measured from final ground level. Load test gave 5mm settlement at 500KN. are to be driven 10m into stiff clay and connected using a rigid pile (a) Determine the ultimate vertical load capacity of the group assuming the adhesion factor a =...
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.
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...
12.19 A 20 m long bored concrete pile having a diameter of 350 mm is load...
12.19 A 20 m long bored concrete pile having a diameter of 350 mm is load tested, and the data are given below: Load (kN) 0 250 500 750 1000 1250 1000 750 500 2500 Settlement 0 2.0 5.0 8.2 15.0 39.6 39.5 38.2 37.5 36.1 35.5 (mm) Also given: Econcrete = 25 X 10' MN/m² a. Estimate the allowable pile load using Davisson's (1973) method, with FS = 2.5. b. At the maximum load of 1250 kN, what are...
A group pile in clay is shown in the figure below. Determine the maximum vertical load...
A group pile in clay is shown in the figure below. Determine the maximum vertical load Qg can be applied if the allowable consolidation settlement of the pile group is set to be 0.2 m. Use the 2: 1 stress distribution method to estimate the average effective stress in the clay layer. Qg 3 m Sand Groundwater ? table 15.72 kN/m3 Sand 3 m Ysat 18.55 kN/m2 2.5 m x 3 m Group plan 15 mNormally consolidated clay 185 nn...
Help please! Problem 3 A prefabricated concrete pile is to be driven into a dense sand...
Help please!
Problem 3 A prefabricated concrete pile is to be driven into a dense sand deposit as shown in Figure 3 Determine the following; 1. Ultimate bearing capacity of the pile using Meyerhof and NORDLUND method. 2. Using Driven sofiware, calculate the capacity of the pile. (Attach report from the software). 3. At this same soil profile, compare the ultimate capacity of different piles (high displacement and low displacement) and comment based on your results. You should present the...
load transferred directly by compression to piles over shaded area Question 2 A pile group of...
load transferred directly by compression to piles over shaded area Question 2 A pile group of five identical hollow steel piles is designed to support a tower. The arrangement is as shown. Ra = 0.25, D=0.7m, L = 8m. The soil consists of two layers, first being a sand layer with following results: r.c. column 0.5 0.8 1.2 1.6 2.0 Depth (m) N-Value 8 10 11 12 15 L 40N Fs = 2 Nave L for <10 D L for...
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?
, 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...
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...
2 A freestanding group of six (2x3) solid concrete piles, diameter 400mm and centre-to- centre spacing of 1m cap. The distribution of undrained shear strength can be given by the equation 100 +50vz where z is the depth measured from final ground level. Load test gave 5mm settlement at 500KN. are to be driven 10m into stiff clay and connected using a rigid pile (a) Determine the ultimate vertical load capacity of the group assuming the adhesion factor 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.
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...
12.19 A 20 m long bored concrete pile having a diameter of 350 mm is load tested, and the data are given below: Load (kN) 0 250 500 750 1000 1250 1000 750 500 2500 Settlement 0 2.0 5.0 8.2 15.0 39.6 39.5 38.2 37.5 36.1 35.5 (mm) Also given: Econcrete = 25 X 10' MN/m² a. Estimate the allowable pile load using Davisson's (1973) method, with FS = 2.5. b. At the maximum load of 1250 kN, what are...
A group pile in clay is shown in the figure below. Determine the maximum vertical load Qg can be applied if the allowable consolidation settlement of the pile group is set to be 0.2 m. Use the 2: 1 stress distribution method to estimate the average effective stress in the clay layer. Qg 3 m Sand Groundwater ? table 15.72 kN/m3 Sand 3 m Ysat 18.55 kN/m2 2.5 m x 3 m Group plan 15 mNormally consolidated clay 185 nn...
Help please!
Problem 3 A prefabricated concrete pile is to be driven into a dense sand deposit as shown in Figure 3 Determine the following; 1. Ultimate bearing capacity of the pile using Meyerhof and NORDLUND method. 2. Using Driven sofiware, calculate the capacity of the pile. (Attach report from the software). 3. At this same soil profile, compare the ultimate capacity of different piles (high displacement and low displacement) and comment based on your results. You should present the...
load transferred directly by compression to piles over shaded area Question 2 A pile group of five identical hollow steel piles is designed to support a tower. The arrangement is as shown. Ra = 0.25, D=0.7m, L = 8m. The soil consists of two layers, first being a sand layer with following results: r.c. column 0.5 0.8 1.2 1.6 2.0 Depth (m) N-Value 8 10 11 12 15 L 40N Fs = 2 Nave L for <10 D L for...
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