8.4 A concrete pile 405 mm Determine the allowable load that the pile can carry (FS 4). Use the a...
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)...
A square column foundation has to carry a gross allowable load of 3500 kN (FS-3). Given: D 1.5 m, γ = 17 kN /ms.Ф-34°, and d :0. Use Terzaghi's equation to determine the size of the foundation (B). Assume general shear failure. For = 34°, M-365 and My- 38.04 (Enter your answer to three significant figures.) Im
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...
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.
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?
A square column foundation has to carry a gross allowable load of 1805 kN (FS-3) Given: Df = 1.5 m, ?-15 9 kN/ms,p -34 , and c. 0. Use Terzaghi's equation to determine the size of the foundation (B). Assume general shear failure. For = 34 , N: 365 and 3804 (Enter your answer to three significant figures.)
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...
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14.3 Foundation engineering 143 A driven closed-ended pipe pile is shown in Figure 14.40. a. Find the ultimate point load. b. Determine the ultimate frictional resistance, Q use K-1.4 and 8-0.6 c. Calculate the allowable load of the pile; use FS- 4 ncrete pile 20 m long with a cross section of 381 mm x 381 mm is fully ubook3rdEd(chpd-14)%2og.pdf Chapter 14 Deep Foundations-Piles and Drilled Shafts Sand -16 kN/m 6m Sand -184AN 30 ti m...
Q6. An eccentrically loaded foundation is shown in figure below. Use FS of 4 and determine the maximum allowable load that the foundation can carry. Use Meyerhof's effective area method (Eccentricity in one direction ? 17 kN/m3 c'=0 ?' = 30° only) e = 0.15 m 1.0 m all 1.5m× 1.5m Centerline