2. A 26-meter concrete pile with a 50 cm diameter is driven into multiple layered...
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2. A 26-meter concrete pile with a 50 cm diameter is driven into multiple layered soils as described down. The groundwater table is at a 6-meter depth below the surface. Using the Factor of Safety (FS -2.5). estimate the allowabic pile capacity "Qutz." that the pile can carry with each of the following: a Meyerhof's method b. Briaud's method c. Based on the results of part a and b, adopt a value of Oxu Depth Soil SPT NO Sat, unit weight [N/m") m] 2 4 6 7.5 10 20 26 28 34 SP SM SM SP SP SP SP SM SM Blows/300 mm) 22 23 23 19 19 20 20 25 28 Dry unit weight [kN/m") 17 17 17 15 15 15 15 18 18 8&ANNNNNN The solution results are in the table below N) kN (NO AN 1525.7 50.9% Method Q-side Q-point Q-pile Q-side Q-point Q-all Meyerhof (c.) 1570.5 3105.2 Coyle and Castello (0,0) 1436.7 Meyerhof (No) 1671.3 3634.8 Briaud (Neo) 2194.5 3481.1 49178 29.2% 70.8% 1967.1 1963.5 46.0% 54.0% 1232.4 3426.9 64.0% 36.0% 1370.8
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