2.15m-2.15m2.15m2.15m2.15m2.15m 8 8 -1.25
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- State the different types of piles according to its function and construction?The pile driver drives the 91.4 cm centers piles until the penetration under the last hammer blow is 2.54 cm in a quicksand (Bearing = 5.38 ton/m2). The driver’s 1-ton hammer drops 2.6 m. Piles are sawn off and surmounted by a concrete slab 91.4 cm thick. What average bearing power in Ton/m2, does this foundation provide?State the method to determine the N-value of soil and the normal N-value required for supporting friction piles
- What are the primary advantages of using laterally loaded vertical piles instead of battered piles?A circular pile having a diameter of 0.33 m is 14.21 m long which is embedded in a layer of dense compacted sand having the given properties. Soil properties: Lateral pressure factor, K = 3.53 Nq = 99 Specific gravity, Gs= 2.61 Void ratio, e =1.21 Saturation above the GWT = 0.41 Ground water table (GWT) is located 3.58 m below the ground. Use unit weight of water = 9.81 kN/m3 Coefficient of friction = 0.41 Factor of safety = 3.98 Calculate the allowable capacity of the pile in kN.What are the methods of increasing the lateral resistance in piles.
- Q # 1. What is pile foundation? Discuss the classification of pile based on materials/composition and load transfer mechanism. Civil Engineering Subject= Geotecnical Design Plz Type hereA rectangular footing is acted by a vertical load of 8060 kN and two horizontal forces of 1500kN in both the long and the short directions with a distance of 0.6m from the ground surface. Determine: a) The base pressure at the four corners if the footing was on soil. b) Pile loads at the four corners if the footing was on piles whose pattern as shown.7. A reinforced concrete square footing supports a 400mm x 400mm square column carrying a total dead load of 740kN and a total live load of 1120kN. The footing dimension is 3m x 3m and is supported by 9 piles 1m apart on a 3x3 formation. The effective depth of the footing is 700mm. Take f’C = 28MPa for concrete and fy = 415MPa for steel. a. Determine the factored load on each pile. b. Determine the nominal wide beam shear stress to be resisted by the footing. c. Determine the nominal punching shear stress to be resisted by the footing. d. Determine the factored moment to be resisted by the footing.