63.A timber pile of length 8m and diameter of 0.2m is driven with a 20 kN drop hammer, falling freely from a height of 1.5m. The total penetration of the pile in the last 5 blows is 40 mm. Use the engineering news record expression. Assume a factor of safety of 6 and empirical factor (allowing reducing in the theoretical set, due to energy losses) of 2.5 cm. The safe load carrying capacity of the pile

63.A timber pile of length 8m and diameter of 0.2m is driven with a 20 kN drop hammer, falling freely from a height of 1.5m. The total penetration of the pile in the last 5 blows is 40 mm. Use the engineering news record expression. Assume a factor of safety of 6 and empirical factor (allowing reducing in the theoretical set, due to energy losses) of 2.5 cm. The safe load carrying capacity of the pile

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.

Question

63.A timber pile of length 8m and diameter of 0.2m is driven with a 20 kN drop hammer,
falling freely from a height of 1.5m. The total penetration of the pile in the last 5 blows is 40
mm. Use the engineering news record expression. Assume a factor of safety of 6 and
empirical factor (allowing reducing in the theoretical set, due to energy losses) of 2.5 cm. The
safe load carrying capacity of the pile

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63.A timber pile of length 8m and diameter of 0.2m is driven with a 20 kN drop hammer, falling freely from a height of 1.5m. The total penetration of the pile in the last 5 blows is 40 mm. Use the engineering news record expression. Assume a factor of safety of 6 and empirical factor (allowing reducing in the theoretical set, due to energy losses) of 2.5 cm. The safe load carrying capacity of the pile
Please round to the nearest Hundredth (i.e., 0.01). No Comma! A square pile, 13 m long is driven into a homogeneous sand layer. The pile's width (diameter) is 0.5 m. The standard penetration resistance near the vicinity of the pile is 17. Calculate the allowable bearing force (Qa) of the pile. Use FS = 2 and Briaud & Tucker method. Hint: Qa = Qu / FS Qa = KN
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Using Engineering News formula, the allowable Load (Q) of a wooden pile hammered with a drop hammer (W = 30 kN), having free fall (H) 1.5 m, penetration in last blow (S) 5 mm, using empirical constant (C) as 2,5 and factor of safety as 6, will be
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