Estimate the side resistance Qs by: a. Using Eqs. (9.40) through (9.42). Use K= 1.5 and 8 = 0.60 b. Coyle and Castello's method [Eq. (9.44)] 20 m Concrete pile 460 mm x 460 mm Loose sand $₁ = 30° y=18.6 kN/m³ Dense sand $2=36 y = 18.5 kN/m³

Estimate the side resistance Qs by: a. Using Eqs. (9.40) through (9.42). Use K= 1.5 and 8 = 0.60 b. Coyle and Castello's method [Eq. (9.44)] 20 m Concrete pile 460 mm x 460 mm Loose sand $₁ = 30° y=18.6 kN/m³ Dense sand $2=36 y = 18.5 kN/m³

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter15: Retaining Walls, Braced Cuts, And Sheet Pile Walls

Section: Chapter Questions

Problem 15.22P

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Measuring site work, Excavation and Piling

Bid drawings typically include very little material about the precise requirements of site work operations, measuring site work and excavation work differs from measuring most other works on a construction project. The actual site work conditions are not provided and also the dimensions of the excavations are not known during the pre-construction phase. The precise measurement of the excavation and backfill of the earth material and topsoil is important for a contractor to decide upon the total cost required for the process. All the works should be carried out under OSHA (Occupational Safety and Health Administration) standards to ensure the safety of the workers.

Question

Estimate the side resistance Qs by:
a. Using Eqs. (9.40) through (9.42). Use K = 1.5 and 8 = 0.60
b. Coyle and Castello's method [Eq. (9.44)]
20 m
Concrete pile
460 mm x 460 mm
Loose sand
$₁ = 30°
y = 18.6 kN/m³
Dense sand
$2=36
y = 18.5 kN/m³

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