Water at 20°C is passed through a filter bed at 4.32 m/hr. The bed is 0.75 m deep and is composed of nonuniform sand (sp. gravity= 2.65) stratified so that the smallest particles are on top, the largest on bottom. The porosity and shape factors are 0.4 and 0.85 throughout the depth of bed. The size distribution of the granules given in the table below. Determine the headloss for clean water flow through bed. at 20°C; μ = 1.002x 10³ kg/m.sec. p=998.2 kg/m³ Sieve openings (mm) Mass fraction retained (%) 2.83-1.41 1.41-0.84 0.84-0.71 0.71 -0.60 0.60-0.50 0.50 -0.42 0.42-0.30 1 11 20 32 21 13 2

Water at 20°C is passed through a filter bed at 4.32 m/hr. The bed is 0.75 m deep and is composed of nonuniform sand (sp. gravity= 2.65) stratified so that the smallest particles are on top, the largest on bottom. The porosity and shape factors are 0.4 and 0.85 throughout the depth of bed. The size distribution of the granules given in the table below. Determine the headloss for clean water flow through bed. at 20°C; μ = 1.002x 10³ kg/m.sec. p=998.2 kg/m³ Sieve openings (mm) Mass fraction retained (%) 2.83-1.41 1.41-0.84 0.84-0.71 0.71 -0.60 0.60-0.50 0.50 -0.42 0.42-0.30 1 11 20 32 21 13 2

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter2: Geotechnical Properties Of Soil

Section: Chapter Questions

Problem 2.13P

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