Q4) Determine the required SOR and scour velocity in a grit chamber to remove gritparticles of 0.23 mm diameter and S.G. -2.66, and suspended organic particlesof 0.16 mm diameter and S.G.= 1.2.Assume: CD-10, B-0.06, f=0.03(10 marks)

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Answered: Q4) Determine the required SOR and…

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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Q1: ( Will a grit particle with a radius of 0.10 mm and a specific gravity of 2.65 be collected in a horizontal grit chamber that is 13.5 m in length if the average grit-chamber flow is 0.15 m³/s, the width of the chamber is 0.56 m, and the horizontal velocity is 0.25 m/s? Hint: Use the data below V's = 8 S-1 18 V .v- 0.959 x 106 m²/s
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ANSWER MUST BE: (a) t50 = 8.37 years, (b) t90 = 35.96 years, (c) U ≈ 17%, (d) U ≈ 39% A clay specimen was tested in a laboratory consolidation device, whichwas 12.7 mm (½ in.) thick and the top and the bottom boundaries weredrained. A 50% consolidation time on the specimen was obtained as28.4 minutes. Determine the following:(a) Time for 50% consolidation in the field with this soil with a 2.5 mthickness where only the top layer is drained (b) Time for 90% consolidation in the field with this soil with a 2.5 mthickness where only the top layer is drained (c) For the same field condition above, at the end of 1 year after theplacement of load, how much primary consolidation settlementoccurs relative to its final amount of the settlement? (d) The same question as in (c), but at the end of 5 years
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Q4) Determine the required SOR and scour velocity in a grit chamber to remove grit particles of 0.23 mm diameter and S.G. -2.66, and suspended organic particles of 0.16 mm diameter and S.G.= 1.2. Assume: CD-10, B-0.06, f=0.03 (10 marks)