Answered: A brown silty sand fill 5 m thick was…

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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using the data given in the image uploaded. After 10 yr of consolidation, an additional areal fill load of 49 kpa is placed on the site. compute the amount of additional settlement and prepare a plot of the settlement.

Transcribed Image Text:Soil profile Pressure (kPa) 50 100 150 200 Ao = pgz = 2.0 Mg/m3 x 9.81 X 5 m Brown silty sand (SM) (fill) = 98.1 kPa 98.1" kPa -5 3.8* 101.9 GWT 11.5 109.6 19.1 117.2 Gray silty clay (CL) - 10 26.8 124.9 8: + Ao 34.4 132.5 42.1 140.2 - 15 A 49,7 147.8 1.52 Mg/m 57.4 155.5 65.0 163.1 * 72.7 170,8 -20 76.5* 174.6" > Brown if sandy gravel (GP) Cincompressible *Computed -25 (o, + A0) 20 m " avs + (Psa " PwIgz V.V = 98.1 + (1.52 - 1.0)9.81 x 15 m = 98.1 + 76.5 = 174.6 kPa Fig. Ex. 9.12a Soil profile and effective stress versus depth. settlement of the silty clay layer. Properties of the normally consolidated silty clay layer are: Initial void ratio, e, = 1.1. Compression index, C, = 0.36. Secondary compression index, C, = 0.06. Saturated density, Pat = 1.52 Mg/m. Coefficient of consolidation, c, The density of the silty sand fill, p, is 2.0 Mg/m', and the ground water table is at the interface of the fill and clay, at -5 m. 0.858 m/yг. Depth (m)

Transcribed Image Text:A brown silty sand fill 5 m thick was placed over a 15 m thick layer of compressible gray silty clay. Underlying the clay layer is brown sandy gravel. The soil profile is shown in Fig. Ex. 9.12a. Assume for this problem that the settlement of the fill and the sandy gravel is small compared to the

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